1st Source Bank, Drive-In Facility Basic Info Reviews Routing Numbers Map & Direction Name: 1st Source Bank, Drive-In Facility Main Office: No Service: Limited Service Facility Office Location: 312 North Center Street Plymouth, Indiana 46563 Marshall County View other branches Phone: 574-935-1522 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071202756YY071212128YY From: To: