Home > California Banks > Santa Rosa Banks > Westamerica Bank Santa Rosa > Westamerica Bank, SANTA ROSA BRANCH > Routing Numbers
Westamerica Bank Routing Numbers
In our record, Westamerica Bank has a total of 3 routing numbers.
Routing Number | Process FedACH | Process Fedwire | Location | Registered Name |
121140218 | Y | Y | Suisun City, CA | Westamerica Bank |
121141000 | Y | N | Suisun City, CA | Westamerica Bank |
121141615 | Y | N | Suisun City, CA | Westamerica Bank |
A routing number is a nine digit code, used in the United States to identify the financial institution. Routing numbers are used by Federal Reserve Banks to process Fedwire funds transfers, and ACH(Automated Clearing House) direct deposits, bill payments, and other automated transfers. The routing number can be found on your check.

The routing number information on this page was updated on Mar. 25, 2024
Banks Nearby
Washington Federal Bank, SANTA ROSA ADMINISTRATIVE OFFICE (0.1 miles)
Limited Service Administrative Office
520 3rd St
Santa Rosa, CA 95401
Limited Service Administrative Office
520 3rd St
Santa Rosa, CA 95401
Washington Federal Bank, SANTA ROSA BRANCH (0.1 miles)
Full Service Brick and Mortar Office
500 3rd St
Santa Rosa, CA 95401
Full Service Brick and Mortar Office
500 3rd St
Santa Rosa, CA 95401
Wells Fargo Bank, SANTA ROSA MAIN BRANCH (0.2 miles)
Full Service Brick and Mortar Office
200 B St
Santa Rosa, CA 95401
Full Service Brick and Mortar Office
200 B St
Santa Rosa, CA 95401