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County in Illinois

Boone County

About 53,200 people, median household income $84,600.

District lines run through Boone County, so who represents you here depends on where you live. Search your address to see yours.

Who lives in Boone County

Census survey estimates for 2020 to 2024, rounded.

People

Population
53,200
Median age
39.7 years
Under 18
24%
65 and over
17%
Veterans, of adults
6%
Speak another language at home
21%

Race and ethnicity

Hispanic or Latino, of any race
26%
White, not Hispanic
68%
Black, not Hispanic
2%
Asian, not Hispanic
1%

Income and housing

Median household income
$84,600
Below the poverty line
10%
Bachelor's or higher, adults 25+
24%
Owner-occupied homes
82%
Median home value
$217,000

2024 vote for president

Donald Trump, Republican
56.4%
Kamala Harris, Democrat
41.9%
Other candidates
1.7%

Votes counted, by precinct. Source: MIT Election Data and Science Lab, precinct returns (public domain).

Represent all of Boone County

Boone County's districts (9)

U.S. House (2)

Illinois Senate (3)

Illinois House (4)

Towns (10)

Cities, villages and unincorporated communities, with the number of people in the county’s part of each at the 2020 Census.

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024; towns and counties from the 2020 Census, Demographic and Housing Characteristics. Figures rounded by us. Retrieved 2026-10-19. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.