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County in Illinois

McDonough County

About 26,900 people, median household income $52,800.

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

Who lives in McDonough County

Census survey estimates for 2020 to 2024, rounded.

People

Population
26,900
Median age
34.9 years
Under 18
18%
65 and over
19%
Veterans, of adults
5%
Speak another language at home
5%

Race and ethnicity

Hispanic or Latino, of any race
4%
White, not Hispanic
85%
Black, not Hispanic
6%
Asian, not Hispanic
2%

Income and housing

Median household income
$52,800
Below the poverty line
17%
Bachelor's or higher, adults 25+
31%
Owner-occupied homes
64%
Median home value
$108,000

2024 vote for president

Donald Trump, Republican
58.4%
Kamala Harris, Democrat
39.6%
Other candidates
2.1%

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

Represent all of McDonough County

McDonough County's districts

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024; towns and counties from the 2020 Census, 119th Congressional District and 2024 state legislative district tabulation. 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.

Towns (13)

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.