Port Washington US Post Office

1051 Port Washington Blvd
Port Washington, NY 11050
Phone: (516) 883-0754
Fax: (516) 845-7406
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Carle Place US Post Office

309 Westbury Avenue
Carle Placeace - 11514
(516) 333-3147

Oyster Bay US Post Office

1 Shore Avenue
Oyster Bay - 11771
(516) 922-8249

Great River US Post Office

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

Mastic Beach US Post Office

110 Mastic Road
Mastic Beach - 11951
(631) 281-0359

Sag Harbor US Post Office

21 Long Island Avenue
Sag Harbor - 11963
(631) 725-8968

Greenvale US Post Office

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

North Babylon US Post Office

1196 Deer Park Avenue
North Babylon - 11703
(631) 667-4693

East Islip US Post Office

11 Greenwood Avenue
East Islip - 11730
(631) 581-7807

New Hyde Park US Post Office

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

Wantagh US Post Office

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