Hauppauge US Post Office

150 Oser Avenue
Hauppauge, NY 11788
Phone: (631) 231-3155
Fax: (516) 487-2508
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Mt. Sinai US Post Office

457 Route 25a
Mt Sinai - 11766
(631) 928-0394

Syosset US Post Office

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

Mineola US Post Office

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

Malverne US Post Office

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

Sayville US Post Office

130 Greene Avenue
Sayville - 11782
(631) 589-6963

Central Islip US Post Office

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

Wainscott US Post Office

357 Montauk Highway
Wainscott - 11975
(631) 537-8943

Kings Point US Post Office

300 Steamboat Road
Kings Point - 11024
(516) 773-5298

Merrick US Post Office

2040 Merrick Road
Merrick - 11566
(516) 378-7087

Brightwaters US Post Office

145 Orinoco Dr
Brightwaters - 11718
(631) 206-4855