Missouri Valley Post Office

Post office

116 N. 5th St., Missouri Valley, IA 51555

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 Missouri Valley Facilities in Iowa

Missouri Valley Post Office accepts new U.S. passport applications in person in Missouri Valley, IA. First-time and child visits are booked on the USPS scheduler. Search ZIP 51555. How to apply · How to renew