Leavenworth 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 ...

and is part of the

Kansas City metropolitan area The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With and a population of more t ...

. 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 Leavenworth. As of the 2020 census, the county population was 81,881. The county was named after

Henry Leavenworth Henry Leavenworth (December 10, 1783 – July 21, 1834) was an American soldier active in the War of 1812 and early military expeditions against the Plains Indians. He established Fort Leavenworth in Kansas. The city of Leavenworth, Kansas; Lea ...

, a general in the Indian Wars who established

Fort Leavenworth Fort Leavenworth () is a United States Army installation located in Leavenworth County, Kansas, in the city of Leavenworth, Kansas, Leavenworth. Built in 1827, it is the second oldest active United States Army post west of Washington, D.C., an ...

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, Leavenworth County was established, and is among the first 33 counties, which were formed by the first territorial government. It was named, as was its county seat, after

, an officer in the

War of 1812 The War of 1812 was fought by the United States and its allies against the United Kingdom of Great Britain and Ireland, United Kingdom and its allies in North America. It began when the United States United States declaration of war on the Uni ...

. Leavenworth County had the first Kansas State University extension agent in the State.

Geography

According to 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 ...

, the county has a total area of , of which is land and (1.3%) is water. It is the fifth-smallest county in Kansas by total area. This county's

watershed Watershed may refer to: Hydrology * Drainage divide, the line that separates neighbouring drainage basins * Drainage basin, an area of land where surface water converges (North American usage) Music * Watershed Music Festival, an annual country ...

connects with both the

Kansas River The Kansas River, also known as the Kaw, is a meandering river in northeastern Kansas in the United States. It is potentially the southwestern most part of the Missouri River drainage, which is sometimes in turn the northwesternmost portion of ...

basin on the south via Stranger Creek and has a

Missouri River The Missouri River is a river in the Central United States, Central and Mountain states, Mountain West regions of the United States. The nation's longest, it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Moun ...

port city to the east.

Adjacent counties

* Platte County,

Missouri Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...

(north) *

Wyandotte County Wyandotte County () is a county in the U.S. state of Kansas. Its county seat and most populous city is Kansas City, with which it shares a unified government. As of the 2020 census, the population was 169,245, making it Kansas's fourth-m ...

(east) * Johnson County (southeast) * Douglas County (southwest) * Jefferson County (west) * Atchison County (northwest)

Demographics

The county is a part of the

Kansas City The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With and a population of more t ...

, MO-KS Metropolitan Statistical Area. As of the

census A census (from Latin ''censere'', 'to assess') is the procedure of systematically acquiring, recording, and calculating population information about the members of a given Statistical population, population, usually displayed in the form of stati ...

of 2000, there were 68,691 people, 23,071 households, and 17,210 families residing in the county. The

population density Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...

was . There were 24,401 housing units at an average density of . The racial makeup of the county was 84.2%

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 ...

, 10.4%

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 ...

, 0.7% Native American, 1.1% Asian, 0.1%

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 ...

, 1.2% from other races, and 2.2% from

two or more races Multiracial Americans, also known as mixed-race Americans, are Americans who have mixed ancestry of two or more races. The term may also include Americans of mixed-race ancestry who self-identify with just one group culturally and socially (cf. t ...

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 3.8% of the population. There were 23,071

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, out of which 38.9% had children under the age of 18 living with them, 61.4% 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, 9.5% had a female householder with no husband present, and 25.4% were non-families. 21.7% of all households were made up of individuals, and 8.1% had someone living alone who was 65 years of age or older. The average household size was 2.69 and the average family size was 3.15. In the county, the population was spread out, with 26.7% under the age of 18, 8.2% from 18 to 24, 33.0% from 25 to 44, 22.2% from 45 to 64, and 9.8% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 113.50 males. For every 100 females age 18 and over, there were 116.90 males. The median income for a household in the county was $48,114, and the median income for a family was $55,805. Males had a median income of $40,047 versus $26,029 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 $20,292. About 4.8% of families and 6.7% 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 8.8% of those under age 18 and 7.5% of those age 65 or over.

Government

Presidential elections

Laws

Leavenworth County was a prohibition, or "dry", county until the

Kansas Constitution The Wyandotte Constitution is the constitution of the U.S. state of Kansas. Amended many times (including a universal suffrage amendment in 1912), the Wyandotte Constitution is still the constitution of Kansas. Background The Kansas Territory wa ...

was amended in 1986 and voters approved the sale of alcoholic liquor by the individual drink with a 30 percent food sales requirement. The county voted "No" on the

2022 Kansas abortion referendum The 2022 Kansas abortion referendum was a rejected legislatively referred constitutional amendment to the Kansas Constitution that appeared on the ballot on August 2, 2022, alongside primary elections for statewide offices, with early voting f ...

, an anti-abortion ballot measure, by 59% to 41% 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 59% 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 38% in the 2020 presidential election.

Education

Colleges and universities

United States Army Command and General Staff College The United States Army Command and General Staff College (CGSC or, obsolete, USACGSC) at Fort Leavenworth, Kansas, is a graduate school for United States Army and sister service officers, interagency representatives, and international military ...

University of Saint Mary The University of Saint Mary (USM) is a private Catholic university in Leavenworth, Kansas, United States. It is sponsored by the Sisters of Charity of Leavenworth, who established it in 1923 as Saint Mary College. Though it was originally a sch ...

* Leavenworth Normal School (closed)

Unified school districts

School districts include: * Basehor–Linwood USD 458 * Bonner Springs USD 204 * Easton USD 449 * Fort Leavenworth USD 207 * Jefferson County North USD 339 * Kansas City USD * Lansing USD 469 * Lawrence USD 497 * Leavenworth USD 453 * McLouth USD 342 *

Tonganoxie USD 464 Tonganoxie (pronounced ) is a city in Leavenworth County, Kansas, United States and is part of the Kansas City metropolitan area. As of the 2020 census, the population of the city was 5,573. History Tonganoxie was platted in 1866. It was nam ...

Communities

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

Cities

‡ means a community has portions in an adjacent county. *

Basehor Basehor is a city in Leavenworth County, Kansas, United States which is included statistically in the Kansas City metropolitan area. As of the 2020 census, the population of the city was 6,896. History In exchange for extensive Delaware holdi ...

* Bonner Springs‡ *

De Soto De Soto commonly refers to * Hernando de Soto (c. 1500 – 1542), Spanish explorer * DeSoto (automobile), an American automobile brand from 1928 to 1961 De Soto, DeSoto, Desoto, or de Soto may also refer to: Places in the United States of Ameri ...

‡ * Easton *

Lansing Lansing () is the capital city of the U.S. state of Michigan. The most populous city in Ingham County, parts of the city extend into Eaton County and north into Clinton County. It is the sixth-most populous city in Michigan with a popul ...

* Leavenworth (county seat) *

Linwood Linwood may refer to: Places Many of the place names for Linwood come from the presence of linden trees. Australia * Linwood, South Australia *Linnwood, Guildford, 11-35 Byron Road, Guildford, New South Wales Canada * Linwood, Ontario * Linwood, ...

* Tonganoxie

Unincorporated communities

* Fairmount * Fall Leaf *

* Hoge * Jarbalo *

Kickapoo The Kickapoo people (; Kickapoo: Kiikaapoa or Kiikaapoi; ) are an Algonquian-speaking Native American tribe and Indigenous people in Mexico, originating in the region south of the Great Lakes. There are three federally recognized Kickapoo trib ...

Lenape The Lenape (, , ; ), also called the Lenni Lenape and Delaware people, are an Indigenous peoples of the Northeastern Woodlands, Indigenous people of the Northeastern Woodlands, who live in the United States and Canada. The Lenape's historica ...

* Lowemont * Millwood *

Reno Reno ( ) is a city in the northwest section of the U.S. state of Nevada, along the Nevada–California border. It is the county seat and most populous city of Washoe County, Nevada, Washoe County. Sitting in the High Eastern Sierra foothills, ...

* Springdale *

Wadsworth Wadsworth may refer to: People * Wadsworth (given name) * Wadsworth (surname) Places * Wadsworth, Illinois, United States, a village * Wadsworth, Kansas, United States * Wadsworth, Nevada, United States, a census-designated place * Wadswort ...

Ghost town

Delaware City Delaware City is a city in New Castle County, Delaware, United States. The population was 1,885 as of 2020. It is a small port town on the eastern terminus of the Chesapeake and Delaware Canal and is the location of the Forts Ferry Crossing to ...

Townships

Leavenworth County is divided into ten

townships A township is a form of human settlement or administrative subdivision. Its exact definition varies among countries. Although the term is occasionally associated with an urban area, this tends to be an exception to the rule. In Australia, Canad ...

. The cities of

and Leavenworth are considered ''governmentally independent'' and are excluded from the census figures for the townships. 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

Sean Malto Sean Malto (born September 9, 1989) is an American professional skateboarder. Early life Malto is from Lansing, Kansas. He is of Euro-American and Filipino descent. Malto started skateboarding at the age of 10 at the hands of the inspiration o ...

, professional skateboarder *

Wayne Simien Wayne Anthony Simien Jr. (born March 9, 1983) is an American former professional basketball player, who last played with Spain's Cáceres Ciudad de Baloncesto. He was a member of the Miami Heat when they won the 2006 NBA championship. Simien p ...

, professional basketball player

References

External links

;County *
Leavenworth County - Directory of Public Officials
;Maps * Leavenworth County Maps
CurrentHistoric
KDOT * Kansas Highway Maps
CurrentHistoric
KDOT * Kansas Railroad Maps
Current19961915
KDOT and Kansas Historical Society {{coord, 39, 14, N, 95, 02, W, type:adm2nd_region:US-KS, display=title Kansas counties 1855 establishments in Kansas Territory Kansas counties on the Missouri River