Rushville is a city in Schuyler County, Illinois, United States. The population was 3,212 at the 2000 census. It is the county seat of Schuyler County.
As of the census of 2000, there were 3,212 people, 1,397 households, and 888 families residing in the city. The population density was 2,043.7 people per square mile (789.9/km²). There were 1,530 housing units at an average density of 973.5 per square mile (376.3/km²). The racial makeup of the city was 99.13% White, 0.06% African American, 0.09% Native American, 0.06% Asian, 0.03% Pacific Islander, 0.22% from other races, and 0.40% from two or more races. Hispanic or Latino of any race were 0.47% of the population.
There were 1,397 households out of which 25.8% had children under the age of 18 living with them, 50.8% were married couples living together, 10.2% had a female householder with no husband present, and 36.4% were non-families. 33.2% of all households were made up of individuals and 18.0% had someone living alone who was 65 years of age or older. The average household size was 2.22 and the average family size was 2.78.