Jefferson County, IL
Population: 36,808 · Median Income: $61,102 · 571 sq mi
Population
36,808
Median Income
$61,102
Median Home Value
$118,400
Unemployment
6.5%
Median Age
41.1 yrs
Poverty Rate
14.2%
Median Rent
$862/mo
Land Area
571 sq mi
Cities
11
2024 Lean
R+47.8%
Jefferson County is a county in Illinois with a population of 36,808. The median household income is $61,102. The median home value is $118,400. The unemployment rate is 6.5%. The median age is 41.1 years. There are 11 cities in Jefferson County.
Explore Jefferson County Data
2024 Election Results
Source: County Election DataWinner
Republican
Dem Votes
4,240
25.5%
GOP Votes
12,189
73.3%
Total Votes
16,639