Sayville US Post Office

130 Greene Avenue
Sayville, NY 11782
Phone: (631) 589-6963
Fax: (516) 766-5845
Visit Website

Islandia US Post Office

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

Old Westbury US Post Office

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

New Hyde Park US Post Office

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

Mastic US Post Office

1450 Montauk Highway
Mastic - 11950
(631) 281-0275

East Northport US Post Office

297 Larkfield Road
East Northport - 11731
(631) 368-5632

Bayport US Post Office

850 Montauk Highway
Bayport - 11705
(631) 472-7396

Holtsville US Post Office

162 Long Island Avenue
Holtsville - 11742
(631) 475-1761

Selden US Post Office

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

Floral Park US Post Office

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

Eastport US Post Office

24 Eastport Manor Road
Eastport - 11941
(631) 325-1798