1st Source Bank, Western Avenue Branch Basic Info Reviews Routing Numbers Map & Direction Name: 1st Source Bank, Western Avenue Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 4505 West Western Avenue South Bend, Indiana 46619 St Joseph County View other branches Phone: 574-235-2211 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071202756YY071212128YY From: To: