Counties

The counties of New York State
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Counties

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62 Counties
of 7
Adirondacks
Hamilton County
Hamilton is the least populous county in New York. It is named after Alexander Hamilton, the only member of the NYS delegation who signed the US Constitution in 1787

Website: https://www.hamiltoncounty.com/

Outline of Hamilton County on a Map of New York State.
Central New York
Herkimer County
The county is named after General Nicholas Herkimer, who died in 1777 after taking part in Battle of Oriskany during the Revolutionary War.

Website: https://www.herkimercounty.org/

Outline of Herkimer County on a Map of New York State.
Thousand Islands Seaway
Jefferson County
The county is named after Thomas Jefferson, third President of the United States of America. It is adjacent to Lake Ontario, southeast from the Canadian border of Ontario.

Website: https://www.co.jefferson.ny.us/

Outline of Jefferson County on a Map of New York State.
New York City
Kings County
Brooklyn has had the same boundaries as Kings County, which is the most populous county in New York and the second-most densely populated county in the United States.

Website: https://www.brooklynbp.nyc.gov/

Outline of Kings County on a Map of New York State.
Adirondacks
Lewis County
Lewis county is named after Morgan Lewis, the Governor of New York when the county was established.

Website: https://lewiscountyny.gov/

Outline of Lewis County on a Map of New York State.
Finger Lakes
Livingston County
Livingston county is named after Robert R. Livingston, a member of the committee that drafted the Declaration of Independence.

Website: https://www.livingstoncounty.us/

Outline of Livingston County on a Map of New York State.
Central New York
Madison County
The county is named after James Madison, fourth President of the United States of America.

Website: https://www.madisoncounty.ny.gov/

Outline of Madison County on a Map of New York State.
Finger Lakes
Monroe County
Monroe's county seat is the city of Rochester. The county is named after James Monroe, fifth President of the United States of America.

Website: https://www.monroecounty.gov/

Outline of Monroe County on a Map of New York State.
Central New York
Montgomery County
Montgomery County borders the banks of the Mohawk River. It was named in honor of Richard Montgomery, an American Revolutionary War general killed at the Battle of Quebec.

Website: https://www.co.montgomery.ny.us/

Outline of Montgomery County on a Map of New York State.
Long Island
Nassau County
The name of the county comes from an old name for Long Island, which was at one time named Nassau, after the Dutch Prince William of Nassau, Prince of Orange.

Website: https://www.nassaucountyny.gov/

Outline of Nassau County on a Map of New York State.
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