Blue Point US Post Office

141 Montauk Highway
Blue Point, NY 11715
Phone: (631) 363-6272
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Southold US Post Office

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

Sag Harbor US Post Office

21 Long Island Avenue
Sag Harbor - 11963
(631) 725-8968

West Babylon US Post Office

617 W Montauk Highway
West Babylon - 11704
(631) 422-2276

Mastic Beach US Post Office

110 Mastic Road
Mastic Beach - 11951
(631) 281-0359

Old Bethpage US Post Office

696 Old Bethpage Road
Old Bethpage - 11804
(516) 249-2915

Cold Spring Harbor US Post Office

126 Main St
Cold Spring Hbr - 11724
(631) 692-5307

Hicksville US Post Office

109 Ludy St
Hicksville - 11801
(516) 433-9188

Brookhaven US Post Office

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

Sea Cliff US Post Office

200 Sea Cliff Avenue
Sea Cliff - 11579
(516) 671-8258

Lawrence US Post Office

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