Old Westbury US Post Office

223 Store Hill Road # A
Old Westbury, NY 11568
Phone: (516) 333-0964
Fax: (516) 766-7585
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Great Neck US Post Office

661 Middle Neck Road
Great Neck - 11023
(516) 829-6315

Merrick US Post Office

2040 Merrick Road
Merrick - 11566
(516) 378-7087

Jamesport US Post Office

1451 Route 25
Jamesport - 11947
(631) 722-5946

Smithtown US Post Office

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

Hampton US Post Office

16 Ponquogue Avenue
Hampton Bays - 11946
(631) 728-6994

Copiague US Post Office

695 Marconi Blvd
Copiague - 11726
(631) 842-9084

Greenport US Post Office

131 Front St
Greenport - 11944
(631) 477-1493

Islip Terrace US Post Office

136 Carleton Avenue
Islip Terrace - 11752
(631) 581-7894

Bay Shore US Post Office

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

East Hampton US Post Office

291 Springs Fireplace Road
East Hampton - 11937
(631) 324-0790