Union Post Office

Post office

1276 North Highway 47, Union, MO 63084

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 Union Facilities in Missouri

Union Post Office accepts new U.S. passport applications in person in Union, MO. First-time and child visits are booked on the USPS scheduler. Search ZIP 63084. How to apply · How to renew