401k Plan data: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) plan

WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 401k Plan overview

Plan Name	WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP)
Plan identification number	002

WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) Benefits

401k Plan Type

Defined Contribution Pension

Plan Features/Benefits

Profit-sharing
ERISA section 404(c) Plan - This plan, or any part of it is intended to meet the conditions of 29 CFR 2550.404c-1.
Total participant-directed account plan - Participants have the opportunity to direct the investment of all the assets allocated to their individual accounts, regardless of whether 29 CFR 2550.404c-1 is intended to be met.
Code section 401(k) feature - A cash or deferred arrangement described in Code section 401(k) that is part of a qualified defined contribution plan that provides for an election by employees to defer part of their compensation or receive these amounts in cash.
Code section 401(m) arrangement - Employee contributions are allocated to separate accounts under the plan or employer contributions are based, in whole or in part, on employee deferrals or contribtions to the plan. Not applicable if plan is 401(k) plan with only QNECs and/or QMACs. Also not applicable if Code section 403(b)(1), 403(b)(7) or 408 arrangements/accounts/annuities.
ESOP other than a leveraged ESOP - A completed Schedule E must be attached to a Form 5500 filed for an Employee Stock Ownership Plan (ESOP).
Plan provides for automatic enrollment in plan that has employee contributions deducted from payroll.
Total or partial participant-directed account plan - plan uses default investment account for participants who fail to direct assets in their account.
Plan sponsor(s) is (are) a member(s) of a controlled group (Code sections 414(b), (c), or (m)).

401k Sponsoring company profile

WESTAMERICA BANCORPORATION has sponsored the creation of one or more 401k plans.

Company Name: WESTAMERICA BANCORPORATION

Employer identification number (EIN): 942156203

NAIC Classification: 522110
NAIC Description: Commercial Banking

Additional information about WESTAMERICA BANCORPORATION

Jurisdiction of Incorporation: California Department of State

Incorporation Date:

Company Identification Number: C0645328

More information about WESTAMERICA BANCORPORATION

Form 5500 Filing Information

Submission information for form 5500 for 401k plan WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP)

Plan id# Filing Submission Date Name of Administrator Date Administrator Signed Name of Company Sponsor Date Sponsor Signed
002 2022-01-01
002 2021-01-01
002 2020-01-01
002 2020-01-01
002 2020-01-01
002 2019-01-01
002 2018-01-01 DEBRA ABRAO ROB THORSON 2019-07-08
002 2017-01-01 DEBRA ABRAO DEBRA ABRAO 2018-07-17
002 2016-01-01 DEBRA ABRAO
002 2015-01-01 DEBRA ABRAO
002 2014-01-01 DEBRA ABRAO
002 2013-01-01 DEBRA ABRAO DEBRA ABRAO 2014-07-30
002 2012-01-01 DEBRA ABRAO
002 2011-01-01 DEBRA ABRAO JONATHAN LEVITT 2012-08-21
002 2010-01-01 DEBRA ABRAO JONATHAN LEVITT 2011-07-27
002 2009-01-01 DEBRA ABRAO JONATHAN LEVITT 2010-07-26

Plan id#	Filing Submission Date	Name of Administrator	Name of Company Sponsor	Date Sponsor Signed
002	2022-01-01
002	2021-01-01
002	2020-01-01
002	2020-01-01
002	2020-01-01
002	2019-01-01
002	2018-01-01	DEBRA ABRAO	ROB THORSON	2019-07-08
002	2017-01-01	DEBRA ABRAO	DEBRA ABRAO	2018-07-17
002	2016-01-01	DEBRA ABRAO
002	2015-01-01	DEBRA ABRAO
002	2014-01-01	DEBRA ABRAO
002	2013-01-01	DEBRA ABRAO	DEBRA ABRAO	2014-07-30
002	2012-01-01	DEBRA ABRAO
002	2011-01-01	DEBRA ABRAO	JONATHAN LEVITT	2012-08-21
002	2010-01-01	DEBRA ABRAO	JONATHAN LEVITT	2011-07-27
002	2009-01-01	DEBRA ABRAO	JONATHAN LEVITT	2010-07-26

Plan Statistics for WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP)

401k plan membership statisitcs for WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP)

Measure Date Value
2022: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2022 401k membership
Total participants, beginning-of-year 2022-01-01 960
Total number of active participants reported on line 7a of the Form 5500 2022-01-01 568
Number of retired or separated participants receiving benefits 2022-01-01 35
Number of other retired or separated participants entitled to future benefits 2022-01-01 304
Total of all active and inactive participants 2022-01-01 907
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2022-01-01 5
Total participants 2022-01-01 912
Number of participants with account balances 2022-01-01 734
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2022-01-01 0
2021: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2021 401k membership
Total participants, beginning-of-year 2021-01-01 1,021
Total number of active participants reported on line 7a of the Form 5500 2021-01-01 623
Number of retired or separated participants receiving benefits 2021-01-01 34
Number of other retired or separated participants entitled to future benefits 2021-01-01 298
Total of all active and inactive participants 2021-01-01 955
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2021-01-01 5
Total participants 2021-01-01 960
Number of participants with account balances 2021-01-01 770
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2021-01-01 0
2020: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2020 401k membership
Total participants, beginning-of-year 2020-01-01 980
Total number of active participants reported on line 7a of the Form 5500 2020-01-01 700
Number of retired or separated participants receiving benefits 2020-01-01 29
Number of other retired or separated participants entitled to future benefits 2020-01-01 286
Total of all active and inactive participants 2020-01-01 1,015
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2020-01-01 6
Total participants 2020-01-01 1,021
Number of participants with account balances 2020-01-01 815
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2020-01-01 0
2019: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2019 401k membership
Total participants, beginning-of-year 2019-01-01 994
Total number of active participants reported on line 7a of the Form 5500 2019-01-01 668
Number of retired or separated participants receiving benefits 2019-01-01 32
Number of other retired or separated participants entitled to future benefits 2019-01-01 276
Total of all active and inactive participants 2019-01-01 976
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2019-01-01 4
Total participants 2019-01-01 980
Number of participants with account balances 2019-01-01 811
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2019-01-01 0
2018: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2018 401k membership
Total participants, beginning-of-year 2018-01-01 1,016
Total number of active participants reported on line 7a of the Form 5500 2018-01-01 696
Number of retired or separated participants receiving benefits 2018-01-01 29
Number of other retired or separated participants entitled to future benefits 2018-01-01 262
Total of all active and inactive participants 2018-01-01 987
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2018-01-01 7
Total participants 2018-01-01 994
Number of participants with account balances 2018-01-01 826
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2018-01-01 0
2017: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2017 401k membership
Total participants, beginning-of-year 2017-01-01 992
Total number of active participants reported on line 7a of the Form 5500 2017-01-01 727
Number of retired or separated participants receiving benefits 2017-01-01 27
Number of other retired or separated participants entitled to future benefits 2017-01-01 258
Total of all active and inactive participants 2017-01-01 1,012
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2017-01-01 4
Total participants 2017-01-01 1,016
Number of participants with account balances 2017-01-01 860
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2017-01-01 0
2016: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2016 401k membership
Total participants, beginning-of-year 2016-01-01 1,107
Total number of active participants reported on line 7a of the Form 5500 2016-01-01 735
Number of retired or separated participants receiving benefits 2016-01-01 22
Number of other retired or separated participants entitled to future benefits 2016-01-01 231
Total of all active and inactive participants 2016-01-01 988
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2016-01-01 4
Total participants 2016-01-01 992
Number of participants with account balances 2016-01-01 856
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2016-01-01 0
2015: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2015 401k membership
Total participants, beginning-of-year 2015-01-01 1,097
Total number of active participants reported on line 7a of the Form 5500 2015-01-01 850
Number of retired or separated participants receiving benefits 2015-01-01 18
Number of other retired or separated participants entitled to future benefits 2015-01-01 236
Total of all active and inactive participants 2015-01-01 1,104
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2015-01-01 3
Total participants 2015-01-01 1,107
Number of participants with account balances 2015-01-01 902
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2015-01-01 0
2014: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2014 401k membership
Total participants, beginning-of-year 2014-01-01 1,127
Total number of active participants reported on line 7a of the Form 5500 2014-01-01 892
Number of retired or separated participants receiving benefits 2014-01-01 13
Number of other retired or separated participants entitled to future benefits 2014-01-01 191
Total of all active and inactive participants 2014-01-01 1,096
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2014-01-01 1
Total participants 2014-01-01 1,097
Number of participants with account balances 2014-01-01 953
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2014-01-01 0
2013: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2013 401k membership
Total participants, beginning-of-year 2013-01-01 1,134
Total number of active participants reported on line 7a of the Form 5500 2013-01-01 941
Number of retired or separated participants receiving benefits 2013-01-01 12
Number of other retired or separated participants entitled to future benefits 2013-01-01 173
Total of all active and inactive participants 2013-01-01 1,126
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2013-01-01 1
Total participants 2013-01-01 1,127
Number of participants with account balances 2013-01-01 970
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2013-01-01 0
2012: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2012 401k membership
Total participants, beginning-of-year 2012-01-01 1,431
Total number of active participants reported on line 7a of the Form 5500 2012-01-01 920
Number of retired or separated participants receiving benefits 2012-01-01 13
Number of other retired or separated participants entitled to future benefits 2012-01-01 200
Total of all active and inactive participants 2012-01-01 1,133
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2012-01-01 1
Total participants 2012-01-01 1,134
Number of participants with account balances 2012-01-01 1,046
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2012-01-01 0
2011: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2011 401k membership
Total participants, beginning-of-year 2011-01-01 1,384
Total number of active participants reported on line 7a of the Form 5500 2011-01-01 1,203
Number of retired or separated participants receiving benefits 2011-01-01 11
Number of other retired or separated participants entitled to future benefits 2011-01-01 216
Total of all active and inactive participants 2011-01-01 1,430
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2011-01-01 1
Total participants 2011-01-01 1,431
Number of participants with account balances 2011-01-01 1,128
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2011-01-01 31
2010: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2010 401k membership
Total participants, beginning-of-year 2010-01-01 1,285
Total number of active participants reported on line 7a of the Form 5500 2010-01-01 1,131
Number of retired or separated participants receiving benefits 2010-01-01 7
Number of other retired or separated participants entitled to future benefits 2010-01-01 246
Total of all active and inactive participants 2010-01-01 1,384
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2010-01-01 0
Total participants 2010-01-01 1,384
Number of participants with account balances 2010-01-01 803
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2010-01-01 46
2009: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2009 401k membership
Total participants, beginning-of-year 2009-01-01 1,085
Total number of active participants reported on line 7a of the Form 5500 2009-01-01 1,038
Number of retired or separated participants receiving benefits 2009-01-01 6
Number of other retired or separated participants entitled to future benefits 2009-01-01 241
Total of all active and inactive participants 2009-01-01 1,285
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits 2009-01-01 0
Total participants 2009-01-01 1,285
Number of participants with account balances 2009-01-01 804
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested 2009-01-01 32

Measure	Date	Value
2022: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2022 401k membership
Total participants, beginning-of-year	2022-01-01	960
Total number of active participants reported on line 7a of the Form 5500	2022-01-01	568
Number of retired or separated participants receiving benefits	2022-01-01	35
Number of other retired or separated participants entitled to future benefits	2022-01-01	304
Total of all active and inactive participants	2022-01-01	907
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2022-01-01	5
Total participants	2022-01-01	912
Number of participants with account balances	2022-01-01	734
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2022-01-01	0
2021: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2021 401k membership
Total participants, beginning-of-year	2021-01-01	1,021
Total number of active participants reported on line 7a of the Form 5500	2021-01-01	623
Number of retired or separated participants receiving benefits	2021-01-01	34
Number of other retired or separated participants entitled to future benefits	2021-01-01	298
Total of all active and inactive participants	2021-01-01	955
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2021-01-01	5
Total participants	2021-01-01	960
Number of participants with account balances	2021-01-01	770
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2021-01-01	0
2020: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2020 401k membership
Total participants, beginning-of-year	2020-01-01	980
Total number of active participants reported on line 7a of the Form 5500	2020-01-01	700
Number of retired or separated participants receiving benefits	2020-01-01	29
Number of other retired or separated participants entitled to future benefits	2020-01-01	286
Total of all active and inactive participants	2020-01-01	1,015
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2020-01-01	6
Total participants	2020-01-01	1,021
Number of participants with account balances	2020-01-01	815
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2020-01-01	0
2019: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2019 401k membership
Total participants, beginning-of-year	2019-01-01	994
Total number of active participants reported on line 7a of the Form 5500	2019-01-01	668
Number of retired or separated participants receiving benefits	2019-01-01	32
Number of other retired or separated participants entitled to future benefits	2019-01-01	276
Total of all active and inactive participants	2019-01-01	976
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2019-01-01	4
Total participants	2019-01-01	980
Number of participants with account balances	2019-01-01	811
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2019-01-01	0
2018: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2018 401k membership
Total participants, beginning-of-year	2018-01-01	1,016
Total number of active participants reported on line 7a of the Form 5500	2018-01-01	696
Number of retired or separated participants receiving benefits	2018-01-01	29
Number of other retired or separated participants entitled to future benefits	2018-01-01	262
Total of all active and inactive participants	2018-01-01	987
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2018-01-01	7
Total participants	2018-01-01	994
Number of participants with account balances	2018-01-01	826
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2018-01-01	0
2017: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2017 401k membership
Total participants, beginning-of-year	2017-01-01	992
Total number of active participants reported on line 7a of the Form 5500	2017-01-01	727
Number of retired or separated participants receiving benefits	2017-01-01	27
Number of other retired or separated participants entitled to future benefits	2017-01-01	258
Total of all active and inactive participants	2017-01-01	1,012
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2017-01-01	4
Total participants	2017-01-01	1,016
Number of participants with account balances	2017-01-01	860
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2017-01-01	0
2016: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2016 401k membership
Total participants, beginning-of-year	2016-01-01	1,107
Total number of active participants reported on line 7a of the Form 5500	2016-01-01	735
Number of retired or separated participants receiving benefits	2016-01-01	22
Number of other retired or separated participants entitled to future benefits	2016-01-01	231
Total of all active and inactive participants	2016-01-01	988
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2016-01-01	4
Total participants	2016-01-01	992
Number of participants with account balances	2016-01-01	856
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2016-01-01	0
2015: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2015 401k membership
Total participants, beginning-of-year	2015-01-01	1,097
Total number of active participants reported on line 7a of the Form 5500	2015-01-01	850
Number of retired or separated participants receiving benefits	2015-01-01	18
Number of other retired or separated participants entitled to future benefits	2015-01-01	236
Total of all active and inactive participants	2015-01-01	1,104
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2015-01-01	3
Total participants	2015-01-01	1,107
Number of participants with account balances	2015-01-01	902
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2015-01-01	0
2014: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2014 401k membership
Total participants, beginning-of-year	2014-01-01	1,127
Total number of active participants reported on line 7a of the Form 5500	2014-01-01	892
Number of retired or separated participants receiving benefits	2014-01-01	13
Number of other retired or separated participants entitled to future benefits	2014-01-01	191
Total of all active and inactive participants	2014-01-01	1,096
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2014-01-01	1
Total participants	2014-01-01	1,097
Number of participants with account balances	2014-01-01	953
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2014-01-01	0
2013: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2013 401k membership
Total participants, beginning-of-year	2013-01-01	1,134
Total number of active participants reported on line 7a of the Form 5500	2013-01-01	941
Number of retired or separated participants receiving benefits	2013-01-01	12
Number of other retired or separated participants entitled to future benefits	2013-01-01	173
Total of all active and inactive participants	2013-01-01	1,126
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2013-01-01	1
Total participants	2013-01-01	1,127
Number of participants with account balances	2013-01-01	970
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2013-01-01	0
2012: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2012 401k membership
Total participants, beginning-of-year	2012-01-01	1,431
Total number of active participants reported on line 7a of the Form 5500	2012-01-01	920
Number of retired or separated participants receiving benefits	2012-01-01	13
Number of other retired or separated participants entitled to future benefits	2012-01-01	200
Total of all active and inactive participants	2012-01-01	1,133
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2012-01-01	1
Total participants	2012-01-01	1,134
Number of participants with account balances	2012-01-01	1,046
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2012-01-01	0
2011: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2011 401k membership
Total participants, beginning-of-year	2011-01-01	1,384
Total number of active participants reported on line 7a of the Form 5500	2011-01-01	1,203
Number of retired or separated participants receiving benefits	2011-01-01	11
Number of other retired or separated participants entitled to future benefits	2011-01-01	216
Total of all active and inactive participants	2011-01-01	1,430
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2011-01-01	1
Total participants	2011-01-01	1,431
Number of participants with account balances	2011-01-01	1,128
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2011-01-01	31
2010: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2010 401k membership
Total participants, beginning-of-year	2010-01-01	1,285
Total number of active participants reported on line 7a of the Form 5500	2010-01-01	1,131
Number of retired or separated participants receiving benefits	2010-01-01	7
Number of other retired or separated participants entitled to future benefits	2010-01-01	246
Total of all active and inactive participants	2010-01-01	1,384
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2010-01-01	0
Total participants	2010-01-01	1,384
Number of participants with account balances	2010-01-01	803
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2010-01-01	46
2009: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2009 401k membership
Total participants, beginning-of-year	2009-01-01	1,085
Total number of active participants reported on line 7a of the Form 5500	2009-01-01	1,038
Number of retired or separated participants receiving benefits	2009-01-01	6
Number of other retired or separated participants entitled to future benefits	2009-01-01	241
Total of all active and inactive participants	2009-01-01	1,285
Number of deceased participants whose beneficiaries are receiving or are entitled to receive benefits	2009-01-01	0
Total participants	2009-01-01	1,285
Number of participants with account balances	2009-01-01	804
Participants that terminated employment during the plan year with accrued benefits that were less than 100% vested	2009-01-01	32

Financial Data on WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP)

Measure	Date	Value
2022 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2022 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2022-12-31	$298,440
Total unrealized appreciation/depreciation of assets	2022-12-31	$298,440
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2022-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2022-12-31	$0
Total income from all sources (including contributions)	2022-12-31	$-5,883,589
Total loss/gain on sale of assets	2022-12-31	$26,090
Total of all expenses incurred	2022-12-31	$9,079,513
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2022-12-31	$9,050,482
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2022-12-31	$2,538,701
Value of total assets at end of year	2022-12-31	$54,922,383
Value of total assets at beginning of year	2022-12-31	$69,885,485
Total of administrative expenses incurred including professional, contract, advisory and management fees	2022-12-31	$29,031
Total interest from all sources	2022-12-31	$27,369
Total dividends received (eg from common stock, registered investment company shares)	2022-12-31	$1,849,643
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2022-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2022-12-31	$1,373,792
Was this plan covered by a fidelity bond	2022-12-31	Yes
Value of fidelity bond cover	2022-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2022-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2022-12-31	No
Contributions received from participants	2022-12-31	$1,584,309
Participant contributions at end of year	2022-12-31	$538,417
Participant contributions at beginning of year	2022-12-31	$624,430
Income. Received or receivable in cash from other sources (including rollovers)	2022-12-31	$11,550
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2022-12-31	$5,581
Administrative expenses (other) incurred	2022-12-31	$29,031
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2022-12-31	No
Value of net income/loss	2022-12-31	$-14,963,102
Value of net assets at end of year (total assets less liabilities)	2022-12-31	$54,922,383
Value of net assets at beginning of year (total assets less liabilities)	2022-12-31	$69,885,485
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2022-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2022-12-31	No
Were any leases to which the plan was party in default or uncollectible	2022-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2022-12-31	$37,587,537
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2022-12-31	$52,828,708
Interest on participant loans	2022-12-31	$27,369
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2022-12-31	$-10,623,832
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2022-12-31	No
Was there a failure to transmit to the plan any participant contributions	2022-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2022-12-31	No
Assets. Invements in employer securities at end of year	2022-12-31	$16,796,429
Assets. Invements in employer securities at beginning of year	2022-12-31	$16,432,347
Contributions received in cash from employer	2022-12-31	$942,842
Income. Dividends from common stock	2022-12-31	$475,851
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2022-12-31	$9,044,901
Did the plan have assets held for investment	2022-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2022-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2022-12-31	No
Aggregate proceeds on sale of assets	2022-12-31	$1,928,897
Aggregate carrying amount (costs) on sale of assets	2022-12-31	$1,902,807
Opinion of an independent qualified public accountant for this plan	2022-12-31	Unqualified
Accountancy firm name	2022-12-31	CROWE LLP
Accountancy firm EIN	2022-12-31	350921680
2021 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2021 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2021-12-31	$571,497
Total unrealized appreciation/depreciation of assets	2021-12-31	$571,497
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2021-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2021-12-31	$0
Total income from all sources (including contributions)	2021-12-31	$10,550,221
Total loss/gain on sale of assets	2021-12-31	$138,811
Total of all expenses incurred	2021-12-31	$5,612,162
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2021-12-31	$5,582,609
Expenses. Certain deemed distributions of participant loans	2021-12-31	$1,189
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2021-12-31	$2,704,760
Value of total assets at end of year	2021-12-31	$69,885,485
Value of total assets at beginning of year	2021-12-31	$64,947,426
Total of administrative expenses incurred including professional, contract, advisory and management fees	2021-12-31	$28,364
Total interest from all sources	2021-12-31	$37,199
Total dividends received (eg from common stock, registered investment company shares)	2021-12-31	$2,857,043
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2021-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2021-12-31	$2,394,004
Was this plan covered by a fidelity bond	2021-12-31	Yes
Value of fidelity bond cover	2021-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2021-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2021-12-31	No
Contributions received from participants	2021-12-31	$1,674,628
Participant contributions at end of year	2021-12-31	$624,430
Participant contributions at beginning of year	2021-12-31	$809,906
Income. Received or receivable in cash from other sources (including rollovers)	2021-12-31	$19,281
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2021-12-31	$991
Other income not declared elsewhere	2021-12-31	$10,954
Administrative expenses (other) incurred	2021-12-31	$28,364
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2021-12-31	No
Value of net income/loss	2021-12-31	$4,938,059
Value of net assets at end of year (total assets less liabilities)	2021-12-31	$69,885,485
Value of net assets at beginning of year (total assets less liabilities)	2021-12-31	$64,947,426
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2021-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2021-12-31	No
Were any leases to which the plan was party in default or uncollectible	2021-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2021-12-31	$52,828,708
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2021-12-31	$48,082,912
Interest on participant loans	2021-12-31	$37,199
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2021-12-31	$4,229,957
Net investment gain or loss from common/collective trusts	2021-12-31	$0
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2021-12-31	No
Was there a failure to transmit to the plan any participant contributions	2021-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2021-12-31	No
Assets. Invements in employer securities at end of year	2021-12-31	$16,432,347
Assets. Invements in employer securities at beginning of year	2021-12-31	$16,054,608
Contributions received in cash from employer	2021-12-31	$1,010,851
Income. Dividends from common stock	2021-12-31	$463,039
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2021-12-31	$5,581,618
Did the plan have assets held for investment	2021-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2021-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2021-12-31	No
Aggregate proceeds on sale of assets	2021-12-31	$1,979,614
Aggregate carrying amount (costs) on sale of assets	2021-12-31	$1,840,803
Opinion of an independent qualified public accountant for this plan	2021-12-31	Unqualified
Accountancy firm name	2021-12-31	CROWE LLP
Accountancy firm EIN	2021-12-31	350921680
2020 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2020 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2020-12-31	$-3,455,768
Total unrealized appreciation/depreciation of assets	2020-12-31	$-3,455,768
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2020-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2020-12-31	$0
Total income from all sources (including contributions)	2020-12-31	$6,901,589
Total loss/gain on sale of assets	2020-12-31	$-254,977
Total of all expenses incurred	2020-12-31	$5,639,963
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2020-12-31	$5,614,178
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2020-12-31	$2,992,845
Value of total assets at end of year	2020-12-31	$64,947,426
Value of total assets at beginning of year	2020-12-31	$63,685,800
Total of administrative expenses incurred including professional, contract, advisory and management fees	2020-12-31	$25,785
Total interest from all sources	2020-12-31	$46,252
Total dividends received (eg from common stock, registered investment company shares)	2020-12-31	$1,764,159
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2020-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2020-12-31	$1,292,125
Was this plan covered by a fidelity bond	2020-12-31	Yes
Value of fidelity bond cover	2020-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2020-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2020-12-31	No
Contributions received from participants	2020-12-31	$1,683,351
Participant contributions at end of year	2020-12-31	$809,906
Participant contributions at beginning of year	2020-12-31	$839,506
Income. Received or receivable in cash from other sources (including rollovers)	2020-12-31	$275,469
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2020-12-31	$195
Other income not declared elsewhere	2020-12-31	$565
Administrative expenses (other) incurred	2020-12-31	$25,785
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2020-12-31	No
Value of net income/loss	2020-12-31	$1,261,626
Value of net assets at end of year (total assets less liabilities)	2020-12-31	$64,947,426
Value of net assets at beginning of year (total assets less liabilities)	2020-12-31	$63,685,800
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2020-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2020-12-31	No
Were any leases to which the plan was party in default or uncollectible	2020-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2020-12-31	$48,082,912
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2020-12-31	$43,042,219
Interest on participant loans	2020-12-31	$46,252
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2020-12-31	$5,808,513
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2020-12-31	No
Was there a failure to transmit to the plan any participant contributions	2020-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2020-12-31	No
Assets. Invements in employer securities at end of year	2020-12-31	$16,054,608
Assets. Invements in employer securities at beginning of year	2020-12-31	$19,804,075
Contributions received in cash from employer	2020-12-31	$1,034,025
Income. Dividends from common stock	2020-12-31	$472,034
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2020-12-31	$5,613,983
Did the plan have assets held for investment	2020-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2020-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2020-12-31	No
Aggregate proceeds on sale of assets	2020-12-31	$-2,174,785
Aggregate carrying amount (costs) on sale of assets	2020-12-31	$-1,919,808
Opinion of an independent qualified public accountant for this plan	2020-12-31	Unqualified
Accountancy firm name	2020-12-31	CROWE LLP
Accountancy firm EIN	2020-12-31	350921680
2019 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2019 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2019-12-31	$3,145,927
Total unrealized appreciation/depreciation of assets	2019-12-31	$3,145,927
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2019-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2019-12-31	$0
Total income from all sources (including contributions)	2019-12-31	$15,355,015
Total loss/gain on sale of assets	2019-12-31	$791,625
Total of all expenses incurred	2019-12-31	$8,800,438
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2019-12-31	$8,778,135
Expenses. Certain deemed distributions of participant loans	2019-12-31	$1,996
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2019-12-31	$2,952,963
Value of total assets at end of year	2019-12-31	$63,685,800
Value of total assets at beginning of year	2019-12-31	$57,131,223
Total of administrative expenses incurred including professional, contract, advisory and management fees	2019-12-31	$20,307
Total interest from all sources	2019-12-31	$49,476
Total dividends received (eg from common stock, registered investment company shares)	2019-12-31	$2,265,980
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2019-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2019-12-31	$1,721,320
Was this plan covered by a fidelity bond	2019-12-31	Yes
Value of fidelity bond cover	2019-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2019-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2019-12-31	No
Contributions received from participants	2019-12-31	$1,670,917
Participant contributions at end of year	2019-12-31	$839,506
Participant contributions at beginning of year	2019-12-31	$950,185
Income. Received or receivable in cash from other sources (including rollovers)	2019-12-31	$252,762
Other income not declared elsewhere	2019-12-31	$1,407
Administrative expenses (other) incurred	2019-12-31	$20,307
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2019-12-31	No
Value of net income/loss	2019-12-31	$6,554,577
Value of net assets at end of year (total assets less liabilities)	2019-12-31	$63,685,800
Value of net assets at beginning of year (total assets less liabilities)	2019-12-31	$57,131,223
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2019-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2019-12-31	No
Were any leases to which the plan was party in default or uncollectible	2019-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2019-12-31	$43,042,219
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2019-12-31	$37,075,609
Interest on participant loans	2019-12-31	$49,476
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2019-12-31	$6,147,637
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2019-12-31	No
Was there a failure to transmit to the plan any participant contributions	2019-12-31	No
Has the plan failed to provide any benefit when due under the plan	2019-12-31	No
Assets. Invements in employer securities at end of year	2019-12-31	$19,804,075
Assets. Invements in employer securities at beginning of year	2019-12-31	$19,105,429
Contributions received in cash from employer	2019-12-31	$1,029,284
Income. Dividends from common stock	2019-12-31	$544,660
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2019-12-31	$8,778,135
Did the plan have assets held for investment	2019-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2019-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2019-12-31	No
Aggregate proceeds on sale of assets	2019-12-31	$5,074,273
Aggregate carrying amount (costs) on sale of assets	2019-12-31	$4,282,648
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2019-12-31	No
Opinion of an independent qualified public accountant for this plan	2019-12-31	Unqualified
Accountancy firm name	2019-12-31	CROWE LLP
Accountancy firm EIN	2019-12-31	350921680
2018 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2018 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2018-12-31	$-1,433,080
Total unrealized appreciation/depreciation of assets	2018-12-31	$-1,433,080
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2018-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2018-12-31	$0
Total income from all sources (including contributions)	2018-12-31	$361,545
Total loss/gain on sale of assets	2018-12-31	$17,133
Total of all expenses incurred	2018-12-31	$7,123,053
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2018-12-31	$7,110,720
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2018-12-31	$2,853,580
Value of total assets at end of year	2018-12-31	$57,131,223
Value of total assets at beginning of year	2018-12-31	$63,892,731
Total of administrative expenses incurred including professional, contract, advisory and management fees	2018-12-31	$12,333
Total interest from all sources	2018-12-31	$49,413
Total dividends received (eg from common stock, registered investment company shares)	2018-12-31	$2,040,641
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2018-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2018-12-31	$1,476,524
Was this plan covered by a fidelity bond	2018-12-31	Yes
Value of fidelity bond cover	2018-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2018-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2018-12-31	No
Contributions received from participants	2018-12-31	$1,743,151
Participant contributions at end of year	2018-12-31	$950,185
Participant contributions at beginning of year	2018-12-31	$1,026,607
Income. Received or receivable in cash from other sources (including rollovers)	2018-12-31	$11,635
Other income not declared elsewhere	2018-12-31	$336
Administrative expenses (other) incurred	2018-12-31	$12,333
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2018-12-31	No
Value of net income/loss	2018-12-31	$-6,761,508
Value of net assets at end of year (total assets less liabilities)	2018-12-31	$57,131,223
Value of net assets at beginning of year (total assets less liabilities)	2018-12-31	$63,892,731
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2018-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2018-12-31	No
Were any leases to which the plan was party in default or uncollectible	2018-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2018-12-31	$37,075,609
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2018-12-31	$41,521,040
Interest on participant loans	2018-12-31	$49,413
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2018-12-31	$-3,166,478
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2018-12-31	No
Was there a failure to transmit to the plan any participant contributions	2018-12-31	No
Has the plan failed to provide any benefit when due under the plan	2018-12-31	No
Assets. Invements in employer securities at end of year	2018-12-31	$19,105,429
Assets. Invements in employer securities at beginning of year	2018-12-31	$21,345,084
Contributions received in cash from employer	2018-12-31	$1,098,794
Income. Dividends from common stock	2018-12-31	$564,117
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2018-12-31	$7,110,720
Did the plan have assets held for investment	2018-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2018-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2018-12-31	No
Aggregate proceeds on sale of assets	2018-12-31	$2,748,270
Aggregate carrying amount (costs) on sale of assets	2018-12-31	$2,731,137
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2018-12-31	No
Opinion of an independent qualified public accountant for this plan	2018-12-31	Unqualified
Accountancy firm name	2018-12-31	CROWE LLP
Accountancy firm EIN	2018-12-31	350921680
2017 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2017 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2017-12-31	$-1,038,965
Total unrealized appreciation/depreciation of assets	2017-12-31	$-1,038,965
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2017-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2017-12-31	$0
Total income from all sources (including contributions)	2017-12-31	$8,264,050
Total loss/gain on sale of assets	2017-12-31	$-325,281
Total of all expenses incurred	2017-12-31	$3,999,727
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2017-12-31	$3,990,057
Expenses. Certain deemed distributions of participant loans	2017-12-31	$-1,969
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2017-12-31	$3,045,325
Value of total assets at end of year	2017-12-31	$63,892,731
Value of total assets at beginning of year	2017-12-31	$59,628,408
Total of administrative expenses incurred including professional, contract, advisory and management fees	2017-12-31	$11,639
Total interest from all sources	2017-12-31	$45,885
Total dividends received (eg from common stock, registered investment company shares)	2017-12-31	$1,844,302
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2017-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2017-12-31	$1,268,494
Was this plan covered by a fidelity bond	2017-12-31	Yes
Value of fidelity bond cover	2017-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2017-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2017-12-31	No
Contributions received from participants	2017-12-31	$1,779,601
Participant contributions at end of year	2017-12-31	$1,026,607
Participant contributions at beginning of year	2017-12-31	$943,385
Income. Received or receivable in cash from other sources (including rollovers)	2017-12-31	$128,327
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2017-12-31	$1,655
Other income not declared elsewhere	2017-12-31	$9,366
Administrative expenses (other) incurred	2017-12-31	$11,639
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2017-12-31	No
Value of net income/loss	2017-12-31	$4,264,323
Value of net assets at end of year (total assets less liabilities)	2017-12-31	$63,892,731
Value of net assets at beginning of year (total assets less liabilities)	2017-12-31	$59,628,408
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2017-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2017-12-31	No
Were any leases to which the plan was party in default or uncollectible	2017-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2017-12-31	$41,521,040
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2017-12-31	$35,042,950
Interest on participant loans	2017-12-31	$45,885
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2017-12-31	$4,683,418
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2017-12-31	No
Was there a failure to transmit to the plan any participant contributions	2017-12-31	No
Has the plan failed to provide any benefit when due under the plan	2017-12-31	No
Assets. Invements in employer securities at end of year	2017-12-31	$21,345,084
Assets. Invements in employer securities at beginning of year	2017-12-31	$23,642,073
Contributions received in cash from employer	2017-12-31	$1,137,397
Income. Dividends from common stock	2017-12-31	$575,808
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2017-12-31	$3,988,402
Did the plan have assets held for investment	2017-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2017-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2017-12-31	No
Aggregate proceeds on sale of assets	2017-12-31	$2,687,422
Aggregate carrying amount (costs) on sale of assets	2017-12-31	$3,012,703
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2017-12-31	No
Opinion of an independent qualified public accountant for this plan	2017-12-31	Unqualified
Accountancy firm name	2017-12-31	CROWE HORWATH LLP
Accountancy firm EIN	2017-12-31	350921680
2016 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2016 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2016-12-31	$5,950,064
Total unrealized appreciation/depreciation of assets	2016-12-31	$5,950,064
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2016-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2016-12-31	$0
Total income from all sources (including contributions)	2016-12-31	$12,096,570
Total loss/gain on sale of assets	2016-12-31	$262,513
Total of all expenses incurred	2016-12-31	$4,344,663
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2016-12-31	$4,294,884
Expenses. Certain deemed distributions of participant loans	2016-12-31	$38,750
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2016-12-31	$2,895,971
Value of total assets at end of year	2016-12-31	$59,628,408
Value of total assets at beginning of year	2016-12-31	$51,876,501
Total of administrative expenses incurred including professional, contract, advisory and management fees	2016-12-31	$11,029
Total interest from all sources	2016-12-31	$42,171
Total dividends received (eg from common stock, registered investment company shares)	2016-12-31	$1,567,785
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2016-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2016-12-31	$969,240
Was this plan covered by a fidelity bond	2016-12-31	Yes
Value of fidelity bond cover	2016-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2016-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2016-12-31	No
Contributions received from participants	2016-12-31	$1,752,735
Participant contributions at end of year	2016-12-31	$943,385
Participant contributions at beginning of year	2016-12-31	$1,130,679
Income. Received or receivable in cash from other sources (including rollovers)	2016-12-31	$32,423
Other income not declared elsewhere	2016-12-31	$1,697
Administrative expenses (other) incurred	2016-12-31	$11,029
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2016-12-31	No
Value of net income/loss	2016-12-31	$7,751,907
Value of net assets at end of year (total assets less liabilities)	2016-12-31	$59,628,408
Value of net assets at beginning of year (total assets less liabilities)	2016-12-31	$51,876,501
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2016-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2016-12-31	No
Were any leases to which the plan was party in default or uncollectible	2016-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2016-12-31	$35,042,950
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2016-12-31	$32,612,826
Interest on participant loans	2016-12-31	$42,171
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2016-12-31	$1,376,369
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2016-12-31	No
Was there a failure to transmit to the plan any participant contributions	2016-12-31	No
Has the plan failed to provide any benefit when due under the plan	2016-12-31	No
Assets. Invements in employer securities at end of year	2016-12-31	$23,642,073
Assets. Invements in employer securities at beginning of year	2016-12-31	$18,132,996
Contributions received in cash from employer	2016-12-31	$1,110,813
Income. Dividends from common stock	2016-12-31	$598,545
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2016-12-31	$4,294,884
Did the plan have assets held for investment	2016-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2016-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2016-12-31	No
Aggregate proceeds on sale of assets	2016-12-31	$2,442,597
Aggregate carrying amount (costs) on sale of assets	2016-12-31	$2,180,084
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2016-12-31	No
Opinion of an independent qualified public accountant for this plan	2016-12-31	Unqualified
Accountancy firm name	2016-12-31	CROWE HORWATH LLP
Accountancy firm EIN	2016-12-31	350921680
2015 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2015 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2015-12-31	$-827,620
Total unrealized appreciation/depreciation of assets	2015-12-31	$-827,620
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2015-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2015-12-31	$0
Total income from all sources (including contributions)	2015-12-31	$2,635,692
Total loss/gain on sale of assets	2015-12-31	$-268,844
Total of all expenses incurred	2015-12-31	$7,301,668
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2015-12-31	$7,288,204
Expenses. Certain deemed distributions of participant loans	2015-12-31	$4,176
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2015-12-31	$3,037,467
Value of total assets at end of year	2015-12-31	$51,876,501
Value of total assets at beginning of year	2015-12-31	$56,542,477
Total of administrative expenses incurred including professional, contract, advisory and management fees	2015-12-31	$9,288
Total interest from all sources	2015-12-31	$45,661
Total dividends received (eg from common stock, registered investment company shares)	2015-12-31	$1,876,356
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2015-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2015-12-31	$1,244,768
Was this plan covered by a fidelity bond	2015-12-31	Yes
Value of fidelity bond cover	2015-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2015-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2015-12-31	No
Contributions received from participants	2015-12-31	$1,825,469
Participant contributions at end of year	2015-12-31	$1,130,679
Participant contributions at beginning of year	2015-12-31	$1,060,161
Income. Received or receivable in cash from other sources (including rollovers)	2015-12-31	$24,926
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2015-12-31	$382
Other income not declared elsewhere	2015-12-31	$169
Administrative expenses (other) incurred	2015-12-31	$9,288
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2015-12-31	No
Value of net income/loss	2015-12-31	$-4,665,976
Value of net assets at end of year (total assets less liabilities)	2015-12-31	$51,876,501
Value of net assets at beginning of year (total assets less liabilities)	2015-12-31	$56,542,477
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2015-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2015-12-31	No
Were any leases to which the plan was party in default or uncollectible	2015-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2015-12-31	$32,612,826
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2015-12-31	$34,195,376
Interest on participant loans	2015-12-31	$45,661
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2015-12-31	$-1,227,497
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2015-12-31	No
Was there a failure to transmit to the plan any participant contributions	2015-12-31	Yes
Has the plan failed to provide any benefit when due under the plan	2015-12-31	No
Assets. Invements in employer securities at end of year	2015-12-31	$18,132,996
Assets. Invements in employer securities at beginning of year	2015-12-31	$21,286,940
Contributions received in cash from employer	2015-12-31	$1,187,072
Income. Dividends from common stock	2015-12-31	$631,588
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2015-12-31	$7,287,822
Did the plan have assets held for investment	2015-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2015-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2015-12-31	No
Aggregate proceeds on sale of assets	2015-12-31	$-3,993,241
Aggregate carrying amount (costs) on sale of assets	2015-12-31	$-3,724,397
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2015-12-31	No
Opinion of an independent qualified public accountant for this plan	2015-12-31	Unqualified
Accountancy firm name	2015-12-31	CROWE HORWATH LLP
Accountancy firm EIN	2015-12-31	350921680
2014 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2014 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2014-12-31	$-3,047,059
Total unrealized appreciation/depreciation of assets	2014-12-31	$-3,047,059
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2014-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2014-12-31	$0
Total income from all sources (including contributions)	2014-12-31	$2,932,357
Total loss/gain on sale of assets	2014-12-31	$-269,641
Total of all expenses incurred	2014-12-31	$3,750,438
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2014-12-31	$3,708,082
Expenses. Certain deemed distributions of participant loans	2014-12-31	$33,919
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2014-12-31	$3,278,173
Value of total assets at end of year	2014-12-31	$56,542,477
Value of total assets at beginning of year	2014-12-31	$57,360,558
Total of administrative expenses incurred including professional, contract, advisory and management fees	2014-12-31	$8,437
Total interest from all sources	2014-12-31	$47,099
Total dividends received (eg from common stock, registered investment company shares)	2014-12-31	$1,726,274
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2014-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2014-12-31	$1,060,137
Was this plan covered by a fidelity bond	2014-12-31	Yes
Value of fidelity bond cover	2014-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2014-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2014-12-31	No
Contributions received from participants	2014-12-31	$1,861,847
Participant contributions at end of year	2014-12-31	$1,060,161
Participant contributions at beginning of year	2014-12-31	$1,171,226
Income. Received or receivable in cash from other sources (including rollovers)	2014-12-31	$223,976
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2014-12-31	$9,883
Other income not declared elsewhere	2014-12-31	$1,965
Administrative expenses (other) incurred	2014-12-31	$8,437
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2014-12-31	No
Value of net income/loss	2014-12-31	$-818,081
Value of net assets at end of year (total assets less liabilities)	2014-12-31	$56,542,477
Value of net assets at beginning of year (total assets less liabilities)	2014-12-31	$57,360,558
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2014-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2014-12-31	No
Were any leases to which the plan was party in default or uncollectible	2014-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2014-12-31	$34,195,376
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2014-12-31	$31,093,288
Interest on participant loans	2014-12-31	$47,099
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2014-12-31	$1,195,546
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2014-12-31	No
Was there a failure to transmit to the plan any participant contributions	2014-12-31	No
Has the plan failed to provide any benefit when due under the plan	2014-12-31	No
Assets. Invements in employer securities at end of year	2014-12-31	$21,286,940
Assets. Invements in employer securities at beginning of year	2014-12-31	$25,096,044
Contributions received in cash from employer	2014-12-31	$1,192,350
Income. Dividends from common stock	2014-12-31	$666,137
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2014-12-31	$3,698,199
Did the plan have assets held for investment	2014-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2014-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2014-12-31	No
Aggregate proceeds on sale of assets	2014-12-31	$2,603,352
Aggregate carrying amount (costs) on sale of assets	2014-12-31	$2,872,993
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2014-12-31	No
Opinion of an independent qualified public accountant for this plan	2014-12-31	Unqualified
Accountancy firm name	2014-12-31	CROWE HORWATH LLP
Accountancy firm EIN	2014-12-31	350921680
2013 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2013 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2013-12-31	$5,931,341
Total unrealized appreciation/depreciation of assets	2013-12-31	$5,931,341
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2013-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2013-12-31	$0
Total income from all sources (including contributions)	2013-12-31	$15,165,456
Total loss/gain on sale of assets	2013-12-31	$366,716
Total of all expenses incurred	2013-12-31	$7,092,781
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2013-12-31	$7,075,573
Expenses. Certain deemed distributions of participant loans	2013-12-31	$8,095
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2013-12-31	$3,194,909
Value of total assets at end of year	2013-12-31	$57,360,558
Value of total assets at beginning of year	2013-12-31	$49,287,883
Total of administrative expenses incurred including professional, contract, advisory and management fees	2013-12-31	$9,113
Total interest from all sources	2013-12-31	$50,867
Total dividends received (eg from common stock, registered investment company shares)	2013-12-31	$1,364,096
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2013-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2013-12-31	$682,825
Was this plan covered by a fidelity bond	2013-12-31	Yes
Value of fidelity bond cover	2013-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2013-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2013-12-31	No
Contributions received from participants	2013-12-31	$1,866,695
Participant contributions at end of year	2013-12-31	$1,171,226
Participant contributions at beginning of year	2013-12-31	$1,254,185
Participant contributions at end of year	2013-12-31	$0
Participant contributions at beginning of year	2013-12-31	$4,114
Income. Received or receivable in cash from other sources (including rollovers)	2013-12-31	$113,313
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2013-12-31	$2,404
Other income not declared elsewhere	2013-12-31	$3,603
Administrative expenses (other) incurred	2013-12-31	$9,113
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2013-12-31	No
Value of net income/loss	2013-12-31	$8,072,675
Value of net assets at end of year (total assets less liabilities)	2013-12-31	$57,360,558
Value of net assets at beginning of year (total assets less liabilities)	2013-12-31	$49,287,883
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2013-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2013-12-31	No
Were any leases to which the plan was party in default or uncollectible	2013-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2013-12-31	$31,093,288
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2013-12-31	$27,943,126
Interest on participant loans	2013-12-31	$50,867
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2013-12-31	$4,253,924
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2013-12-31	No
Was there a failure to transmit to the plan any participant contributions	2013-12-31	No
Has the plan failed to provide any benefit when due under the plan	2013-12-31	No
Assets. Invements in employer securities at end of year	2013-12-31	$25,096,044
Assets. Invements in employer securities at beginning of year	2013-12-31	$20,085,152
Contributions received in cash from employer	2013-12-31	$1,214,901
Employer contributions (assets) at end of year	2013-12-31	$0
Employer contributions (assets) at beginning of year	2013-12-31	$1,306
Income. Dividends from common stock	2013-12-31	$681,271
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2013-12-31	$7,073,169
Did the plan have assets held for investment	2013-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2013-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2013-12-31	No
Aggregate proceeds on sale of assets	2013-12-31	$3,384,182
Aggregate carrying amount (costs) on sale of assets	2013-12-31	$3,017,466
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2013-12-31	No
Opinion of an independent qualified public accountant for this plan	2013-12-31	Unqualified
Accountancy firm name	2013-12-31	CROWE HORWATH LLP
Accountancy firm EIN	2013-12-31	350921680
2012 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2012 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2012-12-31	$-755,795
Total unrealized appreciation/depreciation of assets	2012-12-31	$-755,795
Total transfer of assets to this plan	2012-12-31	$164
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2012-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2012-12-31	$0
Total income from all sources (including contributions)	2012-12-31	$6,132,601
Total loss/gain on sale of assets	2012-12-31	$79,579
Total of all expenses incurred	2012-12-31	$4,242,235
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2012-12-31	$4,231,775
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2012-12-31	$3,256,664
Value of total assets at end of year	2012-12-31	$49,287,883
Value of total assets at beginning of year	2012-12-31	$47,397,353
Total of administrative expenses incurred including professional, contract, advisory and management fees	2012-12-31	$10,460
Total interest from all sources	2012-12-31	$60,132
Total dividends received (eg from common stock, registered investment company shares)	2012-12-31	$1,220,508
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2012-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2012-12-31	$537,373
Was this plan covered by a fidelity bond	2012-12-31	Yes
Value of fidelity bond cover	2012-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2012-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2012-12-31	No
Contributions received from participants	2012-12-31	$1,950,524
Participant contributions at end of year	2012-12-31	$1,254,185
Participant contributions at beginning of year	2012-12-31	$1,462,301
Participant contributions at end of year	2012-12-31	$4,114
Participant contributions at beginning of year	2012-12-31	$73,982
Income. Received or receivable in cash from other sources (including rollovers)	2012-12-31	$47,829
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2012-12-31	$733
Administrative expenses (other) incurred	2012-12-31	$10,460
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2012-12-31	No
Value of net income/loss	2012-12-31	$1,890,366
Value of net assets at end of year (total assets less liabilities)	2012-12-31	$49,287,883
Value of net assets at beginning of year (total assets less liabilities)	2012-12-31	$47,397,353
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2012-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2012-12-31	No
Were any leases to which the plan was party in default or uncollectible	2012-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2012-12-31	$27,943,126
