West Islip US Post Office

480 Union Blvd
West Islip, NY 11795
Phone: (631) 669-5157
Fax: (516) 496-4736
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Centerport US Post Office

434 E Main St
Centerport - 11721
(631) 261-6918

Valley Stream US Post Office

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

Fire Island Pines Post Office

Fire Island Pines Marina
Fire Isle Pines - 11782
(631) 597-6300

North Bellmore US Post Office

2465 Jerusalem Avenue
North Bellmore - 11710
(516) 785-0676

East Marion US Post Office

9165 Main Road
East Marion - 11939
(631) 477-1668

Middle Island US Post Office

780 Middle Country Road
Middle Island - 11953
(631) 205-1089

Mineola US Post Office

160 1st St
Mineola - 11501
(516) 746-1372

Mill Neck US Post Office

32 Frost Mill Road
Mill Neck - 11765
(516) 922-8247

Mastic Beach US Post Office

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

Islandia US Post Office

PO Box 7800
Islandia - 11760
(631) 582-7420