First FSB of Mascoutah, First Fsb Of Mascoutah Basic Info Reviews Routing Numbers Map & Direction Name: First FSB of Mascoutah, First Fsb Of Mascoutah Main Office: Yes Service: Full Service Brick and Mortar Office Location: 101 West Main St Mascoutah, Illinois 62258 St. Clair County View other branches Phone: 618-566-2343 Please enable JavaScript to view the comments powered by Disqus. From: To:
