Taylorville is a city in and the county seat of Christian County, Illinois, United States.[4] The population was 10,506 at the 2020 census, making it the county's largest city.

History
Taylorville was founded on May 24, 1839, and was named after John Taylor, a planning commissioner for the state of Illinois.[5]
Taylorville was known (in the early to mid-1990s) to have had a high rate of neuroblastoma, a cancer affecting the adrenal gland and striking children.[6] The local power company Central Illinois Public Service Company was sued and lost for contaminating the groundwater in 1994.[7]