South Elgin, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, South Elgin, Illinois had a total population of 24,217, the 93rd largest village in Illinois, with a median household income of $127,203, which is 53% higher than the state average. The poverty rate is 6.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 53% above the state average — one of the wealthiest communities in Illinois.
South Elgin Quick Facts
How South Elgin 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 | 23,984 | 24,217 | +1.0% |
| Median household income | $123,744 | $127,203 | +2.8% |
| Median home value | $296,100 | $339,100 | +14.5% |
How South Elgin 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+)
South Elgin Rankings in Illinois
Explore Illinois Rankings
Other Cities in Kane County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Carpentersville | 37,346 | $86,917 | 10.3% | $234,100 |
| Algonquin | 30,067 | $134,525 | 4.1% | $351,000 |
| Huntley | 28,005 | $88,536 | 8.6% | $334,300 |
| Montgomery | 21,515 | $103,734 | 6.7% | $299,500 |
| Geneva | 21,258 | $144,341 | 3.8% | $441,400 |
| North Aurora | 18,696 | $114,305 | 6.3% | $342,100 |
| Pingree Grove | 10,914 | $114,294 | 1.2% | $320,800 |
| Campton Hills | 10,877 | $209,134 | 2.9% | $547,500 |
| Sugar Grove | 9,240 | $121,207 | 4.7% | $401,900 |
| Gilberts | 8,606 | $146,333 | 5.5% | $347,300 |
Cities Similar to South Elgin
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Homer Glen | 24,529 | $136,678 | $418,800 | 40.2% | 4.3% |
| Morton Grove | 24,619 | $111,116 | $389,100 | 55.2% | 7.3% |
| Yorkville | 23,617 | $108,513 | $335,300 | 37.9% | 3.3% |
| Lisle | 23,407 | $107,479 | $406,800 | 61.9% | 5.9% |
| Vernon Hills | 26,876 | $121,943 | $412,300 | 67.8% | 6.1% |
Population Overview
South Elgin is a small city located in Illinois, within Kane County. The total population is 24,217. It ranks as the 93rd most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in South Elgin is 39.0 years. This is about the same as the state median of 39.0 years.
Economy, Income & Housing
The median household income in South Elgin is $127,203. This is 53% higher than the state median of $83,390. It is also 58% higher than the national median of $80,734. The poverty rate stands at 6.5%. This is 45% lower than the state poverty rate of 11.8%. The unemployment rate is 3.1%. This is 47% lower than the state rate of 5.8%. The median home value is $339,100. Housing costs are 29% higher than the state median of $263,300. With a home-value-to-income ratio of just 2.7x, South Elgin is one of the most affordable housing markets in the area. 79.1% of occupied housing units are owner-occupied. This homeownership rate is 18% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in South Elgin is White (non-Hispanic), making up 57.4% of the population. Hispanic or Latino residents account for 20.3%. The Black or African American population (4.8%) is well below the state average of 13.3%. The Asian population is significantly higher than the state average (10.9% vs 5.9%).
Education
37.8% of residents aged 25 and older hold a bachelor's degree or higher. This is about the same as 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 91.7%.
Data Sources & Methodology
All demographic data for South Elgin, 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.
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Frequently Asked Questions
What is the population of South Elgin, Illinois?
South Elgin, Illinois has a population of 24,217 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in South Elgin, IL?
The median household income in South Elgin is $127,203, which is 58% higher than the national median of $80,734.
What is the poverty rate in South Elgin, IL?
The poverty rate in South Elgin is 6.5%. This means approximately 1,545 residents live below the federal poverty line.
What is the racial makeup of South Elgin, Illinois?
South Elgin's population is 57.4% White, 4.8% Black, 20.3% Hispanic/Latino, and 10.9% Asian.
What is the median home value in South Elgin, IL?
The median home value in South Elgin is $339,100. The home-value-to-income ratio is 2.7x.
How educated is South Elgin, Illinois?
37.8% of adults (25+) in South Elgin hold a bachelor's degree or higher, and 14.0% hold a graduate or professional degree.