Warrensburg is a village in Macon County, Illinois, United States whose population was 1,289 at the 2000 census, and 1,160 in 2009. It is included in the Decatur, Illinois Metropolitan Statistical Area. Warrensburg was established in 1841.GeographyWarrensburg is located at .According to the 2010 census, Warrensburg has a total area of 0.69sqmi, all land.DemographicsAs of the census of 2000, there were 1,289 people, 500 households, and 364 families residing in the village. The population density was 1,900.6 people per square mile (731.9/km²). There were 527 housing units at an average density of 777.0 per square mile (299.2/km²). The racial makeup of the village was 97.67% White, 0.62% African American, 0.31% Native American, 0.23% Asian, 0.08% from other races, and 1.09% from two or more races. Hispanic or Latino of any race were 0.47% of the population.There were 500 households out of which 35.8% had children under the age of 18 living with them, 58.6% were married couples living together, 10.2% had a female householder with no husband present, and 27.2% were non-families. 22.4% of all households were made up of individuals and 7.8% had someone living alone who was 65 years of age or older. The average household size was 2.56 and the average family size was 3.03.
