The routing number for Westamerica Bank is 121140218.
Westamerica Bank is located at this address: Po Box 1200, Suisun City, California.
In case of mail delivery, this is the full address you should use:
Westamerica Bank
Po Box 1200
Suisun City
California
94585-0000
To contact Westamerica Bank by phone, call: (800) 848-1088
Additional Routing Numbers for Westamerica Bank
| Bank Name: | Westamerica Bank |
| Routing Number: | 121141000 |
| Address: | Po Box 1200 |
| City: | Suisun City |
| State: | California |
| Zip Code: | 94585-0000 |
| Phone Number: | (800) 848-1088 |
| Bank Name: | Westamerica Bank |
| Routing Number: | 121141615 |
| Address: | Po Box 1200 |
| City: | Suisun City |
| State: | California |
| Zip Code: | 94585-0000 |
| Phone Number: | (800) 848-1088 |
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Westamerica Bank
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Routing number is a 9 digit number given to a bank by the ABA (American Bankers Association) in order to recognize the bank for which payment is being sent to.
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