Cherry Grove US Post Office

1000 Bay Walk
Cherry Grove, NY 11782
Phone: (631) 589-1177
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Seaford US Post Office

3575 Merrick Road
Seaford - 11783
(516) 785-3851

Southold US Post Office

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

Smithtown US Post Office

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

Hicksville US Post Office

185 W John St
Hicksville - 11801
(516) 933-2300

Lake Grove US Post Office

1001 Hawkins Avenue
Lake Grove - 11755
(631) 588-7019

East Norwich US Post Office

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

West Sayville US Post Office

12 Washington Avenue
West Sayville - 11796
(631) 589-6958

Rockville US Post Office

250 Merrick Road
Rockville Centre - 11570
(516) 766-5749

East Moriches US Post Office

3 Atlantic Avenue
East Moriches - 11940
(631) 878-0243

Water Mill US Post Office

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