Johnson County Courthouse
Location of Warrensburg, Missouri
WARRENSBURG MISSOURI Latitude and Longitude:
|• Total||8.92 sq mi (23.10 km2)|
|• Land||8.85 sq mi (22.92 km2)|
|• Water||0.07 sq mi (0.18 km2)|
|Elevation||863 ft (263 m)|
|Population ( 2010) |
|• Estimate (2016) ||20,251|
|• Density||2,100/sq mi (820/km2)|
|Time zone||UTC-6 ( Central (CST))|
|• Summer ( DST)||UTC-5 (CDT)|
|FIPS code||29-77092 |
|GNIS feature ID||0728362 |
Warrensburg is a city in Johnson County, Missouri, United States. The population was 18,838 at the 2010 census. It is the county seat of Johnson County.  The Warrensburg Micropolitan Statistical Area consists of Johnson County. It is home to the University of Central Missouri.
The phrase "Man's best friend" is based on a famous trial over the killing of Old Drum, a dog commemorated by a statue in front of the Warrensburg Courthouse.
Warrensburg is located at  According to the United States Census Bureau, the city has a total area of 8.92 square miles (23.10 km2), of which, 8.85 square miles (22.92 km2) is land and 0.07 square miles (0.18 km2) is water. .
|U.S. Decennial Census |
The current mayor is Danielle Johnston. 
As of the census  of 2010, there were 18,838 people, 6,803 households, and 3,400 families residing in the city. The population density was 2,128.6 inhabitants per square mile (821.9/km2). There were 7,450 housing units at an average density of 841.8 per square mile (325.0/km2). The racial makeup of the city was 85.3% White, 7.5% African American, 0.5% Native American, 2.8% Asian, 0.2% Pacific Islander, 0.7% from other races, and 3.1% from two or more races. Hispanic or Latino of any race were 3.1% of the population.
There were 6,803 households of which 26.5% had children under the age of 18 living with them, 36.1% were married couples living together, 10.4% had a female householder with no husband present, 3.5% had a male householder with no wife present, and 50.0% were non-families. 31.2% 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 2.32 and the average family size was 2.96.
The median age in the city was 23.7 years. 17.6% of residents were under the age of 18; 36.2% were between the ages of 18 and 24; 21.8% were from 25 to 44; 15% were from 45 to 64; and 9.5% were 65 years of age or older. The gender makeup of the city was 49.5% male and 50.5% female.
As of the census  of 2000, there were 16,340 people, 5,951 households, and 3,035 families residing in the city. The population density was 1,938.5 people per square mile (748.4/km²). There were 6,380 housing units at an average density of 756.9 per square mile (292.2/km²). The racial makeup of the city was 90% White, 6.46% African American, 0.64% Native American, 2.79% Asian, 0.14% Pacific Islander, 0.78% from other races, and 2.28% from two or more races. Hispanic or Latino of any race were 2.44% of the population.
There were 3,951 households out of which 26.6% had children under the age of 18 living with them, 38.5% were married couples living together, 9.9% had a female householder with no husband present, and 49.0% were non-families. 30.8% of all households were made up of individuals and 8.5% had someone living alone who was 65 years of age or older. The average household size was 2.29 and the average family size was 2.93.
In the city, the population was spread out with 18.0% under the age of 18, 36.5% from 18 to 24, 22.8% from 25 to 44, 12.9% from 45 to 64, and 9.7% who were 65 years of age or older. The median age was 23 years. For every 100 females, there were 95.8 males. For every 100 females age 18 and over, there were 95.4 males.
The median income for a household in the city was $29,332, and the median income for a family was $45,845. Males had a median income of $30,354 versus $22,154 for females. The per capita income for the city was $14,714. About 13.6% of families and 24.3% of the population were below the poverty line, including 17.1% of those under age 18 and 11.4% of those age 65 or over.
Public elementary and secondary schools in Warrensburg are part of the Warrensburg R-VI School District. The district includes four elementary schools for grades preschool through fifth grade. Maple Grove and Ridgeview Elementary schools are for grades preschool through second grade while Martin Warren and Sterling elementary schools house students in grades three through five. Warrensburg Middle School serves students in grades six through eight and Warrensburg High School is for grades nine through 12. The district also operates the Reese Education Center, which houses the Gateway Alternative School and the district's special needs and gifted education programs. The Warrensburg Area Career Center specializes in vocational education for high school-aged students in Warrensburg and Johnson County. 
