Lake Forest Flag

Lake Forest

County:
Lake County
County Seat:
No
Area (mi²):
17.201
State:
Illinois

Lake Forest is a city located in Lake County, Illinois. Lake Forest has a 2025 population of 19,715 . Lake Forest is currently growing at a rate of 0.37% annually and its population has increased by 1.89% since the most recent census, which recorded a population of 19,349 in 2020.

The average household income in Lake Forest is $302,171 with a poverty rate of 3.95%. The median age in Lake Forest is 46.1 years: 44.6 years for males, and 48.5 years for females. For every 100 females there are 90.7 males.

19.7K
Total Population
1,146
Density (mi²)
73 0.37%
Growth

Lake Forest 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)