Mt. Sinai US Post Office

457 Route 25a
Mt Sinai, NY 11766
Phone: (631) 928-0394
Fax: (516) 747-5876
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East Moriches US Post Office

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

Hicksville US Post Office

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

Great Neck US Post Office

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

Selden US Post Office

109 College Placez
Selden - 11784
(631) 732-8627

Sea Cliff US Post Office

200 Sea Cliff Avenue
Sea Cliff - 11579
(516) 671-8258

Farmingville US Post Office

500 Horseblock Road
Farmingville - 11738
(631) 732-8625

North Babylon US Post Office

1196 Deer Park Avenue
North Babylon - 11703
(631) 667-4693

Floral Park US Post Office

35 Tulip Avenue
Floral Park - 11001
(516) 616-5184

Islip Terrace US Post Office

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

Nesconset US Post Office

226 Smithtown Blvd
Nesconset - 11767
(631) 265-3278