New Hyde Park US Post Office

1001 2nd Avenue
New Hyde Park, NY 11040
Phone: (516) 354-6024
Fax: (516) 437-2896
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East Setauket US Post Office

450 Route 25a
East Setauket - 11733
(631) 941-4005

North Babylon US Post Office

1196 Deer Park Avenue
North Babylon - 11703
(631) 667-4693

New Suffolk US Post Office

375 1st St
New Suffolk - 11956
(631) 734-6271

Peconic US Post Office

2575 Peconic Ln
Peconic - 11958
(631) 765-9348

Riverhead US Post Office

1210 W Main St
Riverhead - 11901
(631) 727-1019

Farmingdale US Post Office

380 Main St
Farmingdale - 11735
(516) 249-1552

East Islip US Post Office

11 Greenwood Avenue
East Islip - 11730
(631) 581-7807

Malverne US Post Office

339 Hempstead Avenue
Malverne - 11565
(516) 599-7583

Roslyn US Post Office

1391 Old Northern Blvd
Roslyn - 11576
(516) 621-7397

Mt. Sinai US Post Office

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