Uniondale US Post Office

1000 Front St
Uniondale, NY 11553
Phone: (516) 481-8245
Fax: (516) 496-4736
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Bay Shore US Post Office

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

Eastport US Post Office

24 Eastport Manor Road
Eastport - 11941
(631) 325-1798

Greenvale US Post Office

37 Northern Blvd
Greenvale - 11548
(516) 621-7163

North Baldwin US Post Office

1620 Grand Avenue
North Baldwin - 11510
(516) 223-5710

Peconic US Post Office

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

Port Jefferson US Post Office

407 E Main St # 17
Port Jefferson - 11777
(631) 473-1065

Sayville US Post Office

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

Shelter Island Heights US Post Office

6 Grand Avenue
Shelter Island Heights - 11965
(631) 749-0486

Shirely US Post Office

800 Montauk Highway # 1
Shirley - 11967
(631) 281-0479

Wyandanch US Post Office

1569 Straight Path
Wyandanch - 11798
(631) 643-3914