Islandia US Post Office

PO Box 7800
Islandia, NY 11760
Phone: (631) 582-7420
Fax: (516) 487-2508
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Mill Neck US Post Office

32 Frost Mill Road
Mill Neck - 11765
(516) 922-8247

Deer Park US Post Office

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

Cedarhurst US Post Office

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

Glen Head US Post Office

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

Moriches US Post Office

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

Hicksville US Post Office

109 Ludy St
Hicksville - 11801
(516) 433-9188

Mattituck US Post Office

140 Love Ln
Mattituck - 11952
(631) 298-1364

Malverne US Post Office

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

Merrick US Post Office

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

Fishers Island US Post Office

1 Oriental Avenue
Fishers Island - 06390
(631) 788-7835