<SEC-DOCUMENT>0001174947-17-000352-index.html : 20170313
<SEC-HEADER>0001174947-17-000352.hdr.sgml : 20170313
<ACCEPTANCE-DATETIME>20170313090032
ACCESSION NUMBER:		0001174947-17-000352
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		8
CONFORMED PERIOD OF REPORT:	20170427
FILED AS OF DATE:		20170313
DATE AS OF CHANGE:		20170313
EFFECTIVENESS DATE:		20170313

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESTAMERICA BANCORPORATION
		CENTRAL INDEX KEY:			0000311094
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				942156203
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09383
		FILM NUMBER:		17684129

	BUSINESS ADDRESS:	
		STREET 1:		1108 FIFTH AVE
		CITY:			SAN RAFAEL
		STATE:			CA
		ZIP:			94901
		BUSINESS PHONE:		(707) 863-6000

	MAIL ADDRESS:	
		STREET 1:		4550 MANGELS BLVD
		STREET 2:		A-2Y
		CITY:			FAIRFIELD
		STATE:			CA
		ZIP:			94585-1200

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INDEPENDENT BANKSHARES CORP
		DATE OF NAME CHANGE:	19830801
</SEC-HEADER>
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Document 1 - file: c461329_def14a.htm

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<DESCRIPTION>GRAPHIC
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Document 2 - file: pg1img1_def14a.jpg

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<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: pg1img2_def14a.jpg

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<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>pg2img1_def14a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: pg2img1_def14a.jpg

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<FILENAME>pg23img1_def14a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: pg23img1_def14a.jpg

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<FILENAME>pg45img1_def14a.jpg
<DESCRIPTION>GRAPHIC
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Document 6 - file: pg45img1_def14a.jpg

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<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>pg1img1_proxy.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: pg1img1_proxy.jpg

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<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>pg2img1_proxy.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: pg2img1_proxy.jpg

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