Sangamon County vs St. Clair County
A side-by-side comparison of Sangamon County and St. Clair County: population, income, housing, and more.
Sangamon 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.
St. Clair County has the higher population (254,777 vs 195,217 in Sangamon County). Sangamon County has the higher median household income ($74,114 vs $70,178 in St. Clair County). Sangamon County has the higher median home value ($170,300 vs $168,800 in St. Clair County).
Population, income & housing
| Sangamon County | St. Clair County | |
|---|---|---|
| Population | 195,217 | 254,777 |
| Median age | 40.8 yrs | 39.5 yrs |
| Median household income | $74,114 | $70,178 |
| Median home value | $170,300 | $168,800 |
| Median gross rent | $954 | $1,032 |
| Housing units | 93,151 | 115,348 |
| Homeownership rate | 70.6% | 67.8% |
| Bachelor's degree or higher | 35.1% | 30.7% |
| Unemployment rate | 5.5% | 5.7% |
Trends (ACS 5-year, 2019–2023)
| Sangamon County | St. Clair County | |
|---|---|---|
| Population | 196,861 → 195,217 (-0.8%) | 262,338 → 254,777 (-2.9%) |
| Median household income | $61,912 → $74,114 (+19.7%) | $55,179 → $70,178 (+27.2%) |
| Median home value | $141,200 → $170,300 (+20.6%) | $128,000 → $168,800 (+31.9%) |
| Median gross rent | $820 → $954 (+16.3%) | $861 → $1,032 (+19.9%) |
Sangamon County
196,861195,217
$61,912$74,114
$141,200$170,300
$820$954
St. Clair County
262,338254,777
$55,179$70,178
$128,000$168,800
$861$1,032
Age & race/ethnicity
Age distribution (share)
| Sangamon County | St. Clair County | |
|---|---|---|
| Under 5 | 5.6% | 5.8% |
| 5 to 17 | 16.4% | 17.4% |
| 18 to 24 | 7.9% | 8.1% |
| 25 to 34 | 12.2% | 12.8% |
| 35 to 44 | 12.9% | 13.2% |
| 45 to 54 | 12.2% | 12.1% |
| 55 to 64 | 13.9% | 13.7% |
| 65 to 74 | 11.4% | 10.3% |
| 75 and over | 7.5% | 6.5% |
Race & ethnicity (share)
| Sangamon County | St. Clair County | |
|---|---|---|
| White (non-Hispanic) | 78.1% | 59.5% |
| Black or African American | 12.5% | 27.8% |
| American Indian & Alaska Native | 0.1% | 0.2% |
| Asian | 2.1% | 1.5% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.5% | 0.5% |
| Two or more races | 4.0% | 5.5% |
| Hispanic or Latino | 2.8% | 4.9% |
Educational attainment (age 25+)
Share of adults 25+
| Sangamon County | St. Clair County | |
|---|---|---|
| No high school diploma | 6.3% | 7.3% |
| High school graduate | 28.2% | 27.0% |
| Some college or associate's | 30.4% | 35.0% |
| Bachelor's degree | 20.9% | 17.6% |
| Graduate or professional degree | 14.2% | 13.2% |
Commute to work
How workers get to work (share)
| Sangamon County | St. Clair County | |
|---|---|---|
| Drove alone | 78.3% | 76.9% |
| Carpooled | 5.9% | 7.7% |
| Public transit | 1.1% | 1.9% |
| Walked | 1.3% | 1.5% |
| Bicycle | 0.4% | 0.1% |
| Worked from home | 12.0% | 10.9% |
| Other means | 0.9% | 1.0% |
Housing
Units in structure (share)
| Sangamon County | St. Clair County | |
|---|---|---|
| 1-unit, detached | 72.7% | 71.4% |
| 1-unit, attached | 5.3% | 4.7% |
| 2 to 4 units | 5.9% | 8.0% |
| 5 to 19 units | 7.5% | 8.2% |
| 20 or more units | 4.5% | 3.2% |
| Mobile home & other | 4.1% | 4.6% |
Poverty & households
| Sangamon County | St. Clair County | |
|---|---|---|
| Poverty rate | 12.9% | 13.6% |
| Average household size | 2.27 | 2.47 |
| Mean commute (minutes) | 20 | 25 |
| Median year structure built | 1973 | 1975 |
Full profiles
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