1st Source Bank, Westville Branch Basic Info Reviews Routing Numbers Map & Direction Name: 1st Source Bank, Westville Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 501 North Flynn Road Westville, Indiana 46391 La Porte County View other branches Phone: 219-785-4233 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071202756YY071212128YY From: To: