Suffolk County is located in the eastern part of Long Island, New York. Below is a list of its cities, towns, and incorporated villages, along with some relevant details:
Cities in Suffolk County
- None (Suffolk County does not contain any cities; it is entirely comprised of towns and incorporated villages.)
Towns in Suffolk County
- Babylon
- Brookhaven
- East Hampton
- Huntington
- Islip
- Riverhead
- Shelter Island
- Smithtown
- Southampton
- Southold
Villages in Suffolk County
- Babylon Town: Amityville, Babylon, Lindenhurst
- Brookhaven Town: Belle Terre, Bellport, Lake Grove, Old Field, Patchogue, Poquott, Port Jefferson, Shoreham
- East Hampton Town: East Hampton, Sag Harbor (shared with Southampton)
- Huntington Town: Asharoken, Huntington Bay, Lloyd Harbor, Northport
- Islip Town: Brightwaters, Islandia, Ocean Beach, Saltaire
- Riverhead Town: No incorporated villages
- Shelter Island Town: Dering Harbor
- Smithtown Town: Nissequogue, Head of the Harbor, Village of the Branch
- Southampton Town: North Haven, Quogue, Sag Harbor (shared with East Hampton), Sagaponack, Southampton, Westhampton Beach, West Hampton Dunes
- Southold Town: Greenport
Information
- Population: As of the 2020 U.S. Census, the estimated population of Suffolk County was approximately 1.48 million.
- Area: The total area of Suffolk County is about 2,373 square miles, including both land and water.
- Borders: Suffolk County is bordered by water on three sides: the Atlantic Ocean to the south, Long Island Sound to the north, and the Great Peconic Bay separating it from the North Fork to the northeast. It borders Nassau County to the west.
- Zip Codes: There are numerous Zip Codes in Suffolk County, ranging from 00501 associated with Holtsville to 11980 associated with Yaphank.
- Major Highways: Some of the major highways include the Long Island Expressway (I-495), Sunrise Highway (NY 27), and the Northern State Parkway.
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