Jefferson County, Illinois

Total Population: 36,808

County Seat: Mount Vernon

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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 fields

Racial & Ethnic Composition

White (Non-Hispanic)84.3%
Black (Non-Hispanic)6.2%
Two or More Races5.5%
Hispanic or Latino2.7%
Asian (Non-Hispanic)0.9%
Other Race0.2%
Am. Indian / Alaska Native0.2%

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 fields

High School Graduate or Higher (25+)

91.4%

Bachelor's Degree or Higher (25+)

18.4%

Enrolled in College (18+)

4.1%

Economics

6 fields

Median 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 fields

Median 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.