Franklin Square US Post Office

867 Hempstead Turnpike
Franklin Square, NY 11010
Phone: (516) 437-6647
Fax: (516) 352-2256
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Hempstead US Post Office

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

Levittown US Post Office

180 Gardiners Avenue
Levittown - 11756
(516) 735-7343

West Sayville US Post Office

12 Washington Avenue
West Sayville - 11796
(631) 589-6958

Northport US Post Office

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

Central Islip US Post Office

110 E Suffolk Avenue
Central Islip - 11722
(631) 234-0547

Williston Park US Post Office

446 Willis Avenue
Williston Park - 11596
(516) 746-3247

Smithtown US Post Office

25 Route 111
Smithtown - 11787
(631) 360-6709

Shelter Island US Post Office

45 N Ferry Road
Shelter Island - 11964
(631) 749-1857

Uniondale US Post Office

1000 Front St
Uniondale - 11553
(516) 481-8245

East Setauket US Post Office

450 Route 25a
East Setauket - 11733
(631) 941-4005