Granite City Il Post Office

Post office

2350 Madison Avenue, Granite City, IL 62040

Hours are not published. Call before you go.

Hours and addresses come from the State Department listing, updated November 2, 2026.

Book at USPS Directions Facilities in Granite City Facilities in Illinois

Granite City Il Post Office accepts new U.S. passport applications in person in Granite City, IL. First-time and child visits are booked on the USPS scheduler. Search ZIP 62040. How to apply · How to renew