Speonk US Post Office

323 Montauk Highway
Speonk, NY 11972
Phone: (631) 325-1741
Fax: (631) 360-0532
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Albertson US Post Office

860 Willis Avenue
Albertson - 11507
(516) 746-3512

East Islip US Post Office

11 Greenwood Avenue
East Islip - 11730
(631) 581-7807

East Marion US Post Office

9165 Main Road
East Marion - 11939
(631) 477-1668

Hempstead US Post Office

200 Fulton Avenue
Hempstead - 11550
(516) 560-1120

Mattituck US Post Office

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

Merrick US Post Office

2040 Merrick Road
Merrick - 11566
(516) 378-7087

Mineola US Post Office

160 1st St
Mineola - 11501
(516) 746-1372

Old Westbury US Post Office

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

Shoreham US Post Office

69 Route 25a
Shoreham - 11786
(631) 744-3185

US Post Office Processing Center

160 Duryea Road
Melville - 11747
(631) 755-2575