Grant County State Bank, Sweetser Branch Basic Info Reviews Routing Numbers Map & Direction Name: Grant County State Bank, Sweetser Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 3988 West Delphi Road Sweetser, Indiana 46987 Grant County View other branches Phone: 765-384-4351 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer074909218YY074910126YN From: To: