Henderson, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Henderson, Illinois had a total population of 284, the 1099th largest village in Illinois, with a median household income of $57,875, which is 31% lower than the state average. The poverty rate is 23.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 31% below the state average, indicating significant economic challenges.
- Housing is very affordable with a home-value-to-income ratio of just 1.9x.
- Unemployment rate of 8.7% is notably above the national average.
Henderson Quick Facts
How Henderson Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 253 | 284 | +12.3% |
| Median household income | $51,875 | $57,875 | +11.6% |
| Median home value | $98,800 | $111,100 | +12.4% |
How Henderson Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
Moderate diversity with one or two groups making up the majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Henderson Rankings in Illinois
Explore Illinois Rankings
Other Cities in Knox County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Galesburg | 29,481 | $48,297 | 19.1% | $96,400 |
| Abingdon | 3,443 | $61,653 | 9.2% | $99,600 |
| Knoxville | 3,211 | $82,863 | 7.2% | $145,300 |
| Oak Run | 800 | $100,417 | 3.3% | $298,300 |
| Oneida | 719 | $66,791 | 3.6% | $114,100 |
| East Galesburg | 713 | $79,333 | 17.5% | $123,700 |
| Wataga | 710 | $62,917 | 9.3% | $97,600 |
| Williamsfield | 531 | $82,417 | 4.0% | $109,800 |
| Yates City | 500 | $63,750 | 6.3% | $97,100 |
| Altona | 498 | $69,375 | 7.6% | $102,000 |
Cities Similar to Henderson
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Taylor Ridge | 276 | N/A | $181,100 | 26.3% | 6.5% |
| Easton | 285 | $61,250 | $81,700 | 5.9% | 16.5% |
| Dundas | 272 | N/A | $77,700 | 0.0% | 7.0% |
| Brocton | 275 | $59,231 | $81,300 | 11.7% | 8.0% |
| Bay View Gardens | 281 | $52,679 | $122,800 | 8.8% | 18.9% |
A note before these figures: with a population of 284, Henderson's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Henderson is a small community located in Illinois, within Knox County. The total population is 284. It ranks as the 1099th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Henderson is 27.5 years. This is 29% lower than the state median of 39.0 years. With 35.9% of the population under 18, Henderson has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Henderson is $57,875. This is 31% lower than the state median of $83,390. It is also 28% lower than the national median of $80,734. The poverty rate stands at 23.7%. This is 100% higher than the state poverty rate of 11.8%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 8.7%. This is 49% higher than the state rate of 5.8%. The median home value is $111,100. Housing costs are 58% lower than the state median of $263,300. With a home-value-to-income ratio of just 1.9x, Henderson is one of the most affordable housing markets in the area. 75.2% of occupied housing units are owner-occupied. This homeownership rate is 12% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Henderson is White (non-Hispanic), making up 74.3% of the population. Hispanic or Latino residents account for 10.6%.
Education
16.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 56% lower than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 80.1%.
Data Sources & Methodology
All demographic data for Henderson, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Henderson, Illinois?
Henderson, Illinois has a population of 284 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Henderson, IL?
The median household income in Henderson is $57,875, which is 28% lower than the national median of $80,734.
What is the poverty rate in Henderson, IL?
The poverty rate in Henderson is 23.7%. This means approximately 67 residents live below the federal poverty line.
What is the racial makeup of Henderson, Illinois?
Henderson's population is 74.3% White, 7.4% Black, 10.6% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Henderson, IL?
The median home value in Henderson is $111,100. The home-value-to-income ratio is 1.9x.
How educated is Henderson, Illinois?
16.6% of adults (25+) in Henderson hold a bachelor's degree or higher, and 2.6% hold a graduate or professional degree.