Jefferson County, Kansas

Jefferson County: County in Kansas, United States

About

Jefferson County is a county located in the U.S. state of Kansas. As of the 2010 census, the population was 19,126 and a population density of 13 people per km². After 10 years in 2020 county had an estimated population of 19,032 inhabitants. Its county seat is Oskaloosa. The county was created 169 years ago in 1855.

Jefferson County locator map
Location of Jefferson County on Kansas map.

Quick Facts about Jefferson County

Population : 19,032 (2020)
Country : United States of America
State : Kansas (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 County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson Parish, Jefferson County, Jefferson County, Jefferson County, Jefferson County
Twitter username : jfcountyks
Area : 1442 km2
Water as percent of area : 4.3%
Land as percent of area : 95.7%
Named for : Thomas Jefferson
Capital : Oskaloosa
Establishment : August 08, 1855
Time Zone : Central Time Zone
Local time : 06:33:46 (21st December 2024)
Density : 13 Pop. per km² as of 2020
Population growth : -0.49% (2010-2020)
Jefferson county courthouse kansas image
Jefferson county courthouse kansas
Jefferson county courthouse kansas image

Geography

Jefferson County is located at 39°14'9"N 95°23'0"W (39.2357600, -95.3834500). It has 5 neighbors: Atchison County, Douglas County, Jackson County, Leavenworth County and Shawnee County.

Jefferson County map

The largest city of Jefferson County is Rock Creek with a population of 2,888. Other cities include, Valley Falls population 1,152, McLouth population 838, Meriden population 776 and Nortonville population 605. See all Jefferson County cities & populated places.

Jefferson County Populated Places

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

City Name Population Title
Rock Creek 2,888 Human settlement in Kansas, United States of America
Valley Falls 1,152 City in Kansas, United States
Oskaloosa 1,076 Township in Jefferson County, Kansas
McLouth 838 Human settlement in Jefferson County, Kansas, United States of America
Meriden 776 Human settlement in Jefferson County, Kansas, United States of America
Ozawkie 622 Township in Jefferson County, Kansas
Nortonville 605 Human settlement in Jefferson County, Kansas, United States of America
Winchester 518 City in Jefferson County, Kansas, United States
Perry 96 Human settlement in Jefferson County, Kansas, United States of America

Jefferson County has 5 neighbours.

  • Oskaloosa

Demographics

According to census records, the population of Jefferson County decreased by 0.49% in 10 years.

Year Population % Change Method
2010 19,126 - census
2011 18,942 -0.97% estimation process
2012 18,861 -0.43% estimation process
2013 18,773 -0.47% estimation process
2014 18,805 0.17% estimation process
2015 18,794 -0.06% estimation process
2016 18,824 0.16% estimation process
2017 18,932 0.57% estimation process
2018 18,856 -0.4% estimation process
2019 19,043 0.98% estimation process
2020 19,032 -0.06% estimation process

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People born in Jefferson County (1)

American politician Reynolds Shultz was born in Jefferson County

Other places with the same name (25)

Kansas Other Counties (more counties)

County Name Population Title
Johnson County 607,220 County in Wyoming, United States
Sedgwick County 519,907 County in Kansas, United States
Wichita 391,731 The largest city in Kansas and the center of the Wichita metropolitan area.
Overland Park 197,381 The second most populous city in Johnson County, Kansas.
Shawnee County 175,999 County in Kansas, United States
Wyandotte County 165,265 County in Kansas, United States
Kansas City 152,960 The second most populous city in Kansas.
Douglas County 122,530 County in Kansas, United States
Leavenworth County 82,246 County in Kansas, United States
Riley County 73,202 County in Kansas, United States
Butler County 66,992 County in Kansas, United States of America
Shawnee 66,298 The most populous city in Johnson County, Kansas.
Reno County 61,793 County in Kansas, United States
Lenexa 56,156 The most populous city in Johnson County, Kansas.
Saline County 53,926 County in Kansas, United States
Salina 46,274 The most populous city in Saline County, Kansas.