Westhampton US Post Office

408 Mill Road
Westhampton, NY 11977
Phone: (631) 288-4081
Fax: (516) 496-4736
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Oakdale US Post Office

927 Montauk Highway
Oakdale - 11769
(631) 589-2683

Mill Neck US Post Office

32 Frost Mill Road
Mill Neck - 11765
(516) 922-8247

East Setauket US Post Office

450 Route 25a
East Setauket - 11733
(631) 941-4005

East Marion US Post Office

9165 Main Road
East Marion - 11939
(631) 477-1668

Orient US Post Office

980 Village Ln
Orient - 11957
(631) 323-9760

Locust US Post Office

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

Port Washington US Post Office

1051 Port Washington Blvd
Port Washington - 11050
(516) 883-0754

Port Jefferson US Post Office

407 E Main St # 17
Port Jefferson - 11777
(631) 473-1065

New Hyde Park US Post Office

1568 Union Turnpike
New Hyde Park - 11040
(516) 616-6893

Roslyn US Post Office

1391 Old Northern Blvd
Roslyn - 11576
(516) 621-7397