Round Lake Flag

Round Lake

County:
Lake County
County Seat:
No
Area (mi²):
5.56
State:
Illinois

Round Lake is a village located in Lake County, Illinois. Round Lake has a 2025 population of 18,255. Round Lake is currently declining at a rate of -0.47% annually and its population has decreased by -2.34% since the most recent census, which recorded a population of 18,692 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.

18.3K
Total Population
3,284
Density (mi²)
-87 -0.47%
Growth

Round Lake Population

Round Lake Population

Data after 2023 is projected based on recent change

Demographics

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.

Population by Race

Race
Population
Percentage (of total)
White9,56751.47%
Two or more races3,55819.14%
Asian2,71414.6%
Other race1,8579.99%
Black or African American5683.06%
Native American2831.52%
Native Hawaiian or Pacific Islander410.22%

Round Lake Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

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%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$133,108-
Families$123,349$142,241
Households$108,965$125,864
Non Families$78,654$75,295

$60,188

Average Income

$108,965

Median Household Income

8.99%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)