Fort Knox Main Post Office

Post office

120 N Knox St., Fort Knox, KY 40121

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 Fort Knox Facilities in Kentucky

Fort Knox Main Post Office accepts new U.S. passport applications in person in Fort Knox, KY. First-time and child visits are booked on the USPS scheduler. Search ZIP 40121. How to apply · How to renew