Round Lake is a village located in Lake County, Illinois. Round Lake has a 2025 population of 18,644 . Round Lake is currently declining at a rate of -0.05% annually and its population has decreased by -0.25% since the most recent census, which recorded a population of 18,691 in 2020.
The average household income in Round Lake is $125,864 with a poverty rate of 8.99%. The median age in Round Lake is 36.7 years: 36.6 years for males, and 36.8 years for females. For every 100 females there are 95.8 males.
Data after 2023 is projected based on recent change
The racial composition of Round Lake includes 51.47% White, 14.6% Asian, 9.99% other race, 3.06% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (51.47%)
Two or more races (19.14%)
Asian (14.6%)
Other race (9.99%)
Black or African American (3.06%)
Native American (1.52%)
Native Hawaiian or Pacific Islander (0.22%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 9,567 | 51.47% |
| Two or more races | 3,558 | 19.14% |
| Asian | 2,714 | 14.6% |
| Other race | 1,857 | 9.99% |
| Black or African American | 568 | 3.06% |
| Native American | 283 | 1.52% |
| Native Hawaiian or Pacific Islander | 41 | 0.22% |
Married
Widowed
Divorced
Separated
Never Married
Round Lake's average per capita income is $60,188. Household income levels show a median of $108,965. The poverty rate stands at 8.99%.
Name | Median | Mean |
|---|---|---|
| Married Families | $133,108 | - |
| Families | $123,349 | $142,241 |
| Households | $108,965 | $125,864 |
| Non Families | $78,654 | $75,295 |
Average Income
Median Household Income
Poverty Rate