Start My Family Tree Welcome to Geni, home of the world's largest family tree.
Join Geni to explore your genealogy and family history in the World's Largest Family Tree.

Nassau County, New York (Long Island)

view all

Profiles

  • Steve Cohen
    Steven A. Cohen (born June 11, 1956) is an American hedge fund manager and owner of the New York Mets of Major League Baseball since September 14, 2020, owning roughly 97.2% of the team. He is the fo...
  • Elizabeth Walker (1897 - 1955)
    Elizabeth Walker (Harrison) Ms. Walker-Harrison was the third of three surviving children of the former U.S. President Benjamin Harrison, and the only child of his second wife, Mary Scott Dimmick ...
  • John Sterling MacLean (1902 - 1986)
    John MacLean , Census • United States, Census, 1940 John MacLean's Spouses and Children Muriel MacLean Wife F 35 years New York John J MacLean Son M 9 years New York George MacLean Son M 5 yea...
  • Muriel MacLean (1903 - 2006)
  • Louise R. Sanborn (1909 - 1979)
    Curator's Note : Louise and her sister Doris were raised by Lilian (Vanderbilt) Speir and Louis Dean Speir, her maternal aunt and uncle following the untimely death of their parents. -- Private User ...

Please add profiles of those who were born, lived or died in Nassau County, New York.

Official Website

Nassau County is situated on western Long Island, bordering New York City's borough of Queens to the west, and Suffolk County to the east. It is the most densely populated and second-most populous county in New York State outside of New York City, with which it maintains extensive rail and highway connectivity, and is considered one of the central counties within the New York metropolitan area. Nassau County contains two cities, three towns, 64 incorporated villages, and more than 60 unincorporated hamlets. Nassau County has a designated police department, fire commission, and elected executive and legislative bodies.

A 2012 Forbes article based on the American Community Survey reported Nassau County as the most expensive county and one of the highest income counties in the United States, and the most affluent in the state of New York, with four of the nation's top ten towns by median income located in the county. Nassau County high school students often feature prominently as winners of the Intel International Science and Engineering Fair and similar STEM-based academic awards. Cold Spring Harbor Laboratory in the Town of Oyster Bay and the Old Westbury campus of New York Institute of Technology are both globally prominent life sciences research institutions in 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 family of King William III of England, the House of Nassau, itself named for the German town of Nassau. The county colors (orange and blue) are also the colors of the House of Orange-Nassau.

Several alternate names had been considered for the county, including "Bryant," "Matinecock" (a village within the county currently has that name), "Norfolk" (presumably because of the proximity to Suffolk County), and "Sagamore." However, "Nassau" had the historical advantage of having at one time been the name of Long Island itself, and was the name most mentioned after the new county was proposed in 1875.

For a complete history, please see Wikipedia.

Adjacent Counties

Towns

List of Towns, Hamlets & Villages in Nassau County.

Cemeteries

Cemeteries of New York

History of Nassau County

Oyster Bay National Wildlife Refuge

Sagamore Hill - President Teddy Roosevelt's Summer White House]

National Register of Historic Places

Genealogy Trails

Roots Web

Nassau County Genealogy

Genealogy Federation of Long Island

Nassau County Historical Society

Lost History Links for Nassau County

NYG&B

RAOGK

Long Island County Histories - Nassau County

Between the Lakes



storage.googleapis.com/seo-cdn/public-records/newyork-nassau-county-county-map.jpg