Adair, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Adair, Illinois had a total population of 215, the 1186th largest community in Illinois. The poverty rate is 20.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- 45.7% of adults hold a bachelor's degree or higher — top 10% in Illinois.
- Unemployment rate of 12.8% is notably above the national average.
Adair Quick Facts
How Adair 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 | 148 | 215 | +45.3% |
| Median home value | $86,300 | $90,000 | +4.3% |
How Adair 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+)
Adair Rankings in Illinois
Explore Illinois Rankings
Other Cities in McDonough County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Macomb | 14,894 | $44,411 | 25.1% | $103,300 |
| Bushnell | 2,677 | $67,518 | 9.8% | $71,900 |
| Colchester | 1,128 | $63,981 | 7.8% | $91,700 |
| Blandinsville | 666 | $52,375 | 7.9% | $68,800 |
| Industry | 569 | $51,250 | 18.8% | $85,300 |
| Plymouth | 456 | $41,071 | 24.6% | $56,900 |
| Good Hope | 438 | $73,636 | 4.8% | $97,000 |
| Prairie City | 378 | $60,694 | 11.9% | $91,500 |
| Bardolph | 204 | $28,750 | 25.5% | $49,300 |
| Tennessee | 160 | $77,500 | 6.4% | $72,200 |
Cities Similar to Adair
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| New Holland | 216 | $77,500 | $87,900 | 20.0% | 8.3% |
| Brussels | 214 | $55,875 | $131,700 | 13.5% | 44.4% |
| Milton | 217 | $50,769 | $71,300 | 5.6% | 15.7% |
| Galt | 213 | $112,569 | N/A | 37.0% | 4.2% |
| New Minden | 218 | $66,875 | $95,000 | 11.3% | 8.5% |
A note before these figures: with a population of 215, Adair'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
Adair is a small community located in Illinois, within McDonough County. The total population is 215. It ranks as the 1186th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Adair is 19.8 years. This is 49% lower than the state median of 39.0 years.
Economy, Income & Housing
The poverty rate stands at 20.5%. This is 73% 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 12.8%. This is 119% higher than the state rate of 5.8%. The median home value is $90,000. Housing costs are 66% lower than the state median of $263,300. 40.0% of occupied housing units are owner-occupied. This homeownership rate is 40% lower than the state average of 67.1%.
Race & Ethnicity
Adair has a predominantly White (non-Hispanic) population, comprising 85.1% of all residents. Black or African American residents account for 7.9%.
Education
45.7% of residents aged 25 and older hold a bachelor's degree or higher. This places Adair in the top 10% of all cities in the state for educational attainment. This is 21% higher than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.
Data Sources & Methodology
All demographic data for Adair, 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 Adair, Illinois?
Adair, Illinois has a population of 215 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Adair, IL?
The Census Bureau does not publish a reliable median household income estimate for Adair — the community is too small for the ACS sample. The national median is $80,734.
What is the poverty rate in Adair, IL?
The poverty rate in Adair is 20.5%. This means approximately 44 residents live below the federal poverty line.
What is the racial makeup of Adair, Illinois?
Adair's population is 85.1% White, 7.9% Black, 0.0% Hispanic/Latino, and 7.0% Asian.
What is the median home value in Adair, IL?
The median home value in Adair is $90,000.
How educated is Adair, Illinois?
45.7% of adults (25+) in Adair hold a bachelor's degree or higher, and 14.9% hold a graduate or professional degree.