Island Park US Post Office

367 Long Beach Road
Island Park, NY 11558
Phone: (516) 432-9537
Fax: (516) 487-2508
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Port Jefferson Station US Post Office

544 Jefferson Placeaza
Port Jefferson Station - 11776
(631) 473-2751

Southold US Post Office

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

Seaford US Post Office

3575 Merrick Road
Seaford - 11783
(516) 785-3851

Moriches US Post Office

290 Montauk Highway
Moriches - 11955
(631) 878-1381

Kings Point US Post Office

300 Steamboat Road
Kings Point - 11024
(516) 773-5298

Elmont US Post Office

778 Elmont Road
Elmont - 11003
(516) 285-4078

East Hampton US Post Office

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

East Rockaway US Post Office

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

Great River US Post Office

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

Rockville US Post Office

250 Merrick Road
Rockville Centre - 11570
(516) 766-5749