Jefferson County, IL — Population & Demographics
Jefferson County, IL has a population of 36,808. The median household income is $61,102 and the median age is 41.1.
36,808
Population
$61,102
Median Income
$118,400
Median Home Value
41.1
Median Age
Race & Ethnicity
| White | 84.9% |
| Black or African American | 6.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.2% |
| Two or More Races | 0.0% |
Economy & Income
$61,102
Median Household Income
$31,541
Per Capita Income
11.4%
Poverty Rate
3.8%
Unemployment
Housing
$118,400
Median Home Value
$862
Median Rent
71.9%
Homeownership
Education
91.4%
High School+
18.4%
Bachelor's+
Frequently Asked Questions
Jefferson County, IL has a population of 36,808 according to Census ACS 2023 data.
The median household income in Jefferson County, IL is $61,102.
Data from the American Community Survey (ACS) 5-Year estimates.