Seaford US Post Office

3575 Merrick Road
Seaford, NY 11783
Phone: (516) 785-3851
Fax: (516) 766-5845
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East Northport US Post Office

297 Larkfield Road
East Northport - 11731
(631) 368-5632

Shelter Island Heights US Post Office

6 Grand Avenue
Shelter Island Heights - 11965
(631) 749-0486

East Quogue US Post Office

6 Bay Avenue
East Quogue - 11942
(631) 653-5247

Great Neck US Post Office

661 Middle Neck Road
Great Neck - 11023
(516) 829-6315

West Babylon US Post Office

617 W Montauk Highway
West Babylon - 11704
(631) 422-2276

Eastport US Post Office

24 Eastport Manor Road
Eastport - 11941
(631) 325-1798

Westbury US Post Office

360 Maple Avenue
Westbury - 11590
(516) 333-3598

Holtsville US Post Office

162 Long Island Avenue
Holtsville - 11742
(631) 475-1761

Southold US Post Office

710 Traveler St
Southold - 11971
(631) 765-4027

Valley Stream US Post Office

111 S Franklin Avenue
Valley Stream - 11580
(516) 825-8739