Groton Post Office

Post office

100 Plaza Street, Groton, CT 06340

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 Groton Facilities in Connecticut

Groton Post Office accepts new U.S. passport applications in person in Groton, CT. First-time and child visits are booked on the USPS scheduler. Search ZIP 06340. How to apply · How to renew