Caseyville, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Caseyville, Illinois had a total population of 4,130, the 372nd largest village in Illinois, with a median household income of $60,669, which is 27% lower than the state average. The poverty rate is 14.3%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 1.6x.
Caseyville Quick Facts
How Caseyville 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 | 4,170 | 4,130 | -1.0% |
| Median household income | $57,919 | $60,669 | +4.7% |
| Median home value | $94,900 | $96,800 | +2.0% |
How Caseyville 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+)
Caseyville 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 Caseyville
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Paxton | 4,131 | $62,386 | $120,400 | 19.7% | 8.6% |
| Hometown | 4,215 | $61,101 | $173,400 | 16.4% | 6.9% |
| Marseilles | 4,279 | $58,217 | $142,500 | 23.9% | 21.5% |
| Staunton | 4,298 | $57,904 | $143,500 | 23.2% | 14.5% |
| West Peoria | 4,238 | $66,098 | $93,900 | 22.9% | 8.4% |
Population Overview
Caseyville is a small community located in Illinois, within St. Clair County. The total population is 4,130. It ranks as the 372nd most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Caseyville is 42.1 years. This is 8% higher than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Caseyville is $60,669. This is 27% lower than the state median of $83,390. It is also 25% lower than the national median of $80,734. The poverty rate stands at 14.3%. This is 21% higher than the state poverty rate of 11.8%. The unemployment rate is 5.4%. This is 7% lower than the state rate of 5.8%. The median home value is $96,800. Housing costs are 63% lower than the state median of $263,300. With a home-value-to-income ratio of just 1.6x, Caseyville is one of the most affordable housing markets in the area. 70.0% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Caseyville is White (non-Hispanic), making up 62.5% of the population. Hispanic or Latino residents account for 21.5%.
Education
11.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 70% 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 90.9%.
Data Sources & Methodology
All demographic data for Caseyville, 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 Caseyville, Illinois?
Caseyville, Illinois has a population of 4,130 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Caseyville, IL?
The median household income in Caseyville is $60,669, which is 25% lower than the national median of $80,734.
What is the poverty rate in Caseyville, IL?
The poverty rate in Caseyville is 14.3%. This means approximately 568 residents live below the federal poverty line.
What is the racial makeup of Caseyville, Illinois?
Caseyville's population is 62.5% White, 10.6% Black, 21.5% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Caseyville, IL?
The median home value in Caseyville is $96,800. The home-value-to-income ratio is 1.6x.
How educated is Caseyville, Illinois?
11.5% of adults (25+) in Caseyville hold a bachelor's degree or higher, and 3.0% hold a graduate or professional degree.