Mill Neck US Post Office

32 Frost Mill Road
Mill Neck, NY 11765
Phone: (516) 922-8247
Fax: (631) 226-5599
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East Setauket US Post Office

450 Route 25a
East Setauket - 11733
(631) 941-4005

Laurel US Post Office

2168 Main Road
Laurel - 11948
(631) 298-1672

Cedarhurst US Post Office

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

Islandia US Post Office

PO Box 7800
Islandia - 11760
(631) 582-7420

Remsenburg US Post Office

137 S Country Road
Remsenburg - 11960
(631) 325-5937

Mastic US Post Office

1450 Montauk Highway
Mastic - 11950
(631) 281-0275

Island Park US Post Office

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

Jamesport US Post Office

70 2nd St
South Jamesport - 11970
(631) 722-4317

Central Islip US Post Office

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

Yaphank US Post Office

5 E Main St
Yaphank - 11980
(631) 345-6829