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2012-12-31	$25,712,603
Interest on participant loans	2012-12-31	$60,132
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2012-12-31	$2,271,513
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2012-12-31	No
Was there a failure to transmit to the plan any participant contributions	2012-12-31	No
Has the plan failed to provide any benefit when due under the plan	2012-12-31	No
Assets. Invements in employer securities at end of year	2012-12-31	$20,085,152
Assets. Invements in employer securities at beginning of year	2012-12-31	$20,097,666
Contributions received in cash from employer	2012-12-31	$1,258,311
Employer contributions (assets) at end of year	2012-12-31	$1,306
Employer contributions (assets) at beginning of year	2012-12-31	$50,801
Income. Dividends from common stock	2012-12-31	$683,135
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2012-12-31	$4,231,042
Did the plan have assets held for investment	2012-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2012-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2012-12-31	No
Aggregate proceeds on sale of assets	2012-12-31	$1,957,645
Aggregate carrying amount (costs) on sale of assets	2012-12-31	$1,878,066
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2012-12-31	No
Opinion of an independent qualified public accountant for this plan	2012-12-31	Unqualified
Accountancy firm name	2012-12-31	CROWE HORWATH LLP
Accountancy firm EIN	2012-12-31	350921680
2011 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2011 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2011-12-31	$-4,940,649
Total unrealized appreciation/depreciation of assets	2011-12-31	$-4,940,649
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2011-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2011-12-31	$0
Total income from all sources (including contributions)	2011-12-31	$-848,982
Total loss/gain on sale of assets	2011-12-31	$-730,308
Total of all expenses incurred	2011-12-31	$6,210,459
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2011-12-31	$6,190,947
Expenses. Certain deemed distributions of participant loans	2011-12-31	$776
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2011-12-31	$4,064,644
Value of total assets at end of year	2011-12-31	$47,397,353
Value of total assets at beginning of year	2011-12-31	$54,456,794
Total of administrative expenses incurred including professional, contract, advisory and management fees	2011-12-31	$18,736
Total interest from all sources	2011-12-31	$68,096
Total dividends received (eg from common stock, registered investment company shares)	2011-12-31	$1,196,569
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2011-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2011-12-31	$500,950
Was this plan covered by a fidelity bond	2011-12-31	Yes
Value of fidelity bond cover	2011-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2011-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2011-12-31	No
Contributions received from participants	2011-12-31	$2,048,759
Participant contributions at end of year	2011-12-31	$1,462,301
Participant contributions at beginning of year	2011-12-31	$1,424,113
Participant contributions at end of year	2011-12-31	$73,982
Income. Received or receivable in cash from other sources (including rollovers)	2011-12-31	$704,530
Expenses. Other payments made (not to insurance carriers or or participants/beneficiaries)	2011-12-31	$9,390
Administrative expenses (other) incurred	2011-12-31	$18,736
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2011-12-31	No
Value of net income/loss	2011-12-31	$-7,059,441
Value of net assets at end of year (total assets less liabilities)	2011-12-31	$47,397,353
Value of net assets at beginning of year (total assets less liabilities)	2011-12-31	$54,456,794
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2011-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2011-12-31	No
Were any leases to which the plan was party in default or uncollectible	2011-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2011-12-31	$25,712,603
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2011-12-31	$25,701,872
Interest on participant loans	2011-12-31	$68,096
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2011-12-31	$-507,334
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2011-12-31	No
Was there a failure to transmit to the plan any participant contributions	2011-12-31	No
Has the plan failed to provide any benefit when due under the plan	2011-12-31	No
Assets. Invements in employer securities at end of year	2011-12-31	$20,097,666
Assets. Invements in employer securities at beginning of year	2011-12-31	$27,330,809
Contributions received in cash from employer	2011-12-31	$1,311,355
Employer contributions (assets) at end of year	2011-12-31	$50,801
Income. Dividends from common stock	2011-12-31	$695,619
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2011-12-31	$6,181,557
Did the plan have assets held for investment	2011-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2011-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2011-12-31	No
Aggregate proceeds on sale of assets	2011-12-31	$4,016,818
Aggregate carrying amount (costs) on sale of assets	2011-12-31	$4,747,126
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2011-12-31	No
Opinion of an independent qualified public accountant for this plan	2011-12-31	Unqualified
Accountancy firm name	2011-12-31	CROWE HORWATH LLP
Accountancy firm EIN	2011-12-31	350921680
2010 : WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2010 401k financial data
Unrealized appreciation/depreciation of other (non real estate) assets	2010-12-31	$32,711
Total unrealized appreciation/depreciation of assets	2010-12-31	$32,711
Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2010-12-31	$0
Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities)	2010-12-31	$0
Total income from all sources (including contributions)	2010-12-31	$6,911,437
Total loss/gain on sale of assets	2010-12-31	$8,976
Total of all expenses incurred	2010-12-31	$4,491,950
Benefit payments and payments to participlants,beneficiaries,insurance carriers and others	2010-12-31	$4,474,375
Value of total corrective distributions	2010-12-31	$147
Total contributions o plan (from employers,participants, others, non cash contrinutions)	2010-12-31	$3,552,472
Value of total assets at end of year	2010-12-31	$54,456,794
Value of total assets at beginning of year	2010-12-31	$52,037,307
Total of administrative expenses incurred including professional, contract, advisory and management fees	2010-12-31	$17,428
Total interest from all sources	2010-12-31	$79,253
Total dividends received (eg from common stock, registered investment company shares)	2010-12-31	$1,139,447
Has a resolution to terminate the plan been adopted during the plan year or any prior plan year	2010-12-31	No
Total dividends received from registered investment company shares (eg mutual funds)	2010-12-31	$427,395
Was this plan covered by a fidelity bond	2010-12-31	Yes
Value of fidelity bond cover	2010-12-31	$20,000,000
If this is an individual account plan, was there a blackout period	2010-12-31	No
Were there any nonexempt tranactions with any party-in-interest	2010-12-31	No
Contributions received from participants	2010-12-31	$2,122,325
Participant contributions at end of year	2010-12-31	$1,424,113
Participant contributions at beginning of year	2010-12-31	$1,514,967
Participant contributions at beginning of year	2010-12-31	$4,473
Income. Received or receivable in cash from other sources (including rollovers)	2010-12-31	$52,718
Administrative expenses (other) incurred	2010-12-31	$17,428
Did the receive any noncash contributions whose value was neither redily determinable on an established market nor set by an independent third party appraiser	2010-12-31	No
Value of net income/loss	2010-12-31	$2,419,487
Value of net assets at end of year (total assets less liabilities)	2010-12-31	$54,456,794
Value of net assets at beginning of year (total assets less liabilities)	2010-12-31	$52,037,307
Did the plan have a loss casued by fraud or dishonesty (regardless whether reimbursed by fidelity bond)	2010-12-31	No
Were any loans by the plan or fixed income obligations due to the plan in default	2010-12-31	No
Were any leases to which the plan was party in default or uncollectible	2010-12-31	No
Value of interest in registered invesment companies (eg mutual funds) at end of year	2010-12-31	$25,701,872
Value of interest in registered invesment companies (eg mutual funds) at beginning of year	2010-12-31	$23,330,091
Interest on participant loans	2010-12-31	$79,253
Net investment gain/loss from registered investment companies (e.g. mutual funds)	2010-12-31	$2,098,578
Were any plan transactions or series of transactions in excess of 5% of the current value of the plan assets	2010-12-31	Yes
Was there a failure to transmit to the plan any participant contributions	2010-12-31	No
Has the plan failed to provide any benefit when due under the plan	2010-12-31	No
Assets. Invements in employer securities at end of year	2010-12-31	$27,330,809
Assets. Invements in employer securities at beginning of year	2010-12-31	$27,185,402
Contributions received in cash from employer	2010-12-31	$1,377,429
Employer contributions (assets) at beginning of year	2010-12-31	$2,374
Income. Dividends from common stock	2010-12-31	$712,052
Benefit payments and payments to provide benefits directly to participlants or beneficiaries including direct rollovers	2010-12-31	$4,474,375
Did the plan have assets held for investment	2010-12-31	Yes
Did the plan hold any assets whose current value was neither redily determinable on an established market nor set by an independent third party appraiser	2010-12-31	No
Were all the plan assets eitehr distributed to particpants/beneficiaries, transferred to another plan or brought under the control of the PBGC	2010-12-31	No
Aggregate proceeds on sale of assets	2010-12-31	$2,448,863
Aggregate carrying amount (costs) on sale of assets	2010-12-31	$2,439,887
Accountant perfomed limited scope audit pursuant to 29 CFR 2520.103-8 and/or 103-12(d)	2010-12-31	No
Opinion of an independent qualified public accountant for this plan	2010-12-31	Unqualified
Accountancy firm name	2010-12-31	PERRY-SMITH, LLP
Accountancy firm EIN	2010-12-31	680041802

