Assumption is a city in Christian County, Illinois, United States. The population was 1,155 as of the 2020 census.
The Illinois State Bank Building located at 201 N. Chestnut St.
Christian County, Illinois
Christian County is a county located in the U.S. state of Illinois. As of the 2020 census, the population was 34,032. Its county seat is Taylorville.
Christian County Courthouse in Taylorville