First State Bank of Forrest, 115 N Chestnut St Branch Basic Info Reviews Routing Numbers Map & Direction Name: First State Bank of Forrest, 115 N Chestnut St Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 115 North Chestnut Street Onarga, Illinois 60955 Iroquois County View other branches Phone: 815-268-7351 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071113049YY071121808YN071123990YN From: To: