Chillicothe Flag

Chillicothe

County:
Peoria County
County Seat:
No
Area (mi²):
5.274
State:
Illinois

Chillicothe is a city located in Peoria County, Illinois. Chillicothe has a 2025 population of 5,889. Chillicothe is currently declining at a rate of -0.74% annually and its population has decreased by -3.6% since the most recent census, which recorded a population of 6,109 in 2020.

The average household income in Chillicothe is $80,235 with a poverty rate of 14.5%.The median age in Chillicothe is 43.9 years: 41.3 years for males, and 45.9 years for females.

5.9K
Total Population
1,117
Density (mi²)
-44 -0.74%
Growth

Chillicothe Population

Demographics

Economics and Income Statistics

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)