Sound Beach US Post Office

25 New York Avenue
Sound Beach, NY 11789
Phone: (631) 744-0837
Fax: (631) 360-0532
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Shoreham US Post Office

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

Greenvale US Post Office

37 Northern Blvd
Greenvale - 11548
(516) 621-7163

Rockville US Post Office

250 Merrick Road
Rockville Centre - 11570
(516) 766-5749

Yaphank US Post Office

5 E Main St
Yaphank - 11980
(631) 345-6829

Mattituck US Post Office

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

Floral Park US Post Office

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

Bay Shore US Post Office

1314 5th Avenue
Bay Shore - 11706
(631) 969-3504

Huntington US Post Office

16 New York Avenue
Huntington - 11743
(631) 423-5880

Mastic US Post Office

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

Sag Harbor US Post Office

21 Long Island Avenue
Sag Harbor - 11963
(631) 725-8968