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 18,654 . Round Lake is currently growing at a rate of 0.43% annually but its population has decreased by -0.2% since the most recent census, which recorded a population of 18,691 in 2020.

The median household income in Round Lake is $108,965 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.

18.7K
Total Population
3,355
Density (mi²)
79 0.43%
Growth

Round Lake Population

Demographics

Economics and Income Statistics

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)