Uspo - Watertown

Post office

405 East Kemp Ave., Watertown, SD 57201

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 Watertown Facilities in South Dakota

Uspo - Watertown accepts new U.S. passport applications in person in Watertown, SD. First-time and child visits are booked on the USPS scheduler. Search ZIP 57201. How to apply · How to renew