WESTAMERICA BANK ROUTING NUMBER & INFORMATION

Bank records last updated 0000-00-00 00:00:00.

Westamerica Bank ABA Routing Number

Routing Number:

121141615

Westamerica Bank
PO BOX 1200
SUISUN CITY, CA 94585
Westamerica Bank's routing number (the leftmost number on the bottom of a check) is 121141615.

Sometimes, banks have multiple routing numbers for different branches or uses. Please make sure this is the correct routing number for your branch!

CONTACT WESTAMERICA BANK

The main phone number for Westamerica Bank is 800-848-1088. The assigned Federal Reserve Office for Westamerica Bank is Fed 121000374.

WHAT IS A BANK ROUTING NUMBER?

The Westamerica Bank routing number is 121141615

A bank's Routing Transit Number (RTN) is a 9-digit code used to identify your bank on checks, direct deposit, bill pay, and in other transactions.

You need to know your routing number to connect online accounts to your bank account, set up direct deposit with your employer, and in many other financial situations. Learn more.

BANK ROUTING NUMBER LOOKUP

Not looking for the Westamerica Bank routing number? Try searching for your bank's ABA routing number by bank name, location, or phone number.
• PACIFIC PREMIER BANK PACIFIC WESTERN BANK HERITAGE BANK OF COMMERCE
Go To Top »