Clark County's estimated 2025 population is 14,944 with a growth rate of -0.48% in the past year according to the most recent United States census data. Clark County is the 71st largest county in Illinois. The 2010 population was 16,291 and has seen a growth of -8.27% since that time.
Data after 2023 is projected based on recent change
The racial composition of Clark County includes 95.85% White, and smaller percentages for Two or more races, Black or African American, other race, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 14,692 | 95.85% |
| Two or more races | 456 | 2.97% |
| Black or African American | 106 | 0.69% |
| Other race | 44 | 0.29% |
| Asian | 25 | 0.16% |
| Native American | 5 | 0.03% |
Married
Widowed
Divorced
Separated
Never Married
Clark County's average per capita income is $46,712. Household income levels show a median of $70,625. The poverty rate stands at 9.49%.
Name | Median | Mean |
|---|---|---|
| Married Families | $101,014 | - |
| Families | $84,951 | $97,285 |
| Households | $70,625 | $83,186 |
| Non Families | $40,076 | $47,923 |
Average Income
Median Household Income
Poverty Rate
