Grant County State Bank, Marion Branch Basic Info Reviews Routing Numbers Map & Direction Name: Grant County State Bank, Marion Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 1717 West Kem Road Marion, Indiana 46952 Grant County View other branches Phone: 765-651-1100 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer074909218YY074910126YN From: To: