Irwin Post Office

Post office

140 Main Street, Irwin, PA 15642

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 Irwin Facilities in Pennsylvania

Irwin Post Office accepts new U.S. passport applications in person in Irwin, PA. First-time and child visits are booked on the USPS scheduler. Search ZIP 15642. How to apply · How to renew