There are 114

counties A county is a geographic region of a country used for administrative or other purposesChambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...

and one

independent city An independent city or independent town is a city or town that does not form part of another general-purpose local government entity (such as a province). Historical precursors In the Holy Roman Empire, and to a degree in its successor states ...

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 sove ...

Missouri Missouri is a state in the Midwestern region of the United States. Ranking 21st in land area, it is bordered by eight states (tied for the most with Tennessee): Iowa to the north, Illinois, Kentucky and Tennessee to the east, Arkansas t ...

. Following the

Louisiana Purchase The Louisiana Purchase (french: Vente de la Louisiane, translation=Sale of Louisiana) was the acquisition of the territory of Louisiana by the United States from the French First Republic in 1803. In return for fifteen million dollars, or app ...

and the admittance of

Louisiana Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is borde ...

into the United States in 1812, five counties were formed out of the

Missouri Territory The Territory of Missouri was an organized incorporated territory of the United States that existed from June 4, 1812, until August 10, 1821. In 1819, the Territory of Arkansas was created from a portion of its southern area. In 1821, a southea ...

at the first general assembly:

Cape Girardeau Cape Girardeau ( , french: Cap-Girardeau ; colloquially referred to as "Cape") is a city in Cape Girardeau and Scott Counties in the U.S. state of Missouri. At the 2020 census, the population was 39,540. The city is one of two principal citi ...

, New Madrid, Saint Charles, Saint Louis, and Ste. Genevieve. Most subsequent counties were apportioned from these five original counties. Six more counties were added through the 1836

Platte Purchase The Platte Purchase was a land acquisition in 1836 by the United States government from American Indian tribes of the region. It comprised lands along the east bank of the Missouri River and added to the northwest corner of the state of Miss ...

, the acquired lands of which formed the northwest tip of the state and consisted of

Andrew Andrew is the English form of a given name common in many countries. In the 1990s, it was among the top ten most popular names given to boys in List of countries where English is an official language, English-speaking countries. "Andrew" is freq ...

Atchison Atchison may refer to: Places In the United States: *Atchison, California, a former settlement *Atchison, Kansas, a city *Atchison County, Kansas *Atchison County, Missouri People with the surname * Bob Atchison (born 1941), Canadian drag race ...

, Buchanan, Holt, Nodaway, and Platte counties. In Missouri, the county level of government comes between those of the city and the state. Its primary responsibilities include maintaining roads, providing security, prosecuting criminals, and collecting taxes. Elected officials at this level include a sheriff,

prosecuting attorney A prosecutor is a legal representative of the prosecution in states with either the common law adversarial system or the civil law inquisitorial system. The prosecution is the legal party responsible for presenting the case in a criminal trial ...

, and assessor. Most of the counties in Missouri are named after politicians. One such county,

Cass Cass may refer to: People and fictional characters * Cass (surname), a list of people * Cass (given name), a list of people and fictional characters * Big Cass, ring name of wrestler William Morrissey * Cass, in British band Skunk Anansie * Ca ...

, was originally named Van Buren County after President

Martin Van Buren Martin Van Buren ( ; nl, Maarten van Buren; ; December 5, 1782 – July 24, 1862) was an American lawyer and statesman who served as the eighth president of the United States from 1837 to 1841. A primary founder of the Democratic Party, he ...

, and was changed to its present name in support of Van Buren's Democratic opponent Lewis Cass during the presidential election of 1848. Other counties are named after war heroes, natural resources, explorers, and former U.S. territories. The city of

St. Louis St. Louis () is the second-largest city in Missouri, United States. It sits near the confluence of the Mississippi and the Missouri Rivers. In 2020, the city proper had a population of 301,578, while the bi-state metropolitan area, which e ...

is an independent city, and is not within the limits of a county. Its residents voted to secede from St. Louis County in 1876. Throughout the United States, St. Louis is one of three independent cities outside the state of

Virginia Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...

(the other two are

Baltimore Baltimore ( , locally: or ) is the List of municipalities in Maryland, most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic (United States), Mid-Atlantic, and List of United States cities by popula ...

, Maryland and Carson City, Nevada). Population figures are based on the 2021

Census A census is the procedure of systematically acquiring, recording and calculating information about the members of a given population. This term is used mostly in connection with national population and housing censuses; other common censuses in ...

estimate. According to that census estimate, the population of Missouri is 6,168,187, an increase of 0.2% from 2020. The average population of Missouri's counties is 53,636; St. Louis County is the most populous (997,187), and Worth County is the least (1,983). The average land area is . The largest county is Texas County (1,179 sq mi, 3,054 km²) and the smallest is St. Louis city (61.9 sq mi, 160 km²).U.S. Census Bureau
, ("Missouri County Selection Map") The

Federal Information Processing Standard The Federal Information Processing Standards (FIPS) of the United States are a set of publicly announced standards that the National Institute of Standards and Technology (NIST) has developed for use in computer systems of non-military, America ...

(FIPS) is used by the U.S. government to uniquely identify counties, and is provided for each entry. These codes link to the

United States Census Bureau The United States Census Bureau (USCB), officially the Bureau of the Census, is a principal agency of the U.S. Federal Statistical System, responsible for producing data about the American people and economy. The Census Bureau is part of t ...

's "quick facts" for each county. To distinguish from counties in other states, one must use Missouri's FIPS code, 29. For example, Adair County's unique nationwide identifier is 29001.

Counties

Former county names

References

External links

Missouri Association of Counties

from

University of Missouri The University of Missouri (Mizzou, MU, or Missouri) is a public land-grant research university in Columbia, Missouri. It is Missouri's largest university and the flagship of the four-campus University of Missouri System. MU was founded in ...

Division of Special Collections, Archives, and Rare Books {{featured list

Counties A county is a geographic region of a country used for administrative or other purposesChambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...

Counties

Former county names

See also

References

External links