Form 5500 Responses for WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP)

2022: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2022 form 5500 responses
2022-01-01	Type of plan entity	Single employer plan
2022-01-01	Submission has been amended	No
2022-01-01	This submission is the final filing	No
2022-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2022-01-01	Plan is a collectively bargained plan	No
2022-01-01	Plan funding arrangement – Trust	Yes
2022-01-01	Plan benefit arrangement - Trust	Yes
2021: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2021 form 5500 responses
2021-01-01	Type of plan entity	Single employer plan
2021-01-01	Submission has been amended	No
2021-01-01	This submission is the final filing	No
2021-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2021-01-01	Plan is a collectively bargained plan	No
2021-01-01	Plan funding arrangement – Trust	Yes
2021-01-01	Plan benefit arrangement - Trust	Yes
2020: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2020 form 5500 responses
2020-01-01	Type of plan entity	Single employer plan
2020-01-01	Submission has been amended	No
2020-01-01	This submission is the final filing	No
2020-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2020-01-01	Plan is a collectively bargained plan	No
2020-01-01	Plan funding arrangement – Trust	Yes
2020-01-01	Plan benefit arrangement - Trust	Yes
2019: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2019 form 5500 responses
2019-01-01	Type of plan entity	Single employer plan
2019-01-01	Submission has been amended	No
2019-01-01	This submission is the final filing	No
2019-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2019-01-01	Plan is a collectively bargained plan	No
2019-01-01	Plan funding arrangement – Trust	Yes
2019-01-01	Plan benefit arrangement - Trust	Yes
2018: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2018 form 5500 responses
2018-01-01	Type of plan entity	Single employer plan
2018-01-01	Submission has been amended	No
2018-01-01	This submission is the final filing	No
2018-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2018-01-01	Plan is a collectively bargained plan	No
2018-01-01	Plan funding arrangement – Trust	Yes
2018-01-01	Plan benefit arrangement - Trust	Yes
2017: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2017 form 5500 responses
2017-01-01	Type of plan entity	Single employer plan
2017-01-01	Submission has been amended	No
2017-01-01	This submission is the final filing	No
2017-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2017-01-01	Plan is a collectively bargained plan	No
2017-01-01	Plan funding arrangement – Trust	Yes
2017-01-01	Plan benefit arrangement - Trust	Yes
2016: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2016 form 5500 responses
2016-01-01	Type of plan entity	Single employer plan
2016-01-01	Submission has been amended	No
2016-01-01	This submission is the final filing	No
2016-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2016-01-01	Plan is a collectively bargained plan	No
2016-01-01	Plan funding arrangement – Trust	Yes
2016-01-01	Plan benefit arrangement - Trust	Yes
2015: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2015 form 5500 responses
2015-01-01	Type of plan entity	Single employer plan
2015-01-01	Submission has been amended	No
2015-01-01	This submission is the final filing	No
2015-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2015-01-01	Plan is a collectively bargained plan	No
2015-01-01	Plan funding arrangement – Trust	Yes
2015-01-01	Plan benefit arrangement - Trust	Yes
2014: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2014 form 5500 responses
2014-01-01	Type of plan entity	Single employer plan
2014-01-01	Submission has been amended	No
2014-01-01	This submission is the final filing	No
2014-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2014-01-01	Plan is a collectively bargained plan	No
2014-01-01	Plan funding arrangement – Trust	Yes
2014-01-01	Plan benefit arrangement - Trust	Yes
2013: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2013 form 5500 responses
2013-01-01	Type of plan entity	Single employer plan
2013-01-01	Submission has been amended	No
2013-01-01	This submission is the final filing	No
2013-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2013-01-01	Plan is a collectively bargained plan	No
2013-01-01	Plan funding arrangement – Trust	Yes
2013-01-01	Plan benefit arrangement - Trust	Yes
2012: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2012 form 5500 responses
2012-01-01	Type of plan entity	Single employer plan
2012-01-01	Submission has been amended	No
2012-01-01	This submission is the final filing	No
2012-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2012-01-01	Plan is a collectively bargained plan	No
2012-01-01	Plan funding arrangement – Trust	Yes
2012-01-01	Plan benefit arrangement - Trust	Yes
2011: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2011 form 5500 responses
2011-01-01	Type of plan entity	Single employer plan
2011-01-01	Submission has been amended	No
2011-01-01	This submission is the final filing	No
2011-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2011-01-01	Plan is a collectively bargained plan	No
2011-01-01	Plan funding arrangement – Trust	Yes
2011-01-01	Plan benefit arrangement - Trust	Yes
2010: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2010 form 5500 responses
2010-01-01	Type of plan entity	Single employer plan
2010-01-01	Submission has been amended	Yes
2010-01-01	This submission is the final filing	No
2010-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2010-01-01	Plan is a collectively bargained plan	No
2010-01-01	Plan funding arrangement – Trust	Yes
2010-01-01	Plan benefit arrangement - Trust	Yes
2009: WESTAMERICA BANCORPORATION TAX DEFERRED SAVINGS/ RETIREMENT PLAN (ESOP) 2009 form 5500 responses
2009-01-01	Type of plan entity	Single employer plan
2009-01-01	Submission has been amended	No
2009-01-01	This submission is the final filing	No
2009-01-01	This return/report is a short plan year return/report (less than 12 months)	No
2009-01-01	Plan is a collectively bargained plan	No
2009-01-01	Plan funding arrangement – Trust	Yes
2009-01-01	Plan benefit arrangement - Trust	Yes

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Company Name:	WESTAMERICA BANCORPORATION
Employer identification number (EIN):	942156203
NAIC Classification:	522110
NAIC Description:	Commercial Banking

Jurisdiction of Incorporation:	California Department of State
Incorporation Date:
Company Identification Number:	C0645328