Old Saybrook Post Office

Post office

36 Main Street, Old Saybrook, CT 06475

(860) 388-4479

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 Old Saybrook Facilities in Connecticut

Old Saybrook Post Office accepts new U.S. passport applications in person in Old Saybrook, CT. First-time and child visits are booked on the USPS scheduler. Search ZIP 06475. How to apply · How to renew