Baldwin US Post Office

2260 Grand Avenue
Baldwin, NY 11510
Phone: (516) 223-5024
Fax: (516) 223-7420
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Jamesport US Post Office

70 2nd St
South Jamesport - 11970
(631) 722-4317

Brookhaven US Post Office

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

Valley Stream US Post Office

111 S Franklin Avenue
Valley Stream - 11580
(516) 825-8739

Amityville US Post Office

77 Ireland Place
Amityville - 11701
631-264-3532

Hauppauge US Post Office

150 Oser Avenue
Hauppauge - 11788
(631) 231-3155

Nesconset US Post Office

226 Smithtown Blvd
Nesconset - 11767
(631) 265-3278

Lawrence US Post Office

12 Bayview Avenue
Lawrence - 11559
(516) 239-2834

Bay Shore US Post Office

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

Riverhead US Post Office

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

Sayville US Post Office

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