Jefferson County, Illinois
IL · FIPS 17081 · ACS 2024 5-Year Estimates
| Metric | Value | vs National | Rank | Percentile |
|---|---|---|---|---|
| Total Population | 36,550 | — | #1,304 / 3,222 | |
| Median Household Income | $63,118 | -16.0% | #1,783 / 3,222 | |
| Median Age | 41.2 years | +5.9% | #1,736 / 3,222 | |
| Median Home Value | $126,000 | -55.3% | #2,560 / 3,222 | |
| Median Gross Rent | $885 | -23.9% | #1,516 / 3,222 | |
| Poverty Rate | 13.5% | +7.4% | #1,653 / 3,222 | |
Demographics
Jefferson County has a population of 36,550, making it the #1,304 most populous county in the US. The median age is 41.2 years, which is 5.9% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Household Type
Economy
The median household income in Jefferson County is $63,118, ranking #1,783 out of 3,222 counties — 16.0% below the national median. The poverty rate is 13.5% and unemployment stands at 5.8%.
Median Household Income Trend
Rankings →Poverty Rate Trend
Rankings →Housing
The median home value in Jefferson County is $126,000 (-55.3% vs national). Renters pay a median of $885/mo and the homeownership rate is 71.7%.
Median Home Value Trend
Rankings →Health
92.8% of residents in Jefferson County have health insurance coverage, which is 1.2% above the national rate.
About Jefferson County, Illinois
Jefferson County, Illinois has a total population of 36,550, making it the 1,304th most populous county in the United States. The median age in Jefferson County is 41.2 years, which is 5.9% above the national median of 38.9 years.
The median household income in Jefferson County is $63,118, which ranks #1,783 of 3,222 counties nationwide. This is 16.0% below the national median of $75,149. The poverty rate is 13.5%, higher than the national rate of 12.6%. The unemployment rate stands at 5.8%.
The median home value in Jefferson County is $126,000, 55.3% below the national median. Renters in Jefferson County pay a median gross rent of $885 per month. The homeownership rate is 71.7%, compared to the national rate of 64.4%.
In Jefferson County, 18.2% of residents aged 25 and older hold a bachelor's degree or higher, 46.1% below the national average of 33.7%. Health insurance coverage stands at 92.8% of the population. The average commute time for workers is 21.8 min.
Jefferson County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 83.6% of the population, followed by Two or More Races (6.0%) and Black (non-Hispanic) (5.8%).
All data for Jefferson 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.