Centerport US Post Office

434 E Main St
Centerport, NY 11721
Phone: (631) 261-6918
Fax: (631) 757-6784
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Melville US Post Office

718 Walt Whitman Road
Melville - 11747
(631) 421-0726

Laurel US Post Office

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

Sag Harbor US Post Office

21 Long Island Avenue
Sag Harbor - 11963
(631) 725-8968

Jamesport US Post Office

1451 Route 25
Jamesport - 11947
(631) 722-5946

Baldwin US Post Office

2260 Grand Avenue
Baldwin - 11510
(516) 223-5024

Islip Terrace US Post Office

136 Carleton Avenue
Islip Terrace - 11752
(631) 581-7894

Water Mill US Post Office

670 Montauk Highway
Water Mill - 11976
(631) 726-6310

Plainview US Post Office

1662 Old Country Road
Plainview - 11803
(516) 845-7162

Westbury US Post Office

360 Maple Avenue
Westbury - 11590
(516) 333-3598

Hampton US Post Office

16 Ponquogue Avenue
Hampton Bays - 11946
(631) 728-6994