Central Islip US Post Office

101 Federal Plaza
Central Islip, NY 11722
Phone: (631) 715-0001
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Elmont US Post Office

260 Elmont Road
Elmont - 11003
(516) 354-5947

Old Westbury US Post Office

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

Westhampton US Post Office

408 Mill Road
Westhampton - 11977
(631) 288-4081

East Northport US Post Office

297 Larkfield Road
East Northport - 11731
(631) 368-5632

East Moriches US Post Office

3 Atlantic Avenue
East Moriches - 11940
(631) 878-0243

West Sayville US Post Office

12 Washington Avenue
West Sayville - 11796
(631) 589-6958

West Hempstead US Post Office

245 Hempstead Avenue
West Hempstead - 11552
(516) 481-5430

Medford US Post Office

1905 Route 112
Medford - 11763
(631) 475-8273

Glen Head US Post Office

240 Glen Head Road # 1
Glen Head - 11545
(516) 676-8465

Island Park US Post Office

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