Westamerica Bank Sonoma

The Westamerica Bank Sonoma branch is one of the bank's 77 locations and has been serving the financial needs of their customers in Sonoma, Sonoma County, California since 1988. The Sonoma branch operates as a full-service, brick and mortar office and is located at 202 West Napa Street, Sonoma, CA 95476. You can can contact the branch by calling 707-935-3200 or by visiting the location during regular business hours for assistance with your banking needs, such as opening checking and savings accounts, applying for loans and managing financial transactions.

The routing number for Westamerica Bank Sonoma branch is 121140218. It is valid for Automated Clearing House ACH transactions, such as direct deposits and bill payments as well as wire transfers, which are used for real-time bank-to-bank transactions. We recommend that you contact the branch directly to verify this information before proceeding with any transactions.

• ■ Monday:9:00am - 4:00pm
• ■ Tuesday:9:00am - 4:00pm
• ■ Wednesday:9:00am - 4:00pm
• ■ Thursday:9:00am - 4:00pm
• ■ Friday:9:00am - 6:00pm
• ■ Saturday:9:00am - 1:00pm
• ■ Sunday:Closed

Westamerica Bank Sonoma offers both lobby and drive-thru hours. This location is open Monday to Saturday and closed on Sundays. The branch opens at 9:00am in the morning. Please be advised that this information reflects the standard opening and closing hours of Westamerica Bank and is subject to change. We recommend contacting the Sonoma branch prior to your visit to confirm its hours of operation and availability.

• Bank Name:Westamerica Bank
• Bank Type:Federal Reserve Member Bank
• FDIC Insurance:Certificate #3430
• Routing Number:ACH & Wire - 121140218
• Online Banking:westamerica.com
• Branch Count:77 Offices in California