Tri Counties Bank, Patterson Branch Basic Info Reviews Routing Numbers Map & Direction Name: Tri Counties Bank, Patterson Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 17 Plaza Circle Patterson, California 95363 Stanislaus County View other branches Phone: 209-892-4098 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer121132394YY121135045YY121141738NY121142313YY121142766NY121143422YN From: To: