1st Source Bank, Bremen Branch Basic Info Reviews Routing Numbers Map & Direction Name: 1st Source Bank, Bremen Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1409 West Plymouth Street Bremen, Indiana 46506 Marshall County View other branches Phone: 574-546-3411 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071202756YY071212128YY From: To: