Green Oaks, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Green Oaks, Illinois had a total population of 4,096, the 373rd largest village in Illinois, with a median household income of $147,614, which is 77% higher than the state average. The poverty rate is 6.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 77% above the state average — one of the wealthiest communities in Illinois.
- 60.9% of adults hold a bachelor's degree or higher — top 10% in Illinois.
Green Oaks Quick Facts
How Green Oaks 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 | 4,085 | 4,096 | +0.3% |
| Median household income | $133,472 | $147,614 | +10.6% |
| Median home value | $653,500 | $673,100 | +3.0% |
How Green Oaks 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
Moderate diversity with one or two groups making up the majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Green Oaks 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 Green Oaks
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Sherman | 4,386 | $148,906 | $297,800 | 49.5% | 2.2% |
| Metamora | 4,159 | $129,479 | $201,800 | 54.8% | 3.6% |
| Wadsworth | 3,686 | $142,738 | $378,900 | 47.4% | 8.5% |
| Poplar Grove | 3,923 | $120,278 | $270,700 | 31.1% | 3.7% |
| Smithton | 3,680 | $135,455 | $256,300 | 40.6% | 3.4% |
Population Overview
Green Oaks is a small community located in Illinois, within Lake County. The total population is 4,096. It ranks as the 373rd most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Green Oaks is 46.2 years. This is 18% higher than the state median of 39.0 years. 12.7% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Green Oaks is $147,614. This is 77% higher than the state median of $83,390. It is also 83% higher than the national median of $80,734. The poverty rate stands at 6.1%. This is 48% lower than the state poverty rate of 11.8%. The unemployment rate is 6.3%. This is 8% higher than the state rate of 5.8%. The median home value is $673,100. Housing costs are 156% higher than the state median of $263,300. The home-value-to-income ratio is 4.6x. 71.7% of occupied housing units are owner-occupied. This homeownership rate is 7% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Green Oaks is White (non-Hispanic), making up 74.1% of the population. Hispanic or Latino residents account for 10.7%. The Black or African American population (1.4%) is well below the state average of 13.3%. The Asian population is significantly higher than the state average (9.4% vs 5.9%).
Education
60.9% of residents aged 25 and older hold a bachelor's degree or higher. This places Green Oaks in the top 10% of all cities in the state for educational attainment. This is 61% 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 91.3%. Notably, 26.8% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Green Oaks, 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 Green Oaks, Illinois?
Green Oaks, Illinois has a population of 4,096 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Green Oaks, IL?
The median household income in Green Oaks is $147,614, which is 83% higher than the national median of $80,734.
What is the poverty rate in Green Oaks, IL?
The poverty rate in Green Oaks is 6.1%. This means approximately 251 residents live below the federal poverty line.
What is the racial makeup of Green Oaks, Illinois?
Green Oaks's population is 74.1% White, 1.4% Black, 10.7% Hispanic/Latino, and 9.4% Asian.
What is the median home value in Green Oaks, IL?
The median home value in Green Oaks is $673,100. The home-value-to-income ratio is 4.6x.
How educated is Green Oaks, Illinois?
60.9% of adults (25+) in Green Oaks hold a bachelor's degree or higher, and 26.8% hold a graduate or professional degree.