Alton Il Post Office

Post office

727 Belle Street, Alton, IL 62002

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 Alton Facilities in Illinois

Alton Il Post Office accepts new U.S. passport applications in person in Alton, IL. First-time and child visits are booked on the USPS scheduler. Search ZIP 62002. How to apply · How to renew