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 2026 population of 6,022. Chillicothe is currently declining at a rate of -0.25% annually and its population has decreased by -1.46% since the most recent census, which recorded a population of 6,111 in 2020.

The median household income in Chillicothe is $66,132 with a poverty rate of 3.7%. The median age in Chillicothe is 51.2 years: 42.4 years for males, and 53.9 years for females. For every 100 females there are 100.4 males.

6K
Total Population
1,142
Density (mi²)
-15 -0.25%
Growth

Chillicothe Population

Chillicothe Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20266,022-15-0.25%
20256,037-15-0.25%
20246,052350.58%
20236,017140.23%
20226,003-49-0.81%
20216,052-77-1.26%
20206,111951.58%
20196,016-62-1.02%
20186,078-57-0.93%
20176,135-75-1.21%
20166,210-26-0.42%
20156,236911.48%
20146,145-36-0.58%
20136,181510.83%
20126,130130.21%
20116,117280.46%
20106,089-8-0.13%
20005,996370.62%
19905,959-217-3.51%
19806,1761242.05%
19706,0522,99898.17%
19603,05428710.37%
19502,76700%

Median Age

Overall: 51.2 years
Female: 53.9 years
Male: 42.4 years

Chillicothe Adults

There are 4,929 adults, (1,548 of whom are seniors) in Chillicothe.

Sex Ratio

Female: 2,944 (49.9%)
Male: 2,956 (50.1%)

Demographics

The racial composition of Chillicothe includes 95.08% White, and smaller percentages for Black or African American, Asian and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White5,61095.08%
Two or more races2213.75%
Black or African American350.59%
Asian340.58%
Race
Population ↓
Percentage (of total)
Two or more races1662.81%
Race
Population ↓
Percentage (of total)
White5,61095.08%
Two or more races550.93%
Black or African American350.59%
Asian340.58%

Chillicothe Marital Status

Economics and Income Statistics

Chillicothe 's average per capita income is $50,048. Household income levels show a median of $66,132. The poverty rate stands at 3.7%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$82,713-
Families$70,781$96,469
Households$66,132$82,178
Non Families$54,200$61,364

$50,048

Average Income

$66,132

Median Household Income

3.7%

Poverty Rate

Nearby Cities

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)