Central Islip US Post Office

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

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

Riverhead US Post Office

1210 W Main St
Riverhead - 11901
(631) 727-1019

Malverne US Post Office

339 Hempstead Avenue
Malverne - 11565
(516) 599-7583

Syosset US Post Office

40 Queens St
Syosset - 11791
(516) 921-0746

Cedarhurst US Post Office

124 Grove Avenue
Cedarhurst - 11516
(516) 295-1452

Old Westbury US Post Office

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

Moriches US Post Office

290 Montauk Highway
Moriches - 11955
(631) 878-1381

Albertson US Post Office

860 Willis Avenue
Albertson - 11507
(516) 746-3512

Nesconset US Post Office

226 Smithtown Blvd
Nesconset - 11767
(631) 265-3278

Blue Point US Post Office

141 Montauk Highway
Blue Point - 11715
(631) 363-6272