Locust US Post Office

115 Forest Avenue
Locust Valley, NY 11560
Phone: (516) 671-1559
Fax: (631) 226-5599
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Shelter Island Heights US Post Office

6 Grand Avenue
Shelter Island Heights - 11965
(631) 749-0486

Sayville US Post Office

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

Cherry Grove US Post Office

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

Blue Point US Post Office

141 Montauk Highway
Blue Point - 11715
(631) 363-6272

Old Westbury US Post Office

223 Store Hill Road # A
Old Westbury - 11568
(516) 333-0964

Carle Place US Post Office

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

Great River US Post Office

62 River Road
Great River - 11739
(631) 581-7680

Syosset US Post Office

40 Queens St
Syosset - 11791
(516) 921-0746

East Norwich US Post Office

1001 Oyster Bay Road
East Norwich - 11732
(516) 922-8283

Plandome US Post Office

155 Stonytown Road
Plandome - 11030
(516) 627-3747