Islip US Post Office

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

109 College Placez
Selden - 11784
(631) 732-8627

Fire Island Pines Post Office

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

Deer Park US Post Office

375 Carlls Path
Deer Park - 11729
(631) 667-6490

Central Islip US Post Office

101 Federal Plaza
Central Islip - 11722
(631) 715-0001

Hampton US Post Office

16 Ponquogue Avenue
Hampton Bays - 11946
(631) 728-6994

Old Westbury US Post Office

223 Store Hill Road # A
Old Westbury - 11568
(516) 333-0964

Farmingville US Post Office

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

New Hyde Park US Post Office

2038 Hillside Avenue
New Hyde Park - 11040
(516) 354-5685

Brookhaven US Post Office

2512 Montauk Highway
Brookhaven - 11719
(631) 286-1591

Calverton US Post Office

3690 Middle Country Road
Calverton - 11933
(631) 727-0067