Long Lake, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Long Lake, Illinois had a total population of 3,307, the 413th largest community in Illinois, with a median household income of $104,621, which is 25% higher than the state average. The poverty rate is 7.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Housing is very affordable with a home-value-to-income ratio of just 2.1x.
- Unemployment rate of 17.1% is notably above the national average.
Long Lake Quick Facts
How Long Lake 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 | 3,219 | 3,307 | +2.7% |
| Median household income | $100,824 | $104,621 | +3.8% |
| Median home value | $185,400 | $220,100 | +18.7% |
How Long Lake 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+)
Long Lake 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 Lake
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Pistakee Highlands | 3,374 | $102,986 | $216,800 | 21.1% | 7.5% |
| Forsyth | 3,502 | $112,000 | $281,000 | 59.3% | 11.3% |
| East Dundee | 3,146 | $89,583 | $300,000 | 39.8% | 11.8% |
| Le Roy | 3,236 | $81,875 | $167,600 | 34.5% | 2.8% |
| Knoxville | 3,211 | $82,863 | $145,300 | 24.8% | 7.2% |
Population Overview
Long Lake is a small community located in Illinois, within Lake County. The total population is 3,307. It ranks as the 413th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Long Lake is 33.9 years. This is 13% lower than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Long Lake is $104,621. This is 25% higher than the state median of $83,390. It is also 30% higher than the national median of $80,734. The poverty rate stands at 7.5%. This is 36% lower than the state poverty rate of 11.8%. The unemployment rate is 17.1%. This is 193% higher than the state rate of 5.8%. The median home value is $220,100. Housing costs are 16% lower than the state median of $263,300. With a home-value-to-income ratio of just 2.1x, Long Lake is one of the most affordable housing markets in the area. 82.5% of occupied housing units are owner-occupied. This homeownership rate is 23% higher than the state average of 67.1%.
Race & Ethnicity
The largest racial or ethnic group in Long Lake is White (non-Hispanic), making up 47.6% of the population. Hispanic or Latino residents account for 47.4%. The Black or African American population (1.7%) is well below the state average of 13.3%. The Hispanic or Latino population is significantly higher than the state average (47.4% vs 18.8%). The Asian population (0.4%) is well below the state average of 5.9%.
Education
17.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 54% lower 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 76.9%.
Data Sources & Methodology
All demographic data for Long Lake, 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 Lake, Illinois?
Long Lake, Illinois has a population of 3,307 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Long Lake, IL?
The median household income in Long Lake is $104,621, which is 30% higher than the national median of $80,734.
What is the poverty rate in Long Lake, IL?
The poverty rate in Long Lake is 7.5%. This means approximately 249 residents live below the federal poverty line.
What is the racial makeup of Long Lake, Illinois?
Long Lake's population is 47.6% White, 1.7% Black, 47.4% Hispanic/Latino, and 0.4% Asian.
What is the median home value in Long Lake, IL?
The median home value in Long Lake is $220,100. The home-value-to-income ratio is 2.1x.
How educated is Long Lake, Illinois?
17.5% of adults (25+) in Long Lake hold a bachelor's degree or higher, and 2.7% hold a graduate or professional degree.