Holtsville US Post Office

162 Long Island Avenue
Holtsville, NY 11742
Phone: (631) 475-1761
Fax: (516) 487-2508
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Community Offices / Post Offices

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East Moriches US Post Office

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East Moriches - 11940
(631) 878-0243
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Greenvale US Post Office

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Greenvale - 11548
(516) 621-7163
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Massapequa US Post Office

80 Atlantic Avenue
Oceanside - 11572
(516) 766-5829
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West Sayville US Post Office

12 Washington Avenue
West Sayville - 11796
(631) 589-6958
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Blue Point US Post Office

141 Montauk Highway
Blue Point - 11715
(631) 363-6272
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Mastic US Post Office

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Mastic - 11950
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1 Babylon Turnpike
Roosevelt - 11575
(516) 378-6973
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Mastic Beach - 11951
(631) 281-0359
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Massapequa Park US Post Office

4910 Merrick Road
Massapequa Park - 11762
(516) 798-1268
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Montauk US Post Office

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