Islandia US Post Office

PO Box 7800
Islandia, NY 11760
Phone: (631) 582-7420
Fax: (516) 487-2508
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Greenvale US Post Office

37 Northern Blvd
Greenvale - 11548
(516) 621-7163

West Babylon US Post Office

385 Route 109
West Babylon - 11704
(631) 893-0560

Locust US Post Office

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

West Babylon US Post Office

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

East Rockaway US Post Office

10 Main St
East Rockaway - 11518
(516) 599-2157

Wantagh US Post Office

3300 Park Avenue
Wantagh - 11793
(516) 785-3425

Oakdale US Post Office

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

Stony Brook US Post Office

129 Main St
Stony Brook - 11790
(631) 751-5691

Port Jefferson US Post Office

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

Eastport US Post Office

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