East Northport US Post Office

297 Larkfield Road
East Northport, NY 11731
Phone: (631) 368-5632
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North Baldwin US Post Office

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

Bayport US Post Office

850 Montauk Highway
Bayport - 11705
(631) 472-7396

Southold US Post Office

710 Traveler St
Southold - 11971
(631) 765-4027

Franklin Square US Post Office

867 Hempstead Turnpike
Franklin Square - 11010
(516) 437-6647

Roosevelt US Post Office

1 Babylon Turnpike
Roosevelt - 11575
(516) 378-6973

Centereach US Post Office

245 Centereach Mall
Centereach - 11720
(631) 588-7069

Sayville US Post Office

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

Locust US Post Office

115 Forest Avenue
Locust Valley - 11560
(516) 671-1559

Port Jefferson US Post Office

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

Bohemia US Post Office

200 Orville Dr
Bohemia - 11716
(631) 589-2487