St. Martin Bank and Trust Company, St. Martin Bank And Trust Company Basic Info Reviews Routing Numbers Map & Direction Name: St. Martin Bank and Trust Company, St. Martin Bank And Trust Company Main Office: Yes Service: Full Service Brick and Mortar Office Location: 301 South Main Street St. Martinville, Louisiana 70582 St. Martin County View other branches Phone: 337-394-7800 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer065200926YY065201446YN065204841YN From: To: