West Islip Post Office

Post office

480 Union Boulevard, West Islip, NY 11795

(631) 669-5157

Appointments are required. Call 631-669-2194 to schedule Mon-Fri 9:30A-2:30P and Saturdays 9A-12P.

Appointment required

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

Book at USPS Directions Facilities in West Islip Facilities in New York

West Islip Post Office accepts new U.S. passport applications in person in West Islip, NY. First-time and child visits are booked on the USPS scheduler. Search ZIP 11795. How to apply · How to renew