Clinton County Flag

Clinton County

State:
Illinois
County Seat:
Carlyle

Clinton County's estimated 2025 population is 36,481 with a growth rate of -0.41% in the past year according to the most recent United States census data. Clinton County is the 36th largest county in Illinois. The 2010 population was 37,833 and has seen a growth of -3.57% since that time.

36,481
Total Population
77
Population Density (miĀ²)
36
Population Rank (State)
-152 -0.41%
Annual Population Growth

Clinton County Population

Clinton County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Clinton County includes 91.36% White, 3.15% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Race
Population
Percentage (of total)
White33,71091.36%
Two or more races1,3873.76%
Black or African American1,1643.15%
Other race3901.06%
Asian2060.56%
Native American420.11%
Native Hawaiian or Pacific Islander00%

Clinton County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Clinton County's average per capita income is $53,501. Household income levels show a median of $82,314. The poverty rate stands at 7.5%.

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$110,213-
Families$102,033$122,720
Households$82,314$104,928
Non Families$43,833$66,178

$53,501

Average Income

$82,314

Median Household Income

7.5%

Poverty Rate