Rensselaer County , New York

Rensselaer County: County in New York, United States

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


Rensselaer County is a county located in the U.S. state of New York. As of the 2010 census, the population was 159,429 and a population density of 93 people per km². After 9 years in 2019 county had an estimated population of 158,714 inhabitants. Its county seat is Troy. The county was created 230 years ago in 1791.


Rensselaer County is located at 42°42'40"N 73°30'35"W (42.7110500, -73.5097200). It has 6 neighbors: Berkshire County, Columbia County, Greene County, Saratoga County, Washington County and Bennington County.

RensCoCourthouse image

The largest city of Rensselaer County is Troy with a population of 49,154. Other cities include, Rensselaer population 9,171, Stephentown population 2,868, Cropseyville population 1,713 and Castleton-on-Hudson population 1,462. See all Rensselaer County cities & populated places.


Rensselaer County forecast: A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 30%. more

RensCoCourthouse image

Rensselaer County map

Rensselaer County Quick Facts

Population : 158,714 (2019)
Country : United States of America
State : New York (United States)
Area : 1723 km2
Water as percent of area : 1.9%
Land as percent of area : 98.1%
Named for : Kiliaen van Rensselaer
Altitude : 1,450 feet / 442 meters
Capital : Troy
Establishment : February 02, 1791
Time Zone : America/New_York
Local time : 11:27:18 (5th August 2021)
Density : 92 Pop. per km² as of 2019
Population growth : -0.45% (2010-2019)
Weather : 75℉ Chance Showers And Thunderstorms 7-days weather

Rensselaer County has 6 neighbours.

  • Troy


According to census records, the population of Rensselaer County decreased by 0.45% in 9 years.

Year Population % Change Method
2010 159,429 - census
2011 159,589 0.1% estimation process
2012 159,437 -0.1% estimation process
2013 159,545 0.07% estimation process
2014 159,666 0.08% estimation process
2015 159,436 -0.14% estimation process
2016 159,294 -0.09% estimation process
2017 159,200 -0.06% estimation process
2018 159,283 0.05% estimation process
2019 158,714 -0.36% estimation process

Comitatul Rensselaer, Comte de Rensselaer, Comté de Rensselaer, Condado de Rensselaer, Condado han Rensselaer, Contea di Rensselaer, Hrabstwo Rensselaer, Okrug Rensler, Quan Rensselaer, Quận Rensselaer, Renseler srjan, Rensselaer, Rensselaer Comitatus, Rensselaer Kun, Rensselaer Kūn, Rensselaer konderria, Rensselaer megye, Rensseler, Rensulijr, lun sai lei xian, rensasilayera ka'unti, renseria jun, shhrstan alksandr nywywrk, Округ Ренслер, Ренсселер, Ренсълийр, Ռենսելեր շրջան, رنسیلائر کاؤنٹی, رینسیلر کاؤنٹی، نیویارک, شهرستان الکساندر، نیویورک, مقاطعة رينسيلير, রেন্সসীলায়ের কাউন্টি, レンセリア郡, 倫塞勒縣

People born in Rensselaer County (12)

People born in Rensselaer County, including sculptor Edmonia Lewis, Jacob Ruiter, politician Moss Kent, you can see a list of people who born in Rensselaer County.

Rensselaer County Populated Places (more)

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

City Name Population Title
Troy 49,154 County seat of Rensselaer County, New York, United States
East Greenbush 16,221 Town in New York state
Stony Point 15,313 Town in Rockland County, New York, United States
Brunswick 13,046 Town in New York
Rensselaer 9,171 City in Indiana
Sand Lake 8,425 Town in Rensselaer County, New York, United States
Hoosick 6,728 Town in New York, United States
Pittstown 5,563 Town in New York
Poestenkill 4,499 Town in New York, USA
Hoosick Falls 3,347 Town
Wynantskill 3,276 Census-designated place in Rensselaer County, New York
Stephentown 2,868 City in Rensselaer County, New York, United States of America
West Sand Lake 2,660 Census-designated place in Rensselaer County, New York
Hampton Manor 2,417 Census-designated place in Rensselaer County, New York
Grafton 2,156 Town in New York, United States
Berlin 1,803 Town in New York

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
Nassau County 1,356,924 County in New York, 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

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