Johnson County, Illinois

Total Population: 13,350

County Seat: Vienna

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Median Home Value

$148,200

Owner-occupied units

Median Household Income

$65,203

Across all households

Median Age

42.7 yrs

Across all residents

Bachelor's Degree+

18.8%

Adults 25 and older

Nearby Counties

Demographics

14 fields

Racial & Ethnic Composition

White (Non-Hispanic)81.0%
Black (Non-Hispanic)7.5%
Two or More Races7.0%
Hispanic or Latino4.2%
Asian (Non-Hispanic)0.2%

Under 18 Years

17.8%

65 Years and Over

20.4%

Male

57.0%

Female

43.0%

U.S. Citizens (18+)

99.5%

No Health Insurance

7.9%

Education

3 fields

High School Graduate or Higher (25+)

85.9%

Bachelor's Degree or Higher (25+)

18.8%

Enrolled in College (18+)

4.1%

Economics

6 fields

Median Household Income

$65,203

Mean Household Income

$77,971

Per Capita Income

$28,028

Unemployment Rate (16+)

2.4%

In Labor Force (19–64)

66.9%

SNAP / Food Stamps

13.0%

Housing & Households

13 fields

Median Home Value

$148,200

Median Rent

$634/mo

Total Housing Units

5,538

Owner-Occupied

84.7%

Renter-Occupied

15.3%

Vacancy Rate

25.4%

Married Couple Households

50.1%

Cohabiting Couple Households

Male Householder, No Partner

16.3%

Female Householder, No Partner

27.2%

Average Household Size

2.78

Broadband Internet Access

79.1%

Housing Built Since 2010

10.0%

Source: U.S. Census Bureau, American Community Survey 2023 5-Year Estimates. County FIPS 17087.