First Financial Bank, North Mill Branch Basic Info Reviews Routing Numbers Map & Direction Name: First Financial Bank, North Mill Branch Main Office: No Service: Full Service Brick and Mortar Office Location: 223 North Mill Street Pontiac, Illinois 61764 Livingston County View other branches Phone: 815-844-3171 Please enable JavaScript to view the comments powered by Disqus. Routing NumberProcess ACH TransferProcess Wire Transfer071100858YN071103473YY074900356YY From: To: