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County in Illinois

Marshall County

About 11,600 people, median household income $71,600.

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

Who lives in Marshall County

Census survey estimates for 2020 to 2024, rounded.

People

Population
11,600
Median age
46.1 years
Under 18
20%
65 and over
24%
Veterans, of adults
9%
Speak another language at home
3%

Race and ethnicity

Hispanic or Latino, of any race
4%
White, not Hispanic
92%
Black, not Hispanic
under 1%
Asian, not Hispanic
under 1%

Income and housing

Median household income
$71,600
Below the poverty line
11%
Bachelor's or higher, adults 25+
18%
Owner-occupied homes
79%
Median home value
$143,000

2024 vote for president

Donald Trump, Republican
67.2%
Kamala Harris, Democrat
31.2%
Other candidates
1.6%

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

Represent all of Marshall County

Marshall 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 (9)

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.