Post Offices in & near Belleville, Illinois. Operating hours, locations, phone/fax number, services information.
Post Office in Belleville, Illinois on W Washington St. Operating hours, phone number, services information, and other locations.
Address: 120 W Washington St, Belleville, IL 62220
Phone: 618-233-0390
Fax: 618-233-9624
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
