Jefferson County, Illinois
Total Population: 36,808
County Seat: Mount Vernon
Median Home Value
$118,400
Owner-occupied units
Median Household Income
$61,102
Across all households
Median Age
41.1 yrs
Across all residents
Bachelor's Degree+
18.4%
Adults 25 and older
Nearby Counties
Demographics
14 fieldsRacial & Ethnic Composition
Under 18 Years
22.4%
65 Years and Over
19.7%
Male
51.5%
Female
48.5%
U.S. Citizens (18+)
99.2%
No Health Insurance
7.5%
Education
3 fieldsHigh School Graduate or Higher (25+)
91.4%
Bachelor's Degree or Higher (25+)
18.4%
Enrolled in College (18+)
4.1%
Economics
6 fieldsMedian Household Income
$61,102
Mean Household Income
$77,553
Per Capita Income
$31,541
Unemployment Rate (16+)
6.5%
In Labor Force (19–64)
77.2%
SNAP / Food Stamps
17.5%
Housing & Households
13 fieldsMedian Home Value
$118,400
Median Rent
$862/mo
Total Housing Units
16,650
Owner-Occupied
71.9%
Renter-Occupied
28.1%
Vacancy Rate
11.1%
Married Couple Households
47.1%
Cohabiting Couple Households
7.0%
Male Householder, No Partner
18.2%
Female Householder, No Partner
27.7%
Average Household Size
2.38
Broadband Internet Access
85.3%
Housing Built Since 2010
5.6%
Source: U.S. Census Bureau, American Community Survey 2023 5-Year Estimates. County FIPS 17081.