Locust US Post Office

115 Forest Avenue
Locust Valley, NY 11560
Phone: (516) 671-1559
Fax: (631) 226-5599
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Island Park US Post Office

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

Albertson US Post Office

860 Willis Avenue
Albertson - 11507
(516) 746-3512

Copiague US Post Office

695 Marconi Blvd
Copiague - 11726
(631) 842-9084

Peconic US Post Office

2575 Peconic Ln
Peconic - 11958
(631) 765-9348

Atlantic Beach US Post Office

2009 Park St
Atlantic Beach - 11509
(516) 239-1178

New Hyde Park US Post Office

44 Millers Ln
New Hyde Park - 11040
(516) 616-6853

Shelter Island Heights US Post Office

6 Grand Avenue
Shelter Island Heights - 11965
(631) 749-0486

Jamesport US Post Office

70 2nd St
South Jamesport - 11970
(631) 722-4317

Wainscott US Post Office

357 Montauk Highway
Wainscott - 11975
(631) 537-8943

West Islip US Post Office

480 Union Blvd
West Islip - 11795
(631) 669-5157