Northport US Post Office

240 Main St
Northport, NY 11768
Phone: (631) 261-6941
Fax: (516) 437-2896
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East Setauket US Post Office

101 Main St
Setauket - 11733
(631) 941-4042

Levittown US Post Office

180 Gardiners Avenue
Levittown - 11756
(516) 735-7343

East Hampton US Post Office

12 Gay Road
East Hampton - 11937
(631) 324-6320

Cutchogue US Post Office

240 Griffing St
Cutchogue - 11935
(631) 734-6032

Brookhaven US Post Office

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

Centerport US Post Office

434 E Main St
Centerport - 11721
(631) 261-6918

Bayville US Post Office

251 Bayville Avenue
Bayville - 11709
(516) 628-9235

Speonk US Post Office

323 Montauk Highway
Speonk - 11972
(631) 325-1741

Bay Shore US Post Office

1314 5th Avenue
Bay Shore - 11706
(631) 969-3504

Uniondale US Post Office

1000 Front St
Uniondale - 11553
(516) 481-8245