Westamerica Bank

California - Sonoma

List of all branches of Westamerica Bank in Sonoma - California

Branch	Address	Zip
Sonoma Main	202 West Napa Street	95476

What is the routing number? A routing number is a nine-digit numeric code printed on the bottom of checks that is used to facilitate the electronic routing of funds (ACH transfer) from one bank account to another. It's also referred to as RTN, routing transit number or bank routing number. Read more (Enter complete or partial bank name to find details) (Enter complete or partial routing number to find details)

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