Northport US Post Office

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

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

Carle Place US Post Office

309 Westbury Avenue
Carle Placeace - 11514
(516) 333-3147

Cedarhurst US Post Office

124 Grove Avenue
Cedarhurst - 11516
(516) 295-1452

East Hampton US Post Office

291 Springs Fireplace Road
East Hampton - 11937
(631) 324-0790

Medford US Post Office

1905 Route 112
Medford - 11763
(631) 475-8273

North Babylon US Post Office

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

Riverhead US Post Office

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

Selden US Post Office

109 College Placez
Selden - 11784
(631) 732-8627

Smithtown US Post Office

25 Route 111
Smithtown - 11787
(631) 360-6709

Water Mill US Post Office

670 Montauk Highway
Water Mill - 11976
(631) 726-6310