1st Source Bank, Argos Branch Basic Info Reviews Routing Numbers Map & Direction Name: 1st Source Bank, Argos Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 518 North Michigan Street Argos, Indiana 46501 Marshall County View other branches Phone: 574-892-5101 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071202756YY071212128YY From: To: