Hempstead US Post Office

200 Fulton Avenue
Hempstead, NY 11550
Phone: (516) 560-1120
Fax: (516) 487-2508
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Syosset US Post Office

40 Queens St
Syosset - 11791
(516) 921-0746

Islip US Post Office

309 Main St # 3
Islip - 11751
(631) 581-7931

Point Lookout US Post Office

110 Lido Blvd
Point Lookout - 11569
(516) 431-7590

Nesconset US Post Office

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

Mattituck US Post Office

140 Love Ln
Mattituck - 11952
(631) 298-1364

Wantagh US Post Office

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

Garden City US Post Office

630 Old Country Road # 530
Garden City - 11530
(516) 746-1394

Mastic US Post Office

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

Sagaponack US Post Office

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

Old Westbury US Post Office

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