Jefferson County is a

county A county () is a geographic region of a country used for administrative or other purposesL. Brookes (ed.) '' Chambers Dictionary''. Edinburgh: Chambers Harrap Publishers Ltd, 2005. in some nations. The term is derived from the Old French denoti ...

located in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...

Kansas Kansas ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to the west. Kansas is named a ...

. Its

county seat A county seat is an administrative center, seat of government, or capital city of a county or parish (administrative division), civil parish. The term is in use in five countries: Canada, China, Hungary, Romania, and the United States. An equiva ...

and most populous city is Oskaloosa. As of the 2020 census, the county population was 18,368. The county was named after

Thomas Jefferson Thomas Jefferson (, 1743July 4, 1826) was an American Founding Fathers of the United States, Founding Father and the third president of the United States from 1801 to 1809. He was the primary author of the United States Declaration of Indepe ...

, the 3rd president of the United States.

History

Early history

For many

millennia A millennium () is a period of one thousand years, one hundred decades, or ten centuries, sometimes called a kiloannum (ka), or kiloyear (ky). Normally, the word is used specifically for periods of a thousand years that begin at the starting p ...

, the

Great Plains The Great Plains is a broad expanse of plain, flatland in North America. The region stretches east of the Rocky Mountains, much of it covered in prairie, steppe, and grassland. They are the western part of the Interior Plains, which include th ...

North America North America is a continent in the Northern Hemisphere, Northern and Western Hemisphere, Western hemispheres. North America is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South Ameri ...

was inhabited by

nomadic Nomads are communities without fixed habitation who regularly move to and from areas. Such groups include hunter-gatherers, pastoral nomads (owning livestock), tinkers and trader nomads. In the twentieth century, the population of nomadic pa ...

Native Americans. From the 16th century to 18th century, the

Kingdom of France The Kingdom of France is the historiographical name or umbrella term given to various political entities of France in the Middle Ages, medieval and Early modern France, early modern period. It was one of the most powerful states in Europe from th ...

claimed ownership of large parts of

. In 1762, after the

French and Indian War The French and Indian War, 1754 to 1763, was a colonial conflict in North America between Kingdom of Great Britain, Great Britain and Kingdom of France, France, along with their respective Native Americans in the United States, Native American ...

, France secretly ceded

New France New France (, ) was the territory colonized by Kingdom of France, France in North America, beginning with the exploration of the Gulf of Saint Lawrence by Jacques Cartier in 1534 and ending with the cession of New France to Kingdom of Great Br ...

Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...

, per the Treaty of Fontainebleau.

19th century

In 1802, Spain returned most of the land to France, but keeping title to about 7,500 square miles. In 1803, most of the land for modern day Kansas was acquired by the United States from France as part of the 828,000 square mile

Louisiana Purchase The Louisiana Purchase () was the acquisition of the Louisiana (New France), territory of Louisiana by the United States from the French First Republic in 1803. This consisted of most of the land in the Mississippi River#Watershed, Mississipp ...

for 2.83 cents per

acre The acre ( ) is a Unit of measurement, unit of land area used in the Imperial units, British imperial and the United States customary units#Area, United States customary systems. It is traditionally defined as the area of one Chain (unit), ch ...

. In 1854, the

Kansas Territory The Territory of Kansas was an organized incorporated territory of the United States that existed from May 30, 1854, until January 29, 1861, when the eastern portion of the territory was admitted to the United States, Union as the Slave and ...

was organized, then in 1861

became the 34th

. In 1855, Jefferson County was established, and was named for President

. Settlement of the county was slowed by events prior to and during the

Civil War A civil war is a war between organized groups within the same Sovereign state, state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies.J ...

, but the present day

unincorporated community An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as th ...

of Thompsonville (3 miles northwest of

Perry Perry or pear cider is an alcoholic beverage made from fermented pears, traditionally in England (particularly Gloucestershire, Herefordshire, and Worcestershire), parts of South Wales, France (especially Normandy and Anjou), Canada, Austral ...

on the

Delaware River The Delaware River is a major river in the Mid-Atlantic region of the United States and is the longest free-flowing (undammed) river in the Eastern United States. From the meeting of its branches in Hancock, New York, the river flows for a ...

) was the first established in 1851 by

Mormon Mormons are a religious and cultural group related to Mormonism, the principal branch of the Latter Day Saint movement started by Joseph Smith in upstate New York during the 1820s. After Smith's death in 1844, the movement split into several ...

settlers who initially refused to accompany the main group led by

Brigham Young Brigham Young ( ; June 1, 1801August 29, 1877) was an American religious leader and politician. He was the second President of the Church (LDS Church), president of the Church of Jesus Christ of Latter-day Saints (LDS Church) from 1847 until h ...

to the

Salt Lake Valley Salt Lake Valley is a valley in Salt Lake County, Utah, Salt Lake County in the north-central portion of the U.S. state of Utah. It contains Salt Lake City, Utah, Salt Lake City and many of its suburbs, notably Murray, Utah, Murray, Sandy, Uta ...

. The settlement was first abandoned due to the violence resulting from the border wars, but was re-established when the Civil War ended.

Geography

According to the U.S. Census Bureau, the county has a total area of , of which is land and (4.3%) is water.

Adjacent counties

* Atchison County (north) * Leavenworth County (east) * Douglas County (south) * Shawnee County (southwest) * Jackson County (northwest)

Demographics

Jefferson County is included in the

Topeka Topeka ( ) is the List of capitals in the United States, capital city of the U.S. state of Kansas and the county seat of Shawnee County, Kansas, Shawnee County. It is along the Kansas River in the central part of Shawnee County, in northeaste ...

, KS Metropolitan Statistical Area. At the 2000 Census, there were 18,426 people, 6,830 households and 5,190 families residing in the county. The population density was . There were 7,491 housing units at an average density of . The racial makeup of the county was 96.70%

White White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...

, 0.92% Native American, 0.37%

Black Black is a color that results from the absence or complete absorption of visible light. It is an achromatic color, without chroma, like white and grey. It is often used symbolically or figuratively to represent darkness.Eva Heller, ''P ...

African American African Americans, also known as Black Americans and formerly also called Afro-Americans, are an Race and ethnicity in the United States, American racial and ethnic group that consists of Americans who have total or partial ancestry from an ...

, 0.17% Asian, 0.01%

Pacific Islander Pacific Islanders, Pasifika, Pasefika, Pacificans, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe th ...

, 0.42% from other races, and 1.41% from two or more races.

Hispanic The term Hispanic () are people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or broadly. In some contexts, Hispanic and Latino Americans, especially within the United States, "Hispanic" is used as an Ethnici ...

or Latino of any race were 1.28% of the population. There were 6,830

household A household consists of one or more persons who live in the same dwelling. It may be of a single family or another type of person group. The household is the basic unit of analysis in many social, microeconomic and government models, and is im ...

s, of which 35.70% had children under the age of 18 living with them, 65.20% were

married couples Marriage, also called matrimony or wedlock, is a culturally and often legally recognised union between people called spouses. It establishes rights and obligations between them, as well as between them and their children (if any), and b ...

living together, 7.00% had a female householder with no husband present, and 24.00% were non-families. 20.10% of all households were made up of individuals, and 9.30% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.07. 27.40% of the population were under the age of 18, 7.00% from 18 to 24, 28.00% from 25 to 44, 24.90% from 45 to 64, and 12.80% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 102.60 males. For every 100 females age 18 and over, there were 98.90 males. The

median household income The median income is the income amount that divides a population into two groups, half having an income above that amount, and half having an income below that amount. It may differ from the mean (or average) income. Both of these are ways of und ...

was $45,535 and the median family income was $50,557. Males had a median income of $36,174 compared with $25,468 for females. The

per capita income Per capita income (PCI) or average income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year. In many countries, per capita income is determined using regular population surveys, such ...

for the county was $19,373. About 5.30% of families and 6.70% of the population were below the

poverty line The poverty threshold, poverty limit, poverty line, or breadline is the minimum level of income deemed adequate in a particular country. The poverty line is usually calculated by estimating the total cost of one year's worth of necessities for ...

, including 6.90% of those under age 18 and 7.70% of those age 65 or over.

