Greenport Post Office

Post office

131 Front Street, Greenport, NY 11944

(631) 477-1463

Appointments are required. Call 631-477-1463 to schedule Mon-Fri 10A-3P and Sat 9A-1P.

Appointment required

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

Book at USPS Directions Facilities in Greenport Facilities in New York

Greenport Post Office accepts new U.S. passport applications in person in Greenport, NY. First-time and child visits are booked on the USPS scheduler. Search ZIP 11944. How to apply · How to renew