Holtsville US Post Office

162 Long Island Avenue
Holtsville, NY 11742
Phone: (631) 475-1761
Fax: (516) 487-2508
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Aquebogue US Post Office

212 Linda Avenue
Aquebogue - 11931
(631) 722-4368

Bayville US Post Office

251 Bayville Avenue
Bayville - 11709
(516) 628-9235

Cherry Grove US Post Office

1000 Bay Walk
Cherry Grove - 11782
(631) 589-1177

Copiague US Post Office

695 Marconi Blvd
Copiague - 11726
(631) 842-9084

Hampton US Post Office

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

Middle Island US Post Office

780 Middle Country Road
Middle Island - 11953
(631) 205-1089

Northport US Post Office

240 Main St
Northport - 11768
(631) 261-6941

Quogue US Post Office

6 Midland St
Quogue - 11959
(631) 653-6427

Ronkonkoma US Post Office

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

Yaphank US Post Office

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