Madison County vs St. Clair County
A side-by-side comparison of Madison County and St. Clair County: population, income, housing, and more.
Madison County and St. Clair County are counties in Illinois. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
Madison County has the higher population (264,631 vs 254,777 in St. Clair County). Madison County has the higher median household income ($74,800 vs $70,178 in St. Clair County). St. Clair County has the higher median home value ($168,800 vs $167,900 in Madison County).
Population, income & housing
| Madison County | St. Clair County | |
|---|---|---|
| Population | 264,631 | 254,777 |
| Median age | 40.2 yrs | 39.5 yrs |
| Median household income | $74,800 | $70,178 |
| Median home value | $167,900 | $168,800 |
| Median gross rent | $969 | $1,032 |
| Housing units | 118,942 | 115,348 |
| Homeownership rate | 73.6% | 67.8% |
| Bachelor's degree or higher | 30.8% | 30.7% |
| Unemployment rate | 4.7% | 5.7% |
Trends (ACS 5-year, 2019–2023)
| Madison County | St. Clair County | |
|---|---|---|
| Population | 264,776 → 264,631 (-0.1%) | 262,338 → 254,777 (-2.9%) |
| Median household income | $60,738 → $74,800 (+23.2%) | $55,179 → $70,178 (+27.2%) |
| Median home value | $135,600 → $167,900 (+23.8%) | $128,000 → $168,800 (+31.9%) |
| Median gross rent | $824 → $969 (+17.6%) | $861 → $1,032 (+19.9%) |
Madison County
264,776264,631
$60,738$74,800
$135,600$167,900
$824$969
St. Clair County
262,338254,777
$55,179$70,178
$128,000$168,800
$861$1,032
Age & race/ethnicity
Age distribution (share)
| Madison County | St. Clair County | |
|---|---|---|
| Under 5 | 5.3% | 5.8% |
| 5 to 17 | 16.2% | 17.4% |
| 18 to 24 | 8.8% | 8.1% |
| 25 to 34 | 12.9% | 12.8% |
| 35 to 44 | 12.7% | 13.2% |
| 45 to 54 | 12.2% | 12.1% |
| 55 to 64 | 13.9% | 13.7% |
| 65 to 74 | 10.6% | 10.3% |
| 75 and over | 7.4% | 6.5% |
Race & ethnicity (share)
| Madison County | St. Clair County | |
|---|---|---|
| White (non-Hispanic) | 82.4% | 59.5% |
| Black or African American | 8.5% | 27.8% |
| American Indian & Alaska Native | 0.0% | 0.2% |
| Asian | 1.0% | 1.5% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.2% | 0.5% |
| Two or more races | 3.7% | 5.5% |
| Hispanic or Latino | 4.2% | 4.9% |
Educational attainment (age 25+)
Share of adults 25+
| Madison County | St. Clair County | |
|---|---|---|
| No high school diploma | 6.3% | 7.3% |
| High school graduate | 28.3% | 27.0% |
| Some college or associate's | 34.6% | 35.0% |
| Bachelor's degree | 19.6% | 17.6% |
| Graduate or professional degree | 11.2% | 13.2% |
Commute to work
How workers get to work (share)
| Madison County | St. Clair County | |
|---|---|---|
| Drove alone | 80.3% | 76.9% |
| Carpooled | 6.4% | 7.7% |
| Public transit | 0.7% | 1.9% |
| Walked | 0.9% | 1.5% |
| Bicycle | 0.1% | 0.1% |
| Worked from home | 11.0% | 10.9% |
| Other means | 0.7% | 1.0% |
Housing
Units in structure (share)
| Madison County | St. Clair County | |
|---|---|---|
| 1-unit, detached | 78.9% | 71.4% |
| 1-unit, attached | 2.7% | 4.7% |
| 2 to 4 units | 8.3% | 8.0% |
| 5 to 19 units | 4.5% | 8.2% |
| 20 or more units | 3.2% | 3.2% |
| Mobile home & other | 2.4% | 4.6% |
Poverty & households
| Madison County | St. Clair County | |
|---|---|---|
| Poverty rate | 11.3% | 13.6% |
| Average household size | 2.37 | 2.47 |
| Mean commute (minutes) | 25 | 25 |
| Median year structure built | 1970 | 1975 |
Full profiles
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