Lake Zurich, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Lake Zurich, Illinois had a total population of 19,832, the 124th largest village in Illinois, with a median household income of $135,968, which is 63% higher than the state average. The poverty rate is 3.4%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 63% above the state average — one of the wealthiest communities in Illinois.
- An exceptionally low poverty rate of 3.4% — among the lowest in Illinois.
- 60.7% of adults hold a bachelor's degree or higher — top 10% in Illinois.
Lake Zurich Quick Facts
How Lake Zurich 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 | 19,727 | 19,832 | +0.5% |
| Median household income | $139,959 | $135,968 | -2.9% |
| Median home value | $418,300 | $435,300 | +4.1% |
How Lake Zurich 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 less diverse community where one racial or ethnic group represents a large majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Lake Zurich Rankings in Illinois
Explore Illinois Rankings
Other Cities in Lake County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Waukegan | 89,076 | $71,919 | 15.3% | $190,900 |
| Mundelein | 31,915 | $108,340 | 8.2% | $309,700 |
| North Chicago | 30,643 | $60,172 | 24.5% | $159,600 |
| Gurnee | 30,510 | $119,628 | 5.2% | $344,300 |
| Highland Park | 30,398 | $168,094 | 4.2% | $607,300 |
| Round Lake Beach | 27,079 | $86,059 | 14.8% | $199,200 |
| Vernon Hills | 26,876 | $121,943 | 6.1% | $412,300 |
| Zion | 24,600 | $63,104 | 16.0% | $183,800 |
| Grayslake | 20,929 | $113,972 | 6.3% | $309,500 |
| Libertyville | 20,525 | $165,667 | 4.2% | $512,000 |
Cities Similar to Lake Zurich
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Mokena | 20,021 | $123,889 | $401,400 | 42.5% | 4.5% |
| Geneva | 21,258 | $144,341 | $441,400 | 63.8% | 3.8% |
| Frankfort | 20,651 | $154,375 | $481,200 | 59.3% | 3.2% |
| Brookfield | 19,331 | $110,295 | $332,400 | 42.3% | 5.4% |
| Shorewood | 18,343 | $122,105 | $337,800 | 41.1% | 5.2% |
Population Overview
Lake Zurich is a small city located in Illinois, within Lake County. The total population is 19,832. It ranks as the 124th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Lake Zurich is 40.3 years. This is 3% higher than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Lake Zurich is $135,968. This is 63% higher than the state median of $83,390. It is also 68% higher than the national median of $80,734. The poverty rate stands at 3.4%. This is 71% lower than the state poverty rate of 11.8%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 3.2%. This is 45% lower than the state rate of 5.8%. The median home value is $435,300. Housing costs are 65% higher than the state median of $263,300. The home-value-to-income ratio is 3.2x. 77.8% of occupied housing units are owner-occupied. This homeownership rate is 16% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Lake Zurich is White (non-Hispanic), making up 80.6% of the population. Asian residents account for 8.4%. The Black or African American population (0.7%) is well below the state average of 13.3%. The Hispanic or Latino population (6.7%) is well below the state average of 18.8%.
Education
60.7% of residents aged 25 and older hold a bachelor's degree or higher. This places Lake Zurich in the top 10% of all cities in the state for educational attainment. This is 60% higher than 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 97.0%. Notably, 23.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Lake Zurich, 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 Lake Zurich, Illinois?
Lake Zurich, Illinois has a population of 19,832 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Lake Zurich, IL?
The median household income in Lake Zurich is $135,968, which is 68% higher than the national median of $80,734.
What is the poverty rate in Lake Zurich, IL?
The poverty rate in Lake Zurich is 3.4%. This means approximately 666 residents live below the federal poverty line.
What is the racial makeup of Lake Zurich, Illinois?
Lake Zurich's population is 80.6% White, 0.7% Black, 6.7% Hispanic/Latino, and 8.4% Asian.
What is the median home value in Lake Zurich, IL?
The median home value in Lake Zurich is $435,300. The home-value-to-income ratio is 3.2x.
How educated is Lake Zurich, Illinois?
60.7% of adults (25+) in Lake Zurich hold a bachelor's degree or higher, and 23.5% hold a graduate or professional degree.