Dieterich Bank, N.A., Belleville Branch Basic Info Reviews Routing Numbers Map & Direction Name: Dieterich Bank, N.A., Belleville Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 2100 South Illinois Street Belleville, Illinois 62220 St. Clair County View other branches Phone: 618-277-3800 Please enable JavaScript to view the comments powered by Disqus. From: To: