Henry County, Illinois
Located in Illinois, Henry County has a population of 48,643 residents and a median age of 43.6 years, making it the #1,031 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 8.9%. The median home value is $151,600, and the median household income is $71,911, which is 4% below the national median.
Demographics
Henry County has a population of 48,643, making it the #1,031 most populous county in the US. The median age is 43.6 years, which is 12.1% above 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 Henry County is $71,911, ranking #1,055 out of 3,222 counties — 4.3% below the national median. The poverty rate is 8.9% and unemployment stands at 4.8%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Henry County is $151,600 (-46.2% vs national). Renters pay a median of $842/mo and the homeownership rate is 79.9%.
Median Home Value Trend
Rankings →Household Type
Education
In Henry County, 24.7% of adults age 25+ hold a bachelor's degree or higher, which is 26.6% below the national average, ranking #1,263 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Henry County is 77.4 years. 15.5% of adults report poor or fair health and 6.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
15.2% of adults in Henry County smoke , 34.7% are obese , and 22.6% report excessive drinking. The drug overdose death rate is 15.8 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Henry County is 2.9 per 100,000 and the suicide rate is 17.0 per 100,000. Motor vehicle deaths occur at a rate of 9.6 per 100,000.
Suicide Rate Trend
Families & Children
12.7% of children in Henry County live in poverty and the infant mortality rate is 6.1 per 1,000 live births. The teen birth rate is 16.5 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Henry County is 67.9%. The mean commute time is 24.4 min, which is 11.5% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Henry County voted Republican with a margin of 24.5%. The vote was 36.8% Dem / 61.3% Rep. Compared to 2020, the margin shifted 3.1 toward Republicans .
Vote Share Over Time
About Henry County, Illinois
Henry County, Illinois has a total population of 48,643, making it the 1,031st most populous county in the United States. The median age in Henry County is 43.6 years, which is 12.1% above the national median of 38.9 years.
The median household income in Henry County is $71,911, which ranks #1,055 of 3,222 counties nationwide. This is 4.3% below the national median of $75,149. The poverty rate is 8.9%, lower than the national rate of 12.6%. The unemployment rate stands at 4.8%.
The median home value in Henry County is $151,600, 46.2% below the national median. Renters in Henry County pay a median gross rent of $842 per month. The homeownership rate is 79.9%, compared to the national rate of 64.4%.
In Henry County, 24.7% of residents aged 25 and older hold a bachelor's degree or higher, 26.6% below the national average of 33.7%. Health insurance coverage stands at 96.0% of the population. The average commute time for workers is 24.4 min.
Henry County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 87.0% of the population, followed by Hispanic or Latino (6.9%) and Two or More Races (4.0%).
All data for Henry 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.