Westmont Post Office Il

Post office

5707 S Cass Avenue, Westmont, IL 60559

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 Westmont Facilities in Illinois

Westmont Post Office Il accepts new U.S. passport applications in person in Westmont, IL. First-time and child visits are booked on the USPS scheduler. Search ZIP 60559. How to apply · How to renew