Post Offices in & near East Islip, New York. Operating hours, locations, phone/fax number, services information.
Post Office in East Islip, New York on Greenwood Ave. Operating hours, phone number, services information, and other locations.
Address: 11 Greenwood Ave, East Islip, NY 11730
Phone: 631-581-7807
Fax: 631-224-9064
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
