• Bank Name:Westamerica Bank
  • Bank Class:State Chartered - FED Member Bank
  • Member FDIC:Certificate #3430
  • Routing Number:N/A
  • Locations:77 Branches in California
  • Web Address:westamerica.com
Headquarters:1108 Fifth Avenue, San Rafael, California 94901


Westamerica Bank was founded in February 1884 and is based in San Rafael, California. The bank operates as a subsidiary of Westamerica Bancorporation. According to the Federal Deposit Insurance Corporation records and based on the institution's charter type, Westamerica Bank is classified as a commercial bank, state charter and Fed member, supervised by the Federal Reserve (FRB). Westamerica Bank is a FDIC-insured bank with certificate number of 3430. The assigned Fed RSSD ID of Westamerica Bank is 697763.

Westamerica Bank currently operates with 77 branches located in California. Westamerica Bank is the 12th largest bank in California. The bank does not have any offices outside California. As of today, Westamerica Bank is the 96th largest bank in US by branch count.

Bank routing number is a 9 digit code which is necessary to process Fedwire funds transfers, process direct deposits, bill payments, and other such automated transfers. We currently do not have a routing number for Westamerica Bank in our database.

The full address of bank headquarters is 1108 Fifth Avenue, San Rafael, CA 94901. You can visit the official website of the bank at https://www.westamerica.com for more information and online banking service if available. For a list of all Westamerica Bank branches and detailed branch information like hours of operation, phone number and address; please refine your search by selecting a location from the map or list.



3421 Broadway, Suite E2, American Canyon 94503
735 Bellevue Road, Atwater 95301
2130 Chester Avenue, Bakersfield 93301
20 Solano Square, Benicia 94510
1110 Washington Street, Calistoga 94515
1788 Mitchell Road Suite 104, Ceres 95307
15342 Lakeshore Drive, Clearlake 95422
536 Shaw Ave, Clovis 93612
1333 Willow Pass Road, Suite 100, Concord 94520
1507 Center Street, Dos Palos 93620
2400 Hilborn Road, Fairfield 94534
1312 P Street, Firebaugh 93622
2440 Tulare Street, Suite 110, Fresno 93721
1172 East Shaw Avenue, Fresno 93710
7032 North First Street, Fresno 93720
5751 South Elm Avenue, Fresno 93706
2150 West Shaw Ave, Fresno 93711
13751 Arnold Drive, Glen Ellen 95442
375 Brunswick Road, Grass Valley 95945
39225 Highway 1 South, Gualala 95445
16265 Main Street, Guerneville 95446
890 West Lacey Boulevard, Hanford 93230
511 Healdsburg Avenue, Healdsburg 95448
8019 North Lander Avenue, Hilmar 95324
36582 Dinero Way, Huron 93234
4025 Main Street, Kelseyville 95451
306 South Madera Avenue, Kerman 93630
1400 Draper Street, Kingsburg 93631
6100 Lake Isabella Boulevard, Lake Isabella 93240
650 N Main Street, Suite A, Lakeport 95453
1115 Magnolia Avenue, Larkspur 94939
640 Main Street, Livingston 95334
953 West Pacheco Boulevard, Los Banos 93635
401 West Yosemite Avenue, Madera 93637
5121 Highway 140, Mariposa 95338
590 Center Avenue, Martinez 94553
605 W 18th St, Merced 95341
490 West Olive Avenue, Merced 95340
21058 Calistoga Road, Middletown 95461
64 East Blithedale Avenue, Mill Valley 94941
750 Redwood Highway Frontage Rd, Ste 1222, Mill Valley 94941
1524 Mchenry Avenue, Modesto 95350
901 N. Carpenter Road, Suite 90, Modesto 95351
1 Financial Plaza, Napa 94558
1507 West Imola Avenue, Napa 94559
7333 Redwood Boulevard, Novato 94945
300 Ignacio Boulevard, Novato 94949
11240 Pleasant Valley Road, Penn Valley 95946
203 South Mcdowell Boulevard, Petaluma 94954
5700 Stoneridge Mall, Suite 110, Pleasanton 94588
2893 Sunrise Boulevard, Suite 106, Rancho Cordova 95742
300 Rohnert Park Expressway, Rohnert Park 94928
1610 Arden Way, Suite 199, Sacramento 95815
300 Capitol Mall Ste150, Sacramento 95814
1000 Adams Street, Saint Helena 94574
834 Sir Francis Drake Boulevard, San Anselmo 94960
343 Sansome Street, San Francisco 94104
1108 Fifth Avenue, San Rafael 94901
1177 East Francisco Boulevard, San Rafael 94901
1 Mitchell Boulevard, San Rafael 94903
540 Academy Avenue, Sanger 93657
111 Santa Rosa Avenue, Suite 120, Santa Rosa 95404
2498 Guerneville Road, Santa Rosa 95403
1 Harbor Drive, Sausalito 94965
105 North Main Street, Sebastopol 95472
600 James Street, Shafter 93263
202 West Napa Street, Sonoma 95476
1311 Sanguinetti Road 1311-A, Sonora 95370
811 Center Street, Taft 93268
1917 Hillman Street, Tulare 93274
2891 Geer Road, Turlock 95382
325 East Perkins, Ukiah 95482
138 Peabody Road, Vacaville 95687
1660 Tennessee Street, Vallejo 94590
800 West Main Street, Visalia 93291
1676 North California Blvd., #p-120, Walnut Creek 94596
6470 Washington Street, Yountville 94599


Below is a list of some important events in banks history, including mergers and acquisitions.

05-27-2011Changed Primary Federal Regulatory Agency to Fed.

05-27-2011Changed Bank Class to State Chartered Bank, member of the Federal Reserve System (FRS).

05-27-2011Institution becomes member of the Federal Reserve System.

08-20-2010Acquired Sonoma Valley Bank (27259) in Sonoma, CA as part of a government assisted merger.

02-06-2009Acquired County Bank (22574) in Merced, CA as part of a government assisted merger.

View 28 More Events in Banks History …


Jo-Ren Sensei
Jo-Ren Sensei · 25 March 2022
★★★★★ Branch review: Visalia Branch

I have had a checking account with Westamerica for over 7 years. I am living on social security and a small income. On top of that, I am 80. I could never imagine a kinder and more helpful group of people. I have had not even one complaint.... Read more

Carol Weser
Carol Weser · 9 October 2021
Branch review: Santa Rosa Branch

COMPLAINT: I arrived late afternoon Thursday 10/7 and because of the remodeling of the building I couldn't get to the drop box but a lady inside the suite took my deposit envelope through the crack in the door. . However, they didn't open the envelop... Read more

Russell Burke
Russell Burke · 15 May 2020
Branch review: San Rafael Branch

I received an insert with my laste paper statement advising that as of 7-1-20 there would be a $4.00 service charge to continue with my paper statements. it also explained that the information on how to switch to paperless before the charge stated wa... Read more

View 1 More Comments & Reviews …

Submit your comment, review or complaint about Westamerica Bank.

3.8 / 5
  • Rating 3.80/

Bank rating displayed here is the average value for all Westamerica Bank branches. A total of 15 customers had cast their vote for 77 branches and in average, Westamerica Bank got a score of 3.8 out of 5 stars. The bank has 4 reviews or customer complaints filed.

800 West Main Street, Visalia, CA 93291
650 N Main Street, Suite A, Lakeport, CA 95453
1108 Fifth Avenue, San Rafael, CA 94901
15342 Lakeshore Drive, Clearlake, CA 95422
5121 Highway 140, Mariposa, CA 95338
375 Brunswick Road, Grass Valley, CA 95945
306 South Madera Avenue, Kerman, CA 93630

No new branches were opened in the last 12 months...


No branches were closed in the last 6 months...

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