Baldwin US Post Office

2260 Grand Avenue
Baldwin, NY 11510
Phone: (516) 223-5024
Fax: (516) 223-7420
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Islandia US Post Office

PO Box 7800
Islandia - 11760
(631) 582-7420

Islip US Post Office

309 Main St # 3
Islip - 11751
(631) 581-7931

New Hyde Park US Post Office

1568 Union Turnpike
New Hyde Park - 11040
(516) 616-6893

Bay Shore US Post Office

10 Bay Shore Avenue
Bay Shore - 11706
(631) 969-3506

Orient US Post Office

980 Village Ln
Orient - 11957
(631) 323-9760

East Marion US Post Office

9165 Main Road
East Marion - 11939
(631) 477-1668

Brookhaven US Post Office

2512 Montauk Highway
Brookhaven - 11719
(631) 286-1591

Jamesport US Post Office

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

Stony Brook US Post Office

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

Cold Spring Harbor US Post Office

126 Main St
Cold Spring Hbr - 11724
(631) 692-5307