St. Clair County, Illinois
St. Clair County is home to 253,694 people. 13.6% of residents live below the poverty line, above the Illinois rate (11.8%). The median household income is $73,854.
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| Measure | Value | Illinois | Year | Source |
|---|---|---|---|---|
| Population | 253,694 | 12,694,798 | 2024 | Decennial Census and American Community Survey 5-year estimates |
| Median household income | $73,854 | $83,390 | 2024 | Decennial Census and American Community Survey 5-year estimates |
| Below poverty line | 13.6% | 11.8% | 2024 | Decennial Census and American Community Survey 5-year estimates |
| Children in poverty | 18.9% | 15.1% | 2024 | Decennial Census and American Community Survey 5-year estimates |
| No health insurance | 5.1% | 6.9% | 2024 | Decennial Census and American Community Survey 5-year estimates |
| Bachelor's degree or higher | 31.8% | 37.8% | 2024 | Decennial Census and American Community Survey 5-year estimates |
| Median home value | $180,300 | $263,300 | 2024 | Decennial Census and American Community Survey 5-year estimates |
| Median gross rent | $1,090 | $1,274 | 2024 | Decennial Census and American Community Survey 5-year estimates |
| Renters paying 30%+ of income | 47.7% | 47.9% | 2024 | Decennial Census and American Community Survey 5-year estimates |
| Foreign-born | 3.3% | 14.7% | 2024 | Decennial Census and American Community Survey 5-year estimates |
| Median age | 39.9 years | 39.0 years | 2024 | Decennial Census and American Community Survey 5-year estimates |
Neighboring counties
- Clinton County
- Madison County
- Monroe County
- Randolph County
- Washington County
- St. Louis County, Missouri
- St. Louis County, Missouri
Figures are the latest published estimates, from the sources named; survey estimates carry margins of error.