Jamesport US Post Office

1451 Route 25
Jamesport, NY 11947
Phone: (631) 722-5946
Fax: (516) 487-2508
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Port Jefferson Station US Post Office

544 Jefferson Placeaza
Port Jefferson Station - 11776
(631) 473-2751

West Islip US Post Office

480 Union Blvd
West Islip - 11795
(631) 669-5157

Great Neck US Post Office

661 Middle Neck Road
Great Neck - 11023
(516) 829-6315

Old Westbury US Post Office

1 Store Hill Road # A
Old Westbury - 11568
(516) 626-5247

Elmont US Post Office

260 Elmont Road
Elmont - 11003
(516) 354-5947

Fire Island Pines Post Office

Fire Island Pines Marina
Fire Isle Pines - 11782
(631) 597-6300

Sayville US Post Office

130 Greene Avenue
Sayville - 11782
(631) 589-6963

Amityville US Post Office

77 Ireland Place
Amityville - 11701
631-264-3532

Stony Brook US Post Office

129 Main St
Stony Brook - 11790
(631) 751-5691

Syosset US Post Office

40 Queens St
Syosset - 11791
(516) 921-0746