First Bank of Ohio, First Bank Of Ohio Basic Info Reviews Routing Numbers Map & Direction Name: First Bank of Ohio, First Bank Of Ohio Main Office: Yes Service: Full Service Brick and Mortar Office Location: 175 South Washington Street Tiffin, Ohio 44883 Seneca County View other branches Phone: 419-448-9740 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer041202540YN044202466YN From: To: