Freeport US Post Office

132 W Merrick Road
Freeport, NY 11520
Phone: (516) 378-6512
Fax: (516) 223-3843
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Wyandanch US Post Office

1569 Straight Path
Wyandanch - 11798
(631) 643-3914

Roslyn US Post Office

1391 Old Northern Blvd
Roslyn - 11576
(516) 621-7397

Islandia US Post Office

PO Box 7800
Islandia - 11760
(631) 582-7420

Mastic Beach US Post Office

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

Lake Grove US Post Office

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

Shelter Island Heights US Post Office

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

Mineola US Post Office

160 1st St
Mineola - 11501
(516) 746-1372

Jericho US Post Office

425 N Broadway
Jericho - 11753
(516) 681-6248

Amityville US Post Office

77 Ireland Place
Amityville - 11701
631-264-3532

Wainscott US Post Office

357 Montauk Highway
Wainscott - 11975
(631) 537-8943