Westamerica Bank, Mill Valley Branch Basic Info Reviews Routing Numbers Map & Direction Name: Westamerica Bank, Mill Valley Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 64 East Blithedale Avenue Mill Valley, California 94941 Marin County View other branches Phone: 415-389-4710 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer121137001YN121140218YY121141000YN121141615YN From: To:
