Branch Locations

Branch Locations

Alameda County

Contra Costa County

Fresno County

Kern County

Kings County

Lake County

Madera County

Marin County

Mariposa County

Mendocino County

Merced County

Napa County

Nevada County

Sacramento County

San Francisco County

Solano County

Sonoma County

Stanislaus County

Tulare County

Tuolumne County

Corporate headquarters

Westamerica Bancorporation and Subsidiary Bank Headquarters

1108 Fifth Avenue

San Rafael, CA 94901

(415) 257-8000