Round Lake Beach, Illinois Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Round Lake Beach, IL Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around average
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C
Income Below average
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F
Education Well below average
Source: Map AI Methodology
Population
| Metric | Round Lake Beach | Illinois Avg | U.S. Average |
|---|---|---|---|
| Population | 21,331 | 12,692,444 | 337,468,954 |
| Population density (per sq mi) | 4099.1 | 219.1 | 86.4 |
| Population growth (%/yr) | -0.46% | -0.16% | 0.59% |
| Median age | 32.2 | 37.4 | 37.3 |
| Households | 6,663 | 5,035,584 | 130,235,071 |
Population in Round Lake Beach declined by 6.9% from 2009 to 2024, reaching 21,331 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Round Lake Beach is Gen Z, aged 13–28, at 24.6% of residents. That is 3.3 points above Illinois as a whole.
- Gen Z 13–28 5,237 24.6% +3.3 pts
- Millennials 29–44 4,823 22.6% +0.7 pts
- Gen X 45–60 4,162 19.5% -0.9 pts
- Boomers 61–79 2,293 10.7% -6.2 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Illinois, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 48.2% of the people living in Round Lake Beach and men 51.8%.
- Women 48.2% Illinois 50.6%
- Men 51.8% Illinois 49.4%
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Economy
Round Lake Beach has a the economy index of C, which means it is somewhat prosperous.
| Metric | Round Lake Beach | Illinois Avg | U.S. Average |
|---|---|---|---|
| Median household income | $86,947 | $84,042 | $80,455 |
| Income growth (%/yr) | 4.90% | 4.46% | 4.80% |
| Unemployment rate | 8.1% | 5.8% | 5.2% |
The median household income in Round Lake Beach is about 3% higher than in Illinois.
Housing
| Metric | Round Lake Beach | Illinois Avg | U.S. Average |
|---|---|---|---|
| Median home price | $178,762 | $149,936 | $248,835 |
| Median rent | $1,542 | $1,274 | $1,407 |
| Homeownership rate | 80.1% | 67.1% | 65.2% |
The median home price in Round Lake Beach is about 9.7 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,542 per month for that long.
Commute Time & Mobility
Commuters in Round Lake Beach spend about 56 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 233 hours, about 9.7 full days, spent commuting.
| Metric | Round Lake Beach | Illinois Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 28.0 | 23.6 | 22.4 |
| Round-trip commute (min) | 56.0 | 47.3 | 44.8 |
| Yearly time spent (hours) | 233 | 197 | 187 |
| Estimated yearly cost | $7,230 | $6,104 | $5,790 |
| Work from home | 7.0% | 15.9% | 15.0% |
| Highway traffic (vehicles/day) | — | 7,977 | 8,813 |
| Local road traffic (vehicles/day) | 3,866 | 1,547 | 1,355 |
The average commute time in Round Lake Beach is 28 minutes, longer than the 24 minutes in Illinois.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Round Lake Beach has a education index of F, which means it scores poorly in education.
| Metric | Round Lake Beach | Illinois Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 14.4% | 34.1% | 31.6% |
| Average household size | 3.19 | 2.46 | 2.53 |
Health
Round Lake Beach has a health index of B, which means it is quite healthy.
| Metric | Round Lake Beach | Illinois Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.3 | 77.9 | 78.3 |
| Self-rated poor health | 16.7% | 15.6% | 16.3% |
| Smokers | 19.3% | 19.2% | 19.0% |
Frequently Asked Questions
Common questions about Round Lake Beach, Illinois.
How many people live in Round Lake Beach, Illinois?
About 21,331 people live in Round Lake Beach, Illinois, in 6,663 households of 3.2 people on average. The median age is 32.2, so residents are younger than the U.S. median of 37.3 by about 5 years.
Is Round Lake Beach, Illinois urban or rural?
Averaged over its land area, Round Lake Beach, Illinois has 4,099 people per square mile, a density typical of a city. That is about 47 times the U.S. average of 86.
How affordable is housing in Round Lake Beach, Illinois?
The median home costs 2.1 times the median household income ($178,762 against $86,947), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,542 a month takes about 21% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How strong is the job market in Round Lake Beach, Illinois?
Unemployment in Round Lake Beach, Illinois is 8.1%, well above the U.S. rate of 5.2%, so job seekers may face more competition than elsewhere.
How common is a college degree in Round Lake Beach, Illinois?
14.4% of adults in Round Lake Beach, Illinois hold a bachelor's degree or higher (about 1 in 7), well below the U.S. share of 31.6%.
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