Nassau County , New York

Nassau County: County in New York, United States

Nassau County locator map
Location of Nassau County on New York map.


Nassau County is a county located in the U.S. state of New York. As of the 2010 census, the population was 1,339,532 and a population density of 1,142 people per km². After 9 years in 2019 county had an estimated population of 1,356,924 inhabitants. Its county seat is Mineola. The county was created 122 years ago in 1898.


Nassau County is located at 40°43'56"N 73°35'8"W (40.7321700, -73.5854500). It has 5 neighbors: Bronx, New York City, Queens County, Suffolk County and Westchester County.

HempsteadHouseSandsPoint image

The largest city of Nassau County is Levittown with a population of 51,881. Other cities include, Freeport population 42,956, East Meadow population 38,132, Long Beach population 33,454 and Oceanside population 32,109. See all Nassau County cities & populated places.

HempsteadHouseSandsPoint image

Nassau County map

Nassau County Quick Facts

Population : 1,356,924 (2019)
Country : United States of America
State : New York (United States)
Different from : Nassau County
Twitter username : nassauexecutive
Area : 1173 km2
Official name : Nassau County
Water as percent of area : 37%
Land as percent of area : 63%
Named for : William III
Altitude : 98 feet / 30 meters
Capital : Mineola
Establishment : January 01, 1899
Time Zone : Eastern Time Zone, UTC−05:00, UTC−04:00
Local time : 10:54:43 (5th August 2021)
Density : 1,157 Pop. per km² as of 2019
Population growth : 1.28% (2010-2019)

Nassau County has 5 neighbours.

  • Mineola


The population of Nassau County increased by 1.28% in 9 years.

Year Population % Change Method
1900 55,448 - estimation process
1910 83,930 33.94% estimation process
2009 1,357,429 93.82% census
2010 1,339,532 -1.34% census
2011 1,346,223 0.5% estimation process
2012 1,349,616 0.25% estimation process
2013 1,352,193 0.19% estimation process
2014 1,354,705 0.19% estimation process
2015 1,354,840 0.01% estimation process
2016 1,355,952 0.08% estimation process
2017 1,357,293 0.1% estimation process
2018 1,357,534 0.02% estimation process
2019 1,356,924 -0.04% estimation process

Comitatul Nassau, Comtat de Nassau, Comte de Nassau, Comté de Nassau, Condado de Nassau, Condado han Nassau, Contea di Nassau, Hrabstwo Nassau, Nasau, Nasau srjan, Nassau, Nassau Comitatus, Nassau Kun, Nassau Kūn, Nassau konderria, Nassau maakond, Nassau megye, Nassau okrug, Nasso, Okrug Naso, Quan Nassau, Quận Nassau, mqatʿt nasw, na su xian, nasa'u ka'unti, nasso jun, shhrstan nasaw nywywrk, Насау, Нассау, Нассо, Округ Насо, Նասաու շրջան, מחוז נסאו, شهرستان ناساو، نیویورک, مقاطعة ناسو, نساؤ کاؤنٹی, نساؤ کاؤنٹی، نیویارک, নাসাউ কাউন্টি, ナッソー郡, 納蘇縣

People born in Nassau County (9)

People born in Nassau County, including pop vocalist, songwriter, dance artist, and actress Taylor Dayne, professional wrestler Cliff Compton, actor Jude Ciccolella, you can see a list of people who born in Nassau County.

Other places with the same name (1)

Nassau County Populated Places (more)

Cities, Towns, Neighborhoods & Other Populated Places in Nassau County.

City Name Population Title
Oyster Bay 298,391 Town on Long Island, New York, United States
Hempstead 55,113 Town in Nassau County, New York
Levittown 51,881
Freeport 42,956 City in Illinois
Hicksville 41,547 Census-designated place in Nassau County, New York
East Meadow 38,132 Hamlet and census-designated place (CDP) in Nassau County (Long Island), New York, United States
Valley Stream 37,431 Village in Nassau County, New York, United States of America
Long Beach 33,454 City in Nassau County, New York, United States
Elmont 33,198 Census-designated place in Nassau County, New York
Oceanside 32,109
Franklin Square 29,320 Census-designated place in Nassau County, New York
Glen Cove 27,166 City in Nassau County, New York
Plainview 26,217 City in Texas
Uniondale 24,759 Census designated-place in New York, United States
Rockville Centre 24,550 Village in Nassau County, New York, United States
Baldwin 24,033

New York Other Counties (more counties)

County Name Population Title
New York 19,453,561 State of the United States of America
New York City 8,398,748 Largest city in the United States
Queens 2,339,150 Queens is a city in Queens County, New York
Queens County 2,253,858 County in New York, United States
Manhattan 1,644,518 Borough of New York City, New York, United States
New York County 1,628,706 County in New York state, United States of America
Suffolk County 1,476,601 County in New York, United States
The Bronx 1,455,720 Borough of New York City, United States
Bronx County 1,418,207 Borough of New York City, United States
Westchester County 967,506 County in New York, United States.
Erie County 918,702 County in New York, United States
Monroe County 741,770 County in Florida, United States
Brookhaven 480,763 Town in Suffolk County, New York, United States
Richmond County 476,143 County in Georgia, United States
Staten Island 474,558 Island and borough of New York City
Onondaga County 460,528 County in New York, United States

Next page