Casey State Bank, West Union Facility Basic Info Reviews Routing Numbers Map & Direction Name: Casey State Bank, West Union Facility Main Office: No Service: Full Service Brick and Mortar Office Location: 405 South State Highway 1 West Union, Illinois 62477 Clark County View other branches Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071106195YN071121196YN From: To: