St Ann Post Office

Post office

10401 International Plaza Drive, St Ann, MO 63074

(314) 428-7153

By appointment. Please call 314-428-7153.

Appointment required

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

Book at USPS Directions Facilities in St Ann Facilities in Missouri

St Ann Post Office accepts new U.S. passport applications in person in St Ann, MO. First-time and child visits are booked on the USPS scheduler. Search ZIP 63074. How to apply · How to renew