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 2026 population of 18,635. Round Lake is currently declining at a rate of -0.05% annually and its population has decreased by -0.3% since the most recent census, which recorded a population of 18,691 in 2020.

The median household income in Round Lake is $111,977 with a poverty rate of 8.96%. The median age in Round Lake is 36.1 years: 35.3 years for males, and 37.1 years for females. For every 100 females there are 94.0 males.

18.6K
Total Population
3,352
Density (mi²)
-9 -0.05%
Growth

Round Lake Population

Round Lake Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202618,635-9-0.05%
202518,644-10-0.05%
202418,654790.43%
202318,57540.02%
202218,571-63-0.34%
202118,634-91-0.49%
202018,6915883.25%
201918,103-126-0.69%
201818,229-166-0.9%
201718,395-96-0.52%
201618,491-37-0.2%
201518,528-60-0.32%
201418,588660.36%
201318,522730.4%
201218,449520.28%
201118,397190.1%
201018,378890.49%
20005,8422,29264.56%
19903,55090634.27%
19802,64400%

Median Age

Overall: 36.1 years
Female: 37.1 years
Male: 35.3 years

Round Lake Adults

There are 13,376 adults, (1,662 of whom are seniors) in Round Lake.

Sex Ratio

Female: 9,602 (51.5%)
Male: 9,026 (48.5%)

Demographics

The racial composition of Round Lake includes 49.72% White, 12.25% Asian, 9.81% other race, 4.1% 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)
White9,26149.72%
Two or more races4,24522.79%
Asian2,28212.25%
Other race1,8279.81%
Black or African American7634.1%
Native American2251.21%
Native Hawaiian or Pacific Islander250.13%
Race
Population ↓
Percentage (of total)
Two or more races3,82820.55%
Other race1,5728.44%
White9785.25%
Native American1881.01%
Black or African American760.41%
Asian350.19%
Race
Population ↓
Percentage (of total)
White8,28344.47%
Asian2,24712.06%
Black or African American6873.69%
Two or more races4172.24%
Other race2551.37%
Native American370.2%
Native Hawaiian or Pacific Islander250.13%

Round Lake Marital Status

Economics and Income Statistics

Round Lake 's average per capita income is $62,180. Household income levels show a median of $111,977. The poverty rate stands at 8.96%.

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$129,390-
Families$120,692$140,340
Households$111,977$123,506
Non Families$61,823$75,333

$62,180

Average Income

$111,977

Median Household Income

8.96%

Poverty Rate

Nearby Cities

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)