1st Source Bank, La Crosse Branch Basic Info Reviews Routing Numbers Map & Direction Name: 1st Source Bank, La Crosse Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 218 North Washington Street La Crosse, Indiana 46348 La Porte County View other branches Phone: 219-754-2726 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071202756YY071212128YY From: To: