Levittown US Post Office

180 Gardiners Avenue
Levittown, NY 11756
Phone: (516) 735-7343
Fax: (516) 735-7319
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Massapequa US Post Office

80 Atlantic Avenue
Oceanside - 11572
(516) 766-5829

Hicksville US Post Office

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

Old Westbury US Post Office

223 Store Hill Road # A
Old Westbury - 11568
(516) 333-0964

West Islip US Post Office

480 Union Blvd
West Islip - 11795
(631) 669-5157

Sagaponack US Post Office

542 Sagg Main St
Sagaponack - 11962
(631) 537-9346

Great River US Post Office

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

Hampton US Post Office

16 Ponquogue Avenue
Hampton Bays - 11946
(631) 728-6994

Islip Terrace US Post Office

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

Hicksville US Post Office

109 Ludy St
Hicksville - 11801
(516) 433-9188

Ronkonkoma US Post Office

200 Hawkins Avenue
Ronkonkoma - 11779
(631) 588-0301