Old Greenwich Post Office

Post office

36 Arcadia Road, Old Greenwich, CT 06870

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 Greenwich Facilities in Connecticut

Old Greenwich Post Office accepts new U.S. passport applications in person in Old Greenwich, CT. First-time and child visits are booked on the USPS scheduler. Search ZIP 06870. How to apply · How to renew