Warrensburg is a city located in Johnson County Missouri. It is also the county seat of Johnson County. With a 2020 population of 20,758, it is the 35th largest city in Missouri and the 1796th largest city in the United States . Warrensburg is currently growing at a rate of 0.83% annually and its population has increased by 10.19% since the most recent census, which recorded a population of 18,838 in 2010. Warrensburg reached it's highest population of 20,758 in 2021. Spanning over 9 miles, Warrensburg has a population density of 2,207 people per square mile.
The average household income in Warrensburg is $62,186 with a poverty rate of 23.70%. The median rental costs in recent years comes to $773 per month, and the median house value is $160,400. The median age in Warrensburg is 25.1 years, 25 years for males, and 25.3 years for females.