Charleston is located in Illinois. Charleston, Illinois has a population of 20,780. Charleston is less family-centric than the surrounding county with 19% households with children. The county percentage for households with children is 23%.
The median household income in Charleston, Illinois is $45,212. The median household income for the surrounding county is $48,090 compared to the national median of $66,222. The median age of people living in Charleston is 23.7 years.
The average high temperature in July is 87.8 degrees, with an average low temperature in January of 18.6 degrees. The annual precipitation is 41.73.