Jefferson County, New York

Jefferson County: County in New York, United States

About

Jefferson County is a county located in the U.S. state of New York. As of the 2010 census, the population was 116,229 and a population density of 24 people per km². After 10 years in 2020 county had an estimated population of 108,095 inhabitants. Its county seat is Watertown. The county was created 219 years ago in 1804.

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

Quick Facts about Jefferson County

Population : 108,095 (2020)
Country : United States of America
State : New York (United States)
Different from : Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson Parish, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County
Area : 4810 km2
Water as percent of area : 32%
Land as percent of area : 68%
Named for : Thomas Jefferson
Capital : Watertown
Establishment : January 01, 1805
Time Zone : America/New_York
Local time : 02:38:10 (27th April 2024)
Density : 22 Pop. per km² as of 2020
Population growth : -7.52% (2010-2020)
Old Jefferson County Courthouse Arsenal %26 Sherman Streets Watertown 'Jefferson County New York' image
Old Jefferson County Courthouse Arsenal %26 Sherman Streets Watertown 'Jefferson County New York'
Old Jefferson County Courthouse Arsenal %26 Sherman Streets Watertown 'Jefferson County New York' image
Old Jefferson County Courthouse Arsenal %26 Sherman Streets Watertown 'Jefferson County New York' image

Geography

Jefferson County is located at 43°59'56"N 76°3'8"W (43.9988500, -76.0521100). It has 3 neighbors: Lewis County, Oswego County and St. Lawrence County.

Jefferson County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Jefferson County is Brownville with a population of 5,876. Other cities include, Sackets Harbor population 1,376, Black River population 1,217, Rodman population 1,109 and Evans Mills population 545. See all Jefferson County cities & populated places.

Jefferson County Populated Places (more)

Cities, towns, neighborhoods & other populated places in Jefferson County.

City Name Population Title
Brownville 5,876 Human settlement in Jefferson County, New York, United States of America
Adams 4,847 Town in New York, United States
Clayton 4,647 Village in Jefferson County, New York, United States
Watertown 4,426 Town in Jefferson County, New York
Champion 4,236 Town in Jefferson County, New York
Calcium 3,491 Census-designated place in Jefferson County, New York
Ellisburg 3,284 Town in Jefferson County, New York, United States
Carthage 3,256 Village in the United States
Cape Vincent 2,661 Town in New York
West Carthage 1,901 Village in New York, USA
Philadelphia 1,759 Town in Jefferson County, New York, United States
Adams Center 1,568 Census-designated place in Jefferson County, New York
Waterville 1,502 Village in New York, United States
Sackets Harbor 1,376 City in Jefferson County, New York, United States of America
Henderson 1,287 Town in Jefferson County, New York, United States
Smithville 1,257 Town in New York, United States

Jefferson County has 3 neighbours.

Demographics

According to census records, the population of Jefferson County decreased by 7.52% in 10 years.

Year Population % Change Method
2010 116,229 - census
2011 117,752 1.29% estimation process
2012 120,235 2.07% estimation process
2013 118,490 -1.47% estimation process
2014 117,971 -0.44% estimation process
2015 116,371 -1.37% estimation process
2016 112,980 -3% estimation process
2017 113,157 0.16% estimation process
2018 111,866 -1.15% estimation process
2019 109,834 -1.85% estimation process
2020 108,095 -1.61% estimation process

Comitatul Jefferson, Comte de Jefferson, Comté de Jefferson, Condado de Jefferson, Condado han Jefferson, Contea di Jefferson, Dzhefersun, Dzhefferson, Hrabstwo Jefferson, Jeferson srjan, Jefferson, Jefferson Comitatus, Jefferson Kun, Jefferson Kūn, Jefferson konderria, Jefferson megye, Jeffersoni maakond, Okrug DZeferson, Quan Jefferson, Quận Jefferson, jefason jun, jepharasana ka'unti, jie fei xun xian, mqatʿt jyfyrswn, shhrstan jfrswn nywywrk, Джеферсън, Джефферсон, Округ Џеферсон, Ջեֆերսոն շրջան, جیفرسن کاؤنٹی, جیفرسن کاؤنٹی، نیویارک, شهرستان جفرسون، نیویورک, مقاطعة جيفيرسون, জেফারশন কাউন্টি, ジェファーソン郡, 杰斐逊县

People born in Jefferson County (23)

People born in Jefferson County, including diplomat Charles E. Bohlen, politician Edward S. Minor, politician George H. Cobb, .

List

Other places with the same name (25)

New York Other Counties (more counties)

County Name Population Title
New York City 8,398,748 The most populous city in the United States and the center of the New York metropolitan area.
Brooklyn 2,577,000 A borough of New York City.
Queens 2,339,150 The most populous borough of New York City.
Queens County 2,225,821 County in New York, United States
Manhattan 1,644,518 The most densely populated borough of New York City.
New York County 1,611,989 County in New York state, United States of America
Suffolk County 1,474,273 County in New York, United States
The Bronx 1,455,720 The fourth most populous borough of New York City.
Bronx County 1,401,142 Borough of New York City, United States
Nassau County 1,351,334 County in New York, United States
Westchester County 965,802 County in New York, United States.
Erie County 917,241 County in New York, United States
Hempstead 764,055 Town in Nassau County, New York
Monroe County 740,900 County in Florida, United States
Brookhaven 479,883 Town in Suffolk County, New York, United States
Richmond County 475,327 County in Georgia, United States