Chillicothe is a city located in Peoria County Illinois. Chillicothe has a 2020 population of 8,031. Chillicothe is currently declining at a rate of -1.00% annually and its population has decreased by -3.89% since the most recent census, which recorded a population of 8,356 in 2010. Chillicothe reached it's highest population of 8,504 in 2015.
The average household income in Chillicothe is $68,554 with a poverty rate of 13.88%. The median rental costs in recent years comes to $747 per month, and the median house value is $128,000. The median age in Chillicothe is 41.5 years, 41.7 years for males, and 41 years for females.