Post Offices in & near Granite City, Illinois. Operating hours, locations, phone/fax number, services information.
Post Office in Granite City, Illinois on Madison Ave. Operating hours, phone number, services information, and other locations.
Address: 2350 Madison Ave, Granite City, IL 62040
Phone: 618-877-0700
Fax: 651-456-6632
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
