Westamerica Bank Routing Numbers

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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Please Note:

This page has the contact information and routing numbers for Westamerica Bank.

You'll find information like phone number, full address, zip code, routing numbers and more.

We are working hard to keep the site updated, however, we cannot guarantee that the information on the site is fully updated at any point in time as changes may occur at any time we encourage you to validate the information with your bank.

Routing Numbers General Information

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.

Routing numbers are often called ABA numbers, Check routing numbers, or Routing transit numbers (RTN).

Routing numbers change from bank to bank and from one bank location to another, there are also different routing numbers for different transactions.

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