Kilbourne, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Kilbourne, Illinois had a total population of 268, the 1117th largest village in Illinois, with a median household income of $44,107, which is 47% lower than the state average. The poverty rate is 15.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 47% below the state average, indicating significant economic challenges.
- Only 6.5% of adults have a bachelor's degree, well below the national average of 35.7%.
- Housing is very affordable with a home-value-to-income ratio of just 1.6x.
- Unemployment rate of 16.3% is notably above the national average.
Kilbourne Quick Facts
How Kilbourne 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 | 272 | 268 | -1.5% |
| Median household income | $40,625 | $44,107 | +8.6% |
| Median home value | $69,200 | $72,500 | +4.8% |
How Kilbourne 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
A less diverse community where one racial or ethnic group represents a large majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Kilbourne Rankings in Illinois
Explore Illinois Rankings
Other Cities in Mason County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Havana | 2,989 | $41,184 | 24.0% | $95,300 |
| Mason City | 2,159 | $66,524 | 16.7% | $91,100 |
| Manito | 1,692 | $71,920 | 8.3% | $112,600 |
| Easton | 285 | $61,250 | 16.5% | $81,700 |
| Bath | 224 | $47,500 | 13.4% | $63,200 |
| Forest City | 223 | $87,813 | 28.2% | $86,300 |
| Goofy Ridge | 125 | $38,750 | 16.0% | $54,300 |
| Topeka | 47 | $77,500 | 0.0% | $31,300 |
Cities Similar to Kilbourne
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Nebo | 266 | $44,625 | $46,200 | 2.5% | 17.8% |
| Dundas | 272 | N/A | $77,700 | 0.0% | 7.0% |
| Verona | 272 | $45,313 | $118,800 | 14.6% | 18.0% |
| Taylor Ridge | 276 | N/A | $181,100 | 26.3% | 6.5% |
| Buckner | 276 | $46,364 | $69,300 | 12.7% | 31.2% |
A note before these figures: with a population of 268, Kilbourne'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
Kilbourne is a small community located in Illinois, within Mason County. The total population is 268. It ranks as the 1117th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Kilbourne is 33.8 years. This is 13% lower than the state median of 39.0 years. With 36.2% of the population under 18, Kilbourne has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Kilbourne is $44,107. This is 47% lower than the state median of $83,390. It is also 45% lower than the national median of $80,734. The poverty rate stands at 15.7%. This is 33% higher than the state poverty rate of 11.8%. The unemployment rate is 16.3%. This is 178% higher than the state rate of 5.8%. The median home value is $72,500. Housing costs are 72% lower than the state median of $263,300. With a home-value-to-income ratio of just 1.6x, Kilbourne is one of the most affordable housing markets in the area. 72.2% of occupied housing units are owner-occupied. This homeownership rate is 8% higher than the state average of 67.1%.
Race & Ethnicity
Kilbourne has a predominantly White (non-Hispanic) population, comprising 98.5% of all residents. The White (non-Hispanic) population is significantly higher than the state average (98.5% vs 58.1%).
Education
6.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 83% 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 90.8%.
Data Sources & Methodology
All demographic data for Kilbourne, 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.
Free data download: Get all Illinois city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Kilbourne, Illinois?
Kilbourne, Illinois has a population of 268 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Kilbourne, IL?
The median household income in Kilbourne is $44,107, which is 45% lower than the national median of $80,734.
What is the poverty rate in Kilbourne, IL?
The poverty rate in Kilbourne is 15.7%. This means approximately 42 residents live below the federal poverty line.
What is the racial makeup of Kilbourne, Illinois?
Kilbourne's population is 98.5% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Kilbourne, IL?
The median home value in Kilbourne is $72,500. The home-value-to-income ratio is 1.6x.
How educated is Kilbourne, Illinois?
6.5% of adults (25+) in Kilbourne hold a bachelor's degree or higher, and 2.6% hold a graduate or professional degree.