1st Source Bank, Portage Central Branch Basic Info Reviews Routing Numbers Map & Direction Name: 1st Source Bank, Portage Central Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 6043 Central Avenue Portage, Indiana 46368 Porter County View other branches Phone: 219-762-2165 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071202756YY071212128YY From: To: