Scott AFB, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Scott AFB, Illinois had a total population of 3,957, the 379th largest community in Illinois, with a median household income of $103,390, which is 24% higher than the state average. The poverty rate is 5.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Near full employment with an unemployment rate of just 2.3%.
Scott AFB Quick Facts
How Scott AFB 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 | 4,195 | 3,957 | -5.7% |
| Median household income | $91,115 | $103,390 | +13.5% |
How Scott AFB 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 diverse community with significant representation from multiple racial and ethnic groups.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Scott AFB Rankings in Illinois
Explore Illinois Rankings
Other Cities in St. Clair County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Belleville | 41,370 | $63,535 | 14.6% | $141,300 |
| O'Fallon | 32,262 | $105,982 | 6.2% | $295,700 |
| East St. Louis | 17,999 | $35,700 | 32.8% | $52,600 |
| Fairview Heights | 16,745 | $80,930 | 8.8% | $177,700 |
| Swansea | 14,710 | $91,587 | 8.7% | $223,600 |
| Shiloh | 14,572 | $99,573 | 6.8% | $274,000 |
| Columbia | 11,127 | $107,606 | 5.4% | $293,000 |
| Mascoutah | 8,816 | $97,375 | 9.8% | $224,900 |
| Freeburg | 4,592 | $92,065 | 6.7% | $241,200 |
| Lebanon | 4,474 | $88,750 | 14.8% | $170,700 |
Cities Similar to Scott AFB
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Indian Head Park | 3,974 | $100,149 | $356,600 | 55.6% | 7.4% |
| Millstadt | 4,008 | $90,901 | $230,500 | 36.5% | 7.4% |
| Coal Valley | 4,229 | $106,850 | $215,700 | 34.8% | 3.9% |
| Poplar Grove | 3,923 | $120,278 | $270,700 | 31.1% | 3.7% |
| Rochester | 3,766 | $117,118 | $238,900 | 47.9% | 2.5% |
Population Overview
Scott AFB is a small community located in Illinois, within St. Clair County. The total population is 3,957. It ranks as the 379th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Scott AFB is 26.6 years. This is 32% lower than the state median of 39.0 years. With 35.9% of the population under 18, Scott AFB has a notably young demographic profile, suggesting a family-oriented community.
Economy, Income & Housing
The median household income in Scott AFB is $103,390. This is 24% higher than the state median of $83,390. It is also 28% higher than the national median of $80,734. The poverty rate stands at 5.7%. This is 52% lower than the state poverty rate of 11.8%. The unemployment rate is 2.3%. This is 61% lower than the state rate of 5.8%. 3.1% of occupied housing units are owner-occupied. This homeownership rate is 95% lower than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Scott AFB is White (non-Hispanic), making up 63.6% of the population. Hispanic or Latino residents account for 15.6%. The Asian population (1.1%) is well below the state average of 5.9%.
Education
33.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 11% 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 98.8%. Notably, 16.6% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Scott AFB, 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 Scott AFB, Illinois?
Scott AFB, Illinois has a population of 3,957 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Scott AFB, IL?
The median household income in Scott AFB is $103,390, which is 28% higher than the national median of $80,734.
What is the poverty rate in Scott AFB, IL?
The poverty rate in Scott AFB is 5.7%. This means approximately 224 residents live below the federal poverty line.
What is the racial makeup of Scott AFB, Illinois?
Scott AFB's population is 63.6% White, 11.2% Black, 15.6% Hispanic/Latino, and 1.1% Asian.
What is the median home value in Scott AFB, IL?
The Census Bureau does not publish a reliable median home value estimate for Scott AFB — there are too few owner-occupied homes in the ACS sample. The national median is $332,700.
How educated is Scott AFB, Illinois?
33.8% of adults (25+) in Scott AFB hold a bachelor's degree or higher, and 16.6% hold a graduate or professional degree.