Chillicothe is located in Illinois. Chillicothe, Illinois has a population of 6,272. Chillicothe is less family-centric than the surrounding county with 18.03% of the households containing married families with children. The county average for households married with children is 27.66%.
The median household income in Chillicothe, Illinois is $54,297. The median household income for the surrounding county is $58,426 compared to the national median of $69,021. The median age of people living in Chillicothe is 43.3 years.
The average high temperature in July is 86.1 degrees, with an average low temperature in January of 16.7 degrees. The average rainfall is approximately 39 inches per year, with 21.3 inches of snow per year.
