County in Illinois
Henry County
About 48,600 people, median household income $71,900.
District lines run through Henry County, so who represents you here depends on where you live. Search your address to see yours.
Who lives in Henry County
Census survey estimates for 2020 to 2024, rounded.
People
- Population
- 48,600
- Median age
- 43.6 years
- Under 18
- 22%
- 65 and over
- 22%
- Veterans, of adults
- 8%
- Speak another language at home
- 5%
Race and ethnicity
- Hispanic or Latino, of any race
- 7%
- White, not Hispanic
- 87%
- Black, not Hispanic
- 1%
- Asian, not Hispanic
- 1%
Income and housing
- Median household income
- $71,900
- Below the poverty line
- 9%
- Bachelor's or higher, adults 25+
- 25%
- Owner-occupied homes
- 80%
- Median home value
- $152,000
2024 vote for president
- Donald Trump, Republican
- 61.2%
- Kamala Harris, Democrat
- 36.8%
- Other candidates
- 2.0%
Votes counted, by precinct. Source: MIT Election Data and Science Lab, precinct returns (public domain).
Represent all of Henry County
Henry County's districts (8)
U.S. House (2)
- U.S. House District 16
Held by Darin LaHood, Republican
Part of Henry County: 26,905 people in 2020
- U.S. House District 17
Held by Eric Sorensen, Democratic
Part of Henry County: 22,379 people in 2020
Illinois Senate (3)
- Illinois Senate District 36
Held by Mike Halpin, Democratic
Part of Henry County: 11,619 people in 2020
- Illinois Senate District 37
Held by Li Arellano, Republican
Part of Henry County: 11,390 people in 2020
- Illinois Senate District 47
Held by Neil Anderson, Republican
Part of Henry County: 26,275 people in 2020
Illinois House (3)
- Illinois House District 71
Held by Dan Swanson, Republican
Part of Henry County: 11,619 people in 2020
- Illinois House District 73
Held by Ryan Spain, Republican
Part of Henry County: 11,390 people in 2020
- Illinois House District 93
Held by Travis Weaver, Republican
Part of Henry County: 26,275 people in 2020
Towns (19)
Cities, villages and unincorporated communities, with the number of people in the county’s part of each at the 2020 Census.
- Kewanee12,509
- Geneseo6,539
- Colona5,045
- Galva2,470
- Cambridge2,086
- Orion1,754
- Atkinson965
- Annawan (part)884
- Woodhull754
- Alpha675
- Andover555
- Hooppole180
- Coal Valley (part)173
- Cleveland163
- Ophiem123
- Bishop Hill113
- Osco108
- Lynn Center85
- Nekoma23
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.