Westamerica Bank, Ceres Branch Basic Info Reviews Routing Numbers Map & Direction Name: Westamerica Bank, Ceres Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1788 Mitchell Road Suite 104 Ceres, California 95307 Stanislaus County View other branches Phone: 209-556-1120 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer121137001YN121140218YY121141000YN121141615YN From: To: