Holtsville US Post Office

162 Long Island Avenue
Holtsville, NY 11742
Phone: (631) 475-1761
Fax: (516) 487-2508
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East Moriches US Post Office

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

Greenvale US Post Office

37 Northern Blvd
Greenvale - 11548
(516) 621-7163

Massapequa US Post Office

80 Atlantic Avenue
Oceanside - 11572
(516) 766-5829

West Sayville US Post Office

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

Blue Point US Post Office

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

Mastic US Post Office

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

Roosevelt US Post Office

1 Babylon Turnpike
Roosevelt - 11575
(516) 378-6973

Mastic Beach US Post Office

110 Mastic Road
Mastic Beach - 11951
(631) 281-0359

Massapequa Park US Post Office

4910 Merrick Road
Massapequa Park - 11762
(516) 798-1268

Montauk US Post Office

73 S Euclid Avenue
Montauk - 11954
(631) 668-7043