Long Grove, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Long Grove, Illinois had a total population of 8,305, the 259th largest village in Illinois, with a median household income of $250,000+, which is 200% higher than the state average. The poverty rate is 1.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 200% above the state average — one of the wealthiest communities in Illinois.
- An exceptionally low poverty rate of 1.2% — among the lowest in Illinois.
- 75.7% of adults hold a bachelor's degree or higher — top 10% in Illinois.
- Near full employment with an unemployment rate of just 2.1%.
Long Grove Quick Facts
How Long Grove 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 | 8,266 | 8,305 | +0.5% |
| Median household income | $235,368 | $250,000+ | +6.2% |
| Median home value | $746,700 | $804,600 | +7.8% |
How Long Grove 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+)
Long Grove 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 Long Grove
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Glencoe | 8,701 | $248,933 | $1,432,500 | 88.2% | 2.1% |
| Hawthorn Woods | 9,143 | $219,631 | $619,100 | 75.7% | 0.6% |
| Lincolnshire | 7,980 | $185,580 | $677,700 | 77.0% | 5.2% |
| Oak Brook | 8,056 | $175,870 | $903,200 | 66.4% | 6.6% |
| Inverness | 7,275 | $207,434 | $715,600 | 68.5% | 2.6% |
Population Overview
Long Grove is a small city located in Illinois, within Lake County. The total population is 8,305. It ranks as the 259th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Long Grove is 49.2 years. This is 26% higher than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Long Grove is $250,000+. This is 200% higher than the state median of $83,390. It is also 210% higher than the national median of $80,734. The poverty rate stands at 1.2%. This is 90% 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 2.1%. This is 63% lower than the state rate of 5.8%. The median home value is $804,600. Housing costs are 206% higher than the state median of $263,300. The home-value-to-income ratio is 3.2x. 96.3% of occupied housing units are owner-occupied. This homeownership rate is 44% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Long Grove is White (non-Hispanic), making up 75.6% of the population. Asian residents account for 12.3%. The Black or African American population (3.1%) is well below the state average of 13.3%. The Hispanic or Latino population (4.0%) is well below the state average of 18.8%. The Asian population is significantly higher than the state average (12.3% vs 5.9%).
Education
75.7% of residents aged 25 and older hold a bachelor's degree or higher. This places Long Grove in the top 10% of all cities in the state for educational attainment. This is 100% 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 98.9%. Notably, 33.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Long Grove, 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 Long Grove, Illinois?
Long Grove, Illinois has a population of 8,305 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Long Grove, IL?
The median household income in Long Grove is $250,000+, which is 210% higher than the national median of $80,734.
What is the poverty rate in Long Grove, IL?
The poverty rate in Long Grove is 1.2%. This means approximately 93 residents live below the federal poverty line.
What is the racial makeup of Long Grove, Illinois?
Long Grove's population is 75.6% White, 3.1% Black, 4.0% Hispanic/Latino, and 12.3% Asian.
What is the median home value in Long Grove, IL?
The median home value in Long Grove is $804,600. The home-value-to-income ratio is 3.2x.
How educated is Long Grove, Illinois?
75.7% of adults (25+) in Long Grove hold a bachelor's degree or higher, and 33.1% hold a graduate or professional degree.