Government

Presidential elections

Like all of Kansas outside the eastern cities, Jefferson County is a Republican stronghold, having not been won by a Democrat since

Franklin D. Roosevelt Franklin Delano Roosevelt (January 30, 1882April 12, 1945), also known as FDR, was the 32nd president of the United States, serving from 1933 until his death in 1945. He is the longest-serving U.S. president, and the only one to have served ...

’s 1932 landslide – although it was one of three Kansas counties to give a plurality to

Ross Perot Henry Ross Perot ( ; June 27, 1930 – July 9, 2019) was an American businessman, politician, and philanthropist. He was the founder and chief executive officer of Electronic Data Systems and Perot Systems. He ran an Independent politician ...

in 1992.

Laws

Jefferson County was a prohibition, or "dry", county until the Kansas Constitution was amended in 1986 and voters approved the sale of alcoholic liquor by the individual drink with a 30% food sales requirement. The county voted "No" on the 2022 Kansas abortion referendum, an anti-abortion ballot measure, by 55% to 45% despite backing

Donald Trump Donald John Trump (born June 14, 1946) is an American politician, media personality, and businessman who is the 47th president of the United States. A member of the Republican Party (United States), Republican Party, he served as the 45 ...

with 65% of the vote to

Joe Biden Joseph Robinette Biden Jr. (born November 20, 1942) is an American politician who was the 46th president of the United States from 2021 to 2025. A member of the Democratic Party (United States), Democratic Party, he served as the 47th vice p ...

's 33% in the 2020 presidential election.

Media

Jefferson County has two newspapers which are still in operation, The Oskaloosa Independent and The Valley Falls Vindicator. Both of which are owned by Davis Publications. Together, the two papers cover the happenings of Jefferson County and its townships. The editor for both papers is Holly Allen.

Education

Unified school districts

School districts include:
Text list
/ref> * Atchison County USD 377 * Easton USD 449 * Holton USD 336 * Jefferson County North USD 339 * Jefferson West USD 340 * Lawrence USD 497 * McLouth USD 342 * Oskaloosa USD 341 * Perry-Lecompton USD 343 * Seaman USD 345 * Valley Falls USD 338

Communities

List of townships / incorporated cities / unincorporated communities / extinct former communities within Jefferson County.

Cities

* McLouth * Meriden * Nortonville * Oskaloosa (county seat) * Ozawkie *

* Valley Falls *

Winchester Winchester (, ) is a City status in the United Kingdom, cathedral city in Hampshire, England. The city lies at the heart of the wider City of Winchester, a local government Districts of England, district, at the western end of the South Downs N ...

Unincorporated communities

† means a community is designated a

Census-Designated Place A census-designated place (CDP) is a Place (United States Census Bureau), concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counte ...

(CDP) by the

United States Census Bureau The United States Census Bureau, officially the Bureau of the Census, is a principal agency of the Federal statistical system, U.S. federal statistical system, responsible for producing data about the American people and American economy, econ ...

. * Boyle * Buck Creek * Dunavant * Grantville† * Half Mound * Lakeside Village *

Medina Medina, officially al-Madinah al-Munawwarah (, ), also known as Taybah () and known in pre-Islamic times as Yathrib (), is the capital of Medina Province (Saudi Arabia), Medina Province in the Hejaz region of western Kingdom of Saudi Arabia, ...

* Mooney Creek * Newman * Rock Creek * Thompsonville * Williamstown†

Townships

Jefferson County is divided into twelve townships. None of the cities within the county are considered ''governmentally independent'', and all figures for the townships include those of the cities. In the following table, the population center is the largest city (or cities) included in that township's population total, if it is of a significant size.

Notable people

* Roger Barker (1903-1990), American environmental psychologist * John Curry (1897–1946), painter * Mary Lowman (1842-1912), first woman in Kansas to be elected mayor with a city council composed entirely of women. * Charles Roberts (1936-), American politician

References

;Notes

External links

;County *
Jefferson County - Directory of Public Officials
;Maps * Jefferson County Maps
CurrentHistoric
KDOT * Kansas Highway Maps
CurrentHistoric
KDOT * Kansas Railroad Maps
Current19961915
KDOT and Kansas Historical Society {{Authority control 1855 establishments in Kansas Territory Kansas counties Topeka metropolitan area, Kansas