First National Bank-Waterloo Address: 907 E Highway 50, O Fallon, IL 62269 Phone: (618) 622-1833 Banks Other Businesses: Umb Bank at 907 E Us Highway 50, O Fallon, IL 62269 Us Bank at 400 S Lincoln Ave, O'fallon, IL 62269 GCS Credit Union at 1119 S. Lincoln Ave., O'Fallon, IL 62269 Navy Federal Credit Union at 1140 Central Park Drive, Suite 106, O'Fallon, IL 62269