Schertz Bank & Trust, San Marcos Branch Basic Info Reviews Routing Numbers Map & Direction Name: Schertz Bank & Trust, San Marcos Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1917 Dutton Drive, Suite 210 San Marcos, Texas 78666 Hays County View other branches Phone: 512-754-7401 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer114000491YN114916103YY From: To: