Mazon Post Office

Post office

600 Depot Street, Mazon, IL 60444

(815) 448-5697

For Appointment Call 815-448-5697

Appointment required

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

Book at USPS Directions Facilities in Mazon Facilities in Illinois

Mazon Post Office accepts new U.S. passport applications in person in Mazon, IL. First-time and child visits are booked on the USPS scheduler. Search ZIP 60444. How to apply · How to renew