Island Park US Post Office

367 Long Beach Road
Island Park, NY 11558
Phone: (516) 432-9537
Fax: (516) 487-2508
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Jamesport US Post Office

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

North Baldwin US Post Office

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

Oyster Bay US Post Office

1 Shore Avenue
Oyster Bay - 11771
(516) 922-8249

Southold US Post Office

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

Riverhead US Post Office

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

Huntington Station US Post Office

888 E Jericho Turnpike
Huntington Sta - 11746
(631) 427-0594

Hauppauge US Post Office

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

Cherry Grove US Post Office

1000 Bay Walk
Cherry Grove - 11782
(631) 589-1177

Port Jefferson US Post Office

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

Brookhaven US Post Office

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