St. Clair County vs Winnebago County
A side-by-side comparison of St. Clair County and Winnebago County: population, income, housing, and more.
St. Clair County and Winnebago County are counties in Illinois. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
Winnebago County has the higher population (283,289 vs 254,777 in St. Clair County). St. Clair County has the higher median household income ($70,178 vs $64,363 in Winnebago County). St. Clair County has the higher median home value ($168,800 vs $155,100 in Winnebago County).
Population, income & housing
| St. Clair County | Winnebago County | |
|---|---|---|
| Population | 254,777 | 283,289 |
| Median age | 39.5 yrs | 39.7 yrs |
| Median household income | $70,178 | $64,363 |
| Median home value | $168,800 | $155,100 |
| Median gross rent | $1,032 | $986 |
| Housing units | 115,348 | 124,959 |
| Homeownership rate | 67.8% | 65.2% |
| Bachelor's degree or higher | 30.7% | 24.6% |
| Unemployment rate | 5.7% | 7.2% |
Trends (ACS 5-year, 2019–2023)
| St. Clair County | Winnebago County | |
|---|---|---|
| Population | 262,338 → 254,777 (-2.9%) | 284,819 → 283,289 (-0.5%) |
| Median household income | $55,179 → $70,178 (+27.2%) | $54,489 → $64,363 (+18.1%) |
| Median home value | $128,000 → $168,800 (+31.9%) | $120,400 → $155,100 (+28.8%) |
| Median gross rent | $861 → $1,032 (+19.9%) | $799 → $986 (+23.4%) |
St. Clair County
262,338254,777
$55,179$70,178
$128,000$168,800
$861$1,032
Winnebago County
284,819283,289
$54,489$64,363
$120,400$155,100
$799$986
Age & race/ethnicity
Age distribution (share)
| St. Clair County | Winnebago County | |
|---|---|---|
| Under 5 | 5.8% | 6.1% |
| 5 to 17 | 17.4% | 17.4% |
| 18 to 24 | 8.1% | 8.3% |
| 25 to 34 | 12.8% | 12.5% |
| 35 to 44 | 13.2% | 11.9% |
| 45 to 54 | 12.1% | 12.1% |
| 55 to 64 | 13.7% | 13.3% |
| 65 to 74 | 10.3% | 10.7% |
| 75 and over | 6.5% | 7.5% |
Race & ethnicity (share)
| St. Clair County | Winnebago County | |
|---|---|---|
| White (non-Hispanic) | 59.5% | 64.8% |
| Black or African American | 27.8% | 12.9% |
| American Indian & Alaska Native | 0.2% | 0.0% |
| Asian | 1.5% | 2.8% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.5% | 0.3% |
| Two or more races | 5.5% | 4.1% |
| Hispanic or Latino | 4.9% | 15.0% |
Educational attainment (age 25+)
Share of adults 25+
| St. Clair County | Winnebago County | |
|---|---|---|
| No high school diploma | 7.3% | 11.4% |
| High school graduate | 27.0% | 30.8% |
| Some college or associate's | 35.0% | 33.3% |
| Bachelor's degree | 17.6% | 15.6% |
| Graduate or professional degree | 13.2% | 9.0% |
Commute to work
How workers get to work (share)
| St. Clair County | Winnebago County | |
|---|---|---|
| Drove alone | 76.9% | 78.9% |
| Carpooled | 7.7% | 9.7% |
| Public transit | 1.9% | 0.6% |
| Walked | 1.5% | 1.1% |
| Bicycle | 0.1% | 0.2% |
| Worked from home | 10.9% | 8.3% |
| Other means | 1.0% | 1.2% |
Housing
Units in structure (share)
| St. Clair County | Winnebago County | |
|---|---|---|
| 1-unit, detached | 71.4% | 69.8% |
| 1-unit, attached | 4.7% | 4.2% |
| 2 to 4 units | 8.0% | 13.1% |
| 5 to 19 units | 8.2% | 6.6% |
| 20 or more units | 3.2% | 5.0% |
| Mobile home & other | 4.6% | 1.3% |
Poverty & households
| St. Clair County | Winnebago County | |
|---|---|---|
| Poverty rate | 13.6% | 16.0% |
| Average household size | 2.47 | 2.42 |
| Mean commute (minutes) | 25 | 23 |
| Median year structure built | 1975 | 1971 |
Full profiles
2Related rankings
21- Largest by population — counties in Illinois
- Most densely populated — counties in Illinois
- Highest median household income — counties in Illinois
- Highest median home value — counties in Illinois
- Most affordable home values — counties in Illinois
- Highest median gross rent — counties in Illinois
- Cheapest median gross rent — counties in Illinois
- Oldest by median age — counties in Illinois
- Youngest by median age — counties in Illinois
- Most college-educated — counties in Illinois
- Highest poverty rate — counties in Illinois
- Lowest poverty rate — counties in Illinois
- Highest homeownership rate — counties in Illinois
- Lowest homeownership rate — counties in Illinois
- Longest commutes — counties in Illinois
- Shortest commutes — counties in Illinois
- Largest households — counties in Illinois
- Newest housing — counties in Illinois
- Oldest housing — counties in Illinois
- Fastest-growing (2019–2023) — counties in Illinois
- Fastest-shrinking (2019–2023) — counties in Illinois