Henderson County, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 92nd-largest in Illinois
The population of Henderson County, Illinois is 6,284 as of the 2023 American Community Survey, making it the 92nd-largest county in Illinois. The median household income is $65,651, the median home value is $101,600, and the median age is 49.8.
The population of Henderson County has declined 17.6% since 2010 (7,344 → 6,048), a -1.38% annualized rate.
6,284
Population
-1.38%
Annual growth
17
People / sq mi
$65,651
Median Income
$101,600
Median Home Value
Henderson County covers 379 sq mi of land at 16.6 people per square mile.
About Henderson County, IL
Henderson County is a county in Illinois with a population of 6,284. It ranks #92 among counties in Illinois by population. The median age is 49.8, older than the national median. The population is 50.4% male and 49.6% female.
The median household income in Henderson County is $65,651, below the US median of $74,580. 10.2% of residents live below the federal poverty level. Home values sit at a median of $101,600, with monthly rent averaging $834. The homeownership rate of 85.5% is higher than the national rate of 64.8%.
Educational attainment in Henderson County reflects 19.2% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 5.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 27.6 minutes each way.
Henderson County Population History (2010-2024)
The county of Henderson County had a population of 7,344 in 2010 and 6,048 in 2024, a -17.6% growth over 14 years. The peak was 7,344 in 2010. Average annual growth rate: -1.37%.
6,048
Population (2024)
7,344
Population (2010)
7,344
Peak (2010)
-1.37%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 7,344 |
| 2011 | 7,221 |
| 2012 | 7,048 |
| 2013 | 6,969 |
| 2014 | 7,018 |
| 2015 | 7,001 |
| 2016 | 6,889 |
| 2017 | 6,824 |
| 2018 | 6,726 |
| 2019 | 6,709 |
| 2020 | 6,335 |
| 2021 | 6,309 |
| 2022 | 6,168 |
| 2023 | 6,105 |
| 2024 | 6,048 |
Race & Ethnicity
| White | 95.2% |
| Black or African American | 0.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.3% |
| Two or More Races | 0.0% |
Age & Sex
49.8
Median Age
49.6%
Female
50.4%
Male
26.7%
Age 65+
Age Distribution
Children (under 15): 15.5% · Seniors (65+): 26.7%
Income & Poverty
| Median household income | $65,651$-16,051 vs state |
| Mean household income | $75,442 |
| Per-capita income | $32,763 |
| Poverty rate | 10.2%+2.0% vs state |
| Unemployment rate | 5.0% |
| Employment-to-population | 52.6% |
Top Industries by Employment
The largest employment sector in Henderson County is professional & business services, accounting for 20.4% of workers.
How residents commute
0.5%
Drive alone
0.9%
Carpool
86.9%
Public transit
5.5%
Work from home
27.6 min
Avg commute
Housing
$101,600$-148,900 vs state
Median home value
$834
Median rent
85.5%
Homeownership rate
3,374
Total housing units
78.9%
Occupied
21.1%
Vacant
14.5%
Renter-occupied
Social & access
97.2%
With health insurance
87.2%
With broadband internet
51.8%
Foreign-born
9.2%
Veterans (18+)
19.2%
With a disability
98.8%
Speak language other than English at home
Education
92.1%
High School+
19.2%
Bachelor's+
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County rankings
Frequently Asked Questions
Henderson County, Illinois has a population of 6,284 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 92nd-largest county in Illinois. Population density is 17 people per square mile.
The population of Henderson County has declined 17.6% since 2010 (7,344 → 6,048), a -1.38% annualized rate.
The median household income in Henderson County, Illinois is $65,651, with mean (average) household income of $75,442 and per-capita income of $32,763. 10.2% of residents live below the federal poverty level.
In Henderson County, the largest racial and ethnic groups are White (95.2%), Hispanic or Latino (2.3%), Black or African American (0.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Henderson County, Illinois is 49.8 years. Residents are 49.6% female and 50.4% male.
The median home value in Henderson County is $101,600 and median monthly rent is $834. 85.5% of occupied housing units are owner-occupied. The county has 3,374 total housing units, 21.1% of which are vacant.
The largest employment sector in Henderson County, Illinois is professional, scientific, and management services, employing 20.4% of workers. The unemployment rate is 5.0%.
Chicago is among the largest cities associated with Henderson County, Illinois, with a population of 2,707,648.
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Statewide data for Illinois
Population, race, income, age, and trends across Illinois
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.