1st Source Bank, Maple Lane Branch Basic Info Reviews Routing Numbers Map & Direction Name: 1st Source Bank, Maple Lane Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 2230 South Bend Avenue South Bend, Indiana 46635 St Joseph County View other branches Phone: 574-271-4240 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071202756YY071212128YY From: To: