Watertown Square Post Office

Post office

126 Main Street, Watertown, MA 02472

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 Massachusetts

Watertown Square Post Office accepts new U.S. passport applications in person in Watertown, MA. First-time and child visits are booked on the USPS scheduler. Search ZIP 02472. How to apply · How to renew