Southampton Post Office

Post office

123 North Sea Road, Southampton, NY 11968

(631) 204-9822

Appointments are required. Call 631-204-9822 to schedule Mon-Sat 10A-3P.

Appointment required

Hours and addresses come from the State Department listing, updated November 2, 2026.

Book at USPS Directions Facilities in Southampton Facilities in New York

Southampton Post Office accepts new U.S. passport applications in person in Southampton, NY. First-time and child visits are booked on the USPS scheduler. Search ZIP 11968. How to apply · How to renew