Roslyn US Post Office

1391 Old Northern Blvd
Roslyn, NY 11576
Phone: (516) 621-7397
Fax: (516) 766-5845
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Sag Harbor US Post Office

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

Wainscott US Post Office

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

Garden City US Post Office

830 Stewart Avenue
Garden City - 11599
(516) 228-7502

Jamesport US Post Office

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

Quogue US Post Office

6 Midland St
Quogue - 11959
(631) 653-6427

East Moriches US Post Office

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

Cold Spring Harbor US Post Office

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

Mineola US Post Office

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

Old Westbury US Post Office

1 Store Hill Road # A
Old Westbury - 11568
(516) 626-5247

US Post Office Processing Center

160 Duryea Road
Melville - 11747
(631) 755-2575