Municipalities, Villages & Hamlets

Long island administrative and political vector map
The map above shows how Long Island is divided into counties and local governments. Nassau County includes three towns and two independent cities, Glen Cove and Long Beach, while Suffolk County is made up entirely of towns, each containing their own villages and hamlets.

Long Island is comprised of two counties in New York State: Nassau and Suffolk – each containing several towns. Within those towns are incorporated villages and unincorporated hamlets. Below you’ll find a complete list of municipalities, villages, and hamlets organized by county and town for easy reference.

Note: Numbers in parentheses reflect approximate population as of the 2020 Census.

County: Nassau

Town of Hempstead

Incorporated Villages

Hamlets / CDPs (Unincorporated)

Town of Oyster Bay

Villages

Hamlets / Unincorporated Communities

Town of North Hempstead

Incorporated Villages

Hamlets / CDPs (Unincorporated)

Independent Cities

Note: Long Island has two incorporated cities, both of which are within Nassau County (Glen Cove and Long Beach). Unlike villages and hamlets, they do not fall within any town and operate as separate city governments.

Suffolk County

Town of Babylon

Incorporated Villages

Hamlets / CDPs (Unincorporated)

Town of East Hampton

Incorporated Villages

Hamlets / CDPs (Unincorporated)

Town of Islip

Incorporated Villages

Hamlets / CDPs (Unincorporated)

In addition to the official hamlets and villages listed above, the Town of Islip also includes several well-known Fire Island beach communities such as Kismet, Fair Harbor, Atlantique, Dunewood, Lonelyville, and Seaview. These areas are not incorporated villages or separate hamlets, but are considered part of the broader Fire Island Census Designated Place.

Town of Riverhead

Incorporated Villages

  • (none)

Hamlets / CDPs (Unincorporated)

Town of Shelter Island

Incorporated Villages

  • (none)

Hamlets / CDPs (Unincorporated)

Town of Southampton

Incorporated Villages

Hamlets / CDPs (Unincorporated)

Town of Huntington

Incorporated Villages

Hamlets / CDPs (Unincorporated)

Town of Brookhaven

Incorporated Villages

Hamlets / CDPs (Unincorporated)

Within the Town of Brookhaven, Fire Island includes several well-known beach communities such as Cherry Grove, Fire Island Pines, Point O’ Woods, Davis Park, and Ocean Ridge. These are not incorporated villages or official hamlets, but they function as distinct neighborhoods with their own associations, ferry service, and seasonal populations.

Town of Smithtown

Incorporated Villages

  • Head of the Harbor (1K)
  • Nissequogue (2K)
  • Village of the Branch (2K)

Hamlets / CDPs (Unincorporated)

Town of Southold

Incorporated Villages

Hamlets / CDPs (Unincorporated)

Note: Suffolk County is made up entirely of towns, each containing their own villages and hamlets.

Long Island’s communities are unique in how they are organized, with cities, towns, incorporated villages, and unincorporated hamlets all woven together across Nassau and Suffolk counties. Whether you are researching a specific place, planning a visit, or simply learning more about the region, understanding these distinctions helps make sense of how Long Island is built and governed.

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