Franklin Square US Post Office

867 Hempstead Turnpike
Franklin Square, NY 11010
Phone: (516) 437-6647
Fax: (516) 352-2256
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Baldwin US Post Office

2260 Grand Avenue
Baldwin - 11510
(516) 223-5024

Huntington US Post Office

16 New York Avenue
Huntington - 11743
(631) 423-5880

Islip US Post Office

309 Main St # 3
Islip - 11751
(631) 581-7931

East Hampton US Post Office

291 Springs Fireplace Road
East Hampton - 11937
(631) 324-0790

Water Mill US Post Office

670 Montauk Highway
Water Mill - 11976
(631) 726-6310

East Northport US Post Office

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

Manorville US Post Office

525 Eastport Manor Road
Manorville - 11949
(631) 727-0064

Ronkonkoma US Post Office

200 Hawkins Avenue
Ronkonkoma - 11779
(631) 588-0301

Locust US Post Office

115 Forest Avenue
Locust Valley - 11560
(516) 671-1559

Hicksville US Post Office

109 Ludy St
Hicksville - 11801
(516) 433-9188