Post Offices in & near Fairfield, Illinois. Operating hours, locations, phone/fax number, services information.
Post Office in Fairfield, Illinois on E Delaware St. Operating hours, phone number, services information, and other locations.
Address: 220 E Delaware St, Fairfield, IL 62837
Phone: 618-842-5126
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
