Post Offices in & near Yaphank, New York. Operating hours, locations, phone/fax number, services information.
Post Office in Yaphank, New York on E Main St. Operating hours, phone number, services information, and other locations.
Address: 5 E Main St, Yaphank, NY 11980
Phone: 631-345-6829
Fax: 631-345-0636
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
