Islip US Post Office

309 Main St # 3
Islip, NY 11751
Phone: (631) 581-7931
Fax: (516) 487-2508
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Mastic Beach US Post Office

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

Old Westbury US Post Office

1 Store Hill Road # A
Old Westbury - 11568
(516) 626-5247

Great River US Post Office

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

Garden City US Post Office

600 Franklin Avenue
Garden City - 11530
(516) 747-2201

Manorville US Post Office

525 Eastport Manor Road
Manorville - 11949
(631) 727-0064

Farmingville US Post Office

500 Horseblock Road
Farmingville - 11738
(631) 732-8625

Huntington Station US Post Office

888 E Jericho Turnpike
Huntington Sta - 11746
(631) 427-0594

Bellport US Post Office

26 Station Road
Bellport - 11713
(631) 286-8561

US Post Office Processing Center

160 Duryea Road
Melville - 11747
(631) 755-2575

Carle Place US Post Office

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