The city is also home of the University of Central Missouri (UCM), known as Central Missouri State University until 2006. The university offers programs in 150 areas of study and serves approximately 12,500 students as of 2014.
- US 50 - Links to Lee's Summit and further to Kansas City to the west and Sedalia to the east.
- Route 13 - or Maguire Street, essentially divides the town in half though Old Highway 13 or Holden Street forms the division between east and west. This is a highway linking Warrensburg to Interstate 70 to the north, and Truman Lake to the south.
- Warrensburg (Amtrak station) provides Amtrak service to/from Kansas City and St. Louis and other cities via connecting trains.
- Jefferson Lines bus service to/from Kansas City and Springfield, Missouri
- "Emergency Taxi Service" – Taxi service serving the Johnson County area.
- The Daily Star-Journal – daily
- DigitalBurg.com – Online Local news provided by The Muleskinner, the University of Central Missouri (UCM) weekly student newspaper.
- KMOS-TV (PBS), PBS 6.1, CREATE CHANNEL 6.2 and PBS WORLD 6.3. The city of license is Syracuse, MO. The offices and studios are located on the campus of UCM in Warrensburg.
- John William 'Blind' Boone (1864–1927); African-American concert pianist, composer and principal for the Blind Boone Concert Company. He spent his youth in Warrensburg and a park and festival are named for him.
- Errett Lobban Cord; U.S. automobile manufacturer and advocate of front-wheel-drive vehicles. He was born and raised in Warrensburg.
- Ada and Minna Everleigh; proprietors of the Everleigh Club brothel in Chicago
- Mary Fallin; Governor of Oklahoma and former Lieutenant Governor of Oklahoma
- Douglas Eads Foster; Los Angeles, California, City Council member, 1927–29, born in Warrensburg
- Dean Hughes (born 1943); taught English at the University of Central Missouri for several years; the setting of his best-selling series of children's books starring Nutty Nutsell is based on the lab school run by the university's education program in the 1980s
- Henry Warren Ogden (1842-1905); member of the United States House of Representatives from Louisiana's 4th congressional district from 1894 to 1899 and Speaker of the Louisiana House of Representatives from 1884 to 1888; a native of Abingdon, Virginia, he was reared in Warrensburg
- Sidney Toler; (April 28, 1874 – February 12, 1947), actor, writer, and the second non-Asian to play the role of Charlie Chan in films, was born in Warrensburg
- Kimberly Wyatt; former member of female pop group The Pussycat Dolls, currently a judge on the UK reality talent show dance competition Got To Dance
- Shawn Pelton (born June 1, 1963, in Warrensburg); musician who has collaborated with Backstreet Boys, Sheryl Crow, Shawn Colvin, Bruce Springsteen, Celine Dion and Billy Joel. Also the longtime drummer in the house band for Saturday Night Live
- Curtis Niles Cooper; mathematician and professor at the University of Central Missouri, in the Department of Mathematics and Computer Science
- James McCown (1817–1867), Civil War colonel and commander of the Confederate 5th Regiment of Missouri Infantry
Warrensburg was mentioned in the 1983 American Television movie The Day After, which largely takes place in eastern Kansas and western Missouri. The city was one of the locations considered for the principal filming location and setting before the production team chose Lawrence, Kansas. 
- "US Gazetteer files 2010". United States Census Bureau. Archived from the original on 2012-01-24. Retrieved 2012-07-08.
- "American FactFinder". United States Census Bureau. Retrieved 2012-07-08.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- Eaton, David Wolfe (1916). How Missouri Counties, Towns and Streams Were Named. The State Historical Society of Missouri. p. 181.
- "Post Offices". Jim Forte Postal History. Retrieved 19 October 2016.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
- "City Council". City of Warrensburg. Retrieved 2017-04-28.
- "Warrensburg Schools". Warrensburg R-VI School District. 2015. Retrieved May 1, 2015.
- "Locations". Trails Regional Library. Retrieved 25 March 2018.
- Nicholas Meyer (director) (1983-11-20). The Day After (Motion Picture). ABC Circle Films. Retrieved 2009-02-17.