North Babylon US Post Office

1196 Deer Park Avenue
North Babylon, NY 11703
Phone: (631) 667-4693
Fax: (516) 437-2896
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East Quogue US Post Office

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

New Hyde Park US Post Office

1001 2nd Avenue
New Hyde Park - 11040
(516) 354-6024

Valley Stream US Post Office

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

Island Park US Post Office

367 Long Beach Road
Island Park - 11558
(516) 432-9537

Upton US Post Office

2 Center St
Upton - 11973
(631) 344-2539

Great River US Post Office

62 River Road
Great River - 11739
(631) 581-7680

Northport US Post Office

240 Main St
Northport - 11768
(631) 261-6941

East Setauket US Post Office

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

Sagaponack US Post Office

542 Sagg Main St
Sagaponack - 11962
(631) 537-9346

Hicksville US Post Office

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