New Hyde Park US Post Office

1568 Union Turnpike
New Hyde Park, NY 11040
Phone: (516) 616-6893
Fax: (516) 437-2896
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Cherry Grove US Post Office

1000 Bay Walk
Cherry Grove - 11782
(631) 589-1177

Glen Cove US Post Office

2 Glen Cove Avenue
Glen Cove - 11542
(516) 671-7847

Islip Terrace US Post Office

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

Mastic Beach US Post Office

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

Mt. Sinai US Post Office

457 Route 25a
Mt Sinai - 11766
(631) 928-0394

Patchogue US Post Office

170 E Main St
Patchogue - 11772
(631) 475-8623

Smithtown US Post Office

25 Route 111
Smithtown - 11787
(631) 360-6709

Upton US Post Office

2 Center St
Upton - 11973
(631) 344-2539

West Sayville US Post Office

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

Westbury US Post Office

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