Seaford US Post Office

3575 Merrick Road
Seaford, NY 11783
Phone: (516) 785-3851
Fax: (516) 766-5845
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Hicksville US Post Office

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

Great Neck US Post Office

1 Welwyn Road
Great Neck - 11021
(516) 482-5013

Hauppauge US Post Office

150 Oser Avenue
Hauppauge - 11788
(631) 231-3155

Moriches US Post Office

290 Montauk Highway
Moriches - 11955
(631) 878-1381

New Hyde Park US Post Office

1001 2nd Avenue
New Hyde Park - 11040
(516) 354-6024

Great River US Post Office

62 River Road
Great River - 11739
(631) 581-7680

Smithtown US Post Office

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

Wading River US Post Office

1816 Wading River Manor Road
Wading River - 11792
(631) 929-0219

Fishers Island US Post Office

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

Centerport US Post Office

434 E Main St
Centerport - 11721
(631) 261-6918