Mattituck US Post Office

140 Love Ln
Mattituck, NY 11952
Phone: (631) 298-1364
Fax: (631) 226-5599
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Wantagh US Post Office

3300 Park Avenue
Wantagh - 11793
(516) 785-3425

Massapequa Park US Post Office

4910 Merrick Road
Massapequa Park - 11762
(516) 798-1268

Garden City US Post Office

600 Franklin Avenue
Garden City - 11530
(516) 747-2201

Hauppauge US Post Office

960 Wheeler Road
Hauppauge - 11788
(631) 360-6712

Wainscott US Post Office

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

East Marion US Post Office

9165 Main Road
East Marion - 11939
(631) 477-1668

Islandia US Post Office

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

North Baldwin US Post Office

1620 Grand Avenue
North Baldwin - 11510
(516) 223-5710

Bay Shore US Post Office

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

Fishers Island US Post Office

1 Oriental Avenue
Fishers Island - 06390
(631) 788-7835