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WESTAMERICA BANK routing number in the United States

The routing number for WESTAMERICA BANK to send a wire transfer can vary by bank branch. Select the correct routing number from the list below.
WESTAMERICA BANK routing number in the United States

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What is the routing number for WESTAMERICA BANK?

Use the bank routing number for domestic and international wire transfers. Select your bank branch to learn about ACH and wire transfers. Always verify routing numbers with your bank before making transactions.

Routing Numbers
121140218
PO BOX 1200, SUISUN CITY, CA, 94585
121141000
PO BOX 1200, SUISUN CITY, CA, 94585
121141615
PO BOX 1200, SUISUN CITY, CA, 94585

Example routing number

A routing number consists of nine digits. The first four identify the Federal Reserve district, the following four specify the bank, and the final digit is a check digit for validation.

1111

Federal Reserve Routing Symbol

2222

ABA Institution Identifier

3

Check Digit

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