Douglas County, Illinois
Located in Illinois, Douglas County has a population of 19,751 residents and a median age of 38.7 years, making it the #1,901 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 8.5%. The median home value is $150,400, and the median household income is $77,320, which is 3% above the national median.
Demographics
Douglas County has a population of 19,751, making it the #1,901 most populous county in the US. The median age is 38.7 years, which is 0.5% below the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Douglas County is $77,320, ranking #711 out of 3,222 counties — 2.9% above the national median. The poverty rate is 8.5% and unemployment stands at 2.5%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Douglas County is $150,400 (-46.6% vs national). Renters pay a median of $848/mo and the homeownership rate is 76.9%.
Median Home Value Trend
Rankings →Household Type
Education
In Douglas County, 20.9% of adults age 25+ hold a bachelor's degree or higher, which is 38.1% below the national average, ranking #1,852 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Douglas County is 77.6 years. 19.2% of adults report poor or fair health and 11.6% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
19.0% of adults in Douglas County smoke , 36.7% are obese , and 21.9% report excessive drinking. The drug overdose death rate is 17.0 per 100,000.
Adult Smoking Trend
Safety
The suicide rate is 9.5 per 100,000. Motor vehicle deaths occur at a rate of 21.1 per 100,000.
Suicide Rate Trend
Families & Children
11.8% of children in Douglas County live in poverty . The teen birth rate is 17.3 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Douglas County is 60.7%. The mean commute time is 22.5 min, which is 18.6% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Douglas County voted Republican with a margin of 46.1%. The vote was 26.2% Dem / 72.3% Rep. Compared to 2020, the margin shifted 1.7 toward Republicans .
Vote Share Over Time
About Douglas County, Illinois
Douglas County, Illinois has a total population of 19,751, making it the 1,901st most populous county in the United States. The median age in Douglas County is 38.7 years, which is 0.5% below the national median of 38.9 years.
The median household income in Douglas County is $77,320, which ranks #711 of 3,222 counties nationwide. This is 2.9% above the national median of $75,149. The poverty rate is 8.5%, lower than the national rate of 12.6%. The unemployment rate stands at 2.5%.
The median home value in Douglas County is $150,400, 46.6% below the national median. Renters in Douglas County pay a median gross rent of $848 per month. The homeownership rate is 76.9%, compared to the national rate of 64.4%.
In Douglas County, 20.9% of residents aged 25 and older hold a bachelor's degree or higher, 38.1% below the national average of 33.7%. Health insurance coverage stands at 84.6% of the population. The average commute time for workers is 22.5 min.
Douglas County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 87.4% of the population, followed by Hispanic or Latino (8.5%) and Two or More Races (2.0%).
All data for Douglas County, Illinois comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.