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There are 114 counties and one independent city in the U.S. State of Missouri. Following the Louisiana Purchase and the admittance of Louisiana into the United States in 1812, five counties were formed out of the Missouri Territory at the first general assembly: Cape Girardeau, New Madrid, Saint Charles, Saint Louis, and Ste. Genevieve.
A map of Missouri Counties with County seats and a satellite image of Missouri with County outlines.
Missouri County Map, List of Counties in Missouri with Seats. The U.S. state of Missouri is divided into 14 counties and 1 Independent city. Explore the Missouri County Map, all Counties list along with their County Seats in alphabetical order and their population, areas and the date of formation.
Among Missouri’s counties, St. Louis County is the most populous, encompassing a large metropolitan area with numerous county seats, each offering its own unique attractions. In contrast, Schuyler County is one of the smallest in terms of population, with a more tranquil and rural setting.
- Missouri (MO) on The Us Map
- Map of Missouri Counties
- Interactive Map of Missouri Counties
- Largest Missouri Counties by Population
- Smallest Missouri Counties by Population
- Notable Counties in Missouri
There are 114 counties in Missouriand one independent city (St. Louis). These counties each have their own county seat and local government, performing administrative functions such as maintaining roads, prosecuting criminals, and collecting taxes. In this post, we provide a detailed map of counties in Missouri as well as detailed information about...
Below is a map of the 114 counties of Missouri(you can click on the map to enlarge it and to see the major city in each county).
Click on any of the counties on the map to see its population, economic data, time zone, and zip code (the data will appear below the map). Data is sourced from the US Census 2021.
St. Louis County
St. Louis County shares its eastern boundary with the city of St. Louis and is the most populous county in Missouri. With a rich history dating back to its establishment in 1812, the county was named after the French King Louis IX. The county’s administrative center, Clayton, combines suburban tranquility with a growing business sector. The county is a cultural melting pot, home to numerous attractions like the Saint Louis Art Museum, Missouri History Museum, and the St. Louis Zoo. Its educat...
Jackson County
Jackson County, located in the western part of Missouri, is named after President Andrew Jackson. Kansas City, its largest city, is known for its jazz heritage, fountains, and distinctive barbecue cuisine. The county was established in 1826and has since become a hub of commerce and culture. The county seat, Independence, is famously known as the hometown of President Harry S. Truman. Jackson County’s attractions include the Truman Presidential Library and Museum, the Nelson-Atkins Museum of A...
St. Charles County
St. Charles County, a flourishing region to the northwest of St. Louis, was established in 1812and named in honor of Saint Charles Borromeo. As the county seat, the city of St. Charles is famous for its meticulously preserved historic district, showcasing landmarks from the Lewis and Clark Expedition. The county is celebrated for its vibrant wine country, nestled in the picturesque Missouri River Valley. Wineries and vineyards dot the landscape, drawing visitors for wine tastings and scenic v...
Worth County
Worth County is the smallest by population in Missouri, and it holds a unique charm in its quiet, rural landscapes. Established in 1861and named after General William J. Worth, a hero of the Mexican-American War, the county is nestled in the northwest corner of the state, showcasing the serene beauty of rural Missouri. Grant City, the county seat, encapsulates the quaint and close-knit nature of the county. The town’s historic courthouse, dating back to the late 19th century, stands as a test...
Mercer County
Mercer County, situated in northern Missouri, was established in 1845. Named after General Hugh Mercer, who served in the American Revolutionary War, the county is known for its agricultural landscape and small-town environment. Princeton, the county seat, is a community that reflects the county’s agricultural heritage. The town’s historical significance is visible in its architecture and local museum, which chronicles the county’s development and history. The town’s attractionsinclude outdoo...
Knox County
Knox County, located in northeastern Missouri, was also established in 1845. Its name honors Henry Knox, a major general in the American Revolutionary War and the first United States Secretary of War. This county is characterized by its rolling farmlands and historical landmarks. Edina, the county seat, retains a sense of historical charm. The Knox County Courthouse, a prominent feature in the town, is a symbol of the county’s long-standing history. Edina’s downtown area, with its classic tow...
Boone County
Established in 1820, Missouri’s Boone County is notable for hosting Columbia, a vibrant city that is home to the University of Missouri, the state’s largest university. The county was named after the famous frontiersman Daniel Boone and is centrally located in Missouri. Columbia, the county seat, is a hub for arts and culture, hosting numerous festivals like the True/False Film Fest and the Roots N Blues N BBQ Festival. These events, along with a thriving local music and theater scene, contri...
Clay County
Clay County, established in 1822in northwestern Missouri, is rich in historical significance. It gained prominence as the birthplace of the infamous outlaw Jesse James and is known for its diverse urban and rural landscapes. The county’s history is deeply intertwined with the American frontier and the Civil War. The county seat, Liberty, is a city that balances historical preservation with modern development. Key attractions include the historic Liberty Jail, a significant site for the Latter...
Taney County
Taney County, established in 1837 in southwestern Missouri, is named after Roger B. Taney, the fifth Chief Justice of the United States. The county is most famous for Branson, a major national tourist destinationknown for its vibrant entertainment industry, including live music shows, theaters, and family attractions. Branson, situated within Taney County, offers a unique blend of entertainment and natural beauty. Nestled in the Ozark Mountains, the city is home to attractions like Silver Dol...
It is bounded by the City of St. Louis and the Mississippi River to the east, the Missouri River to the north, and the Meramec River to the south. At the 2020 census, the total population was 1,004,125, [1] making it the most populous county in Missouri. Its county seat is Clayton. [2]
[1] making it the second-most populous county in the state (after St. Louis County in the east). [2][3] Although Independence retains its status as the original county seat, Kansas City, Missouri, serves as a second county seat and the center of county government. [4] .
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