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 2026 population of 19,788. Lake Forest is currently growing at a rate of 0.37% annually and its population has increased by 2.27% since the most recent census, which recorded a population of 19,349 in 2020.

The median household income in Lake Forest is $235,081 with a poverty rate of 3.51%. The median age in Lake Forest is 46.1 years: 44.6 years for males, and 48.3 years for females. For every 100 females there are 91.0 males.

19.8K
Total Population
1,150
Density (mi²)
73 0.37%
Growth

Lake Forest Population

Lake Forest Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202619,788730.37%
202519,715730.37%
202419,6421430.73%
202319,4991700.88%
202219,32900%
202119,329-20-0.1%
202019,349-19-0.1%
201919,457-77-0.39%
201819,534-72-0.37%
201719,6061991.03%
201619,407-20-0.1%
201519,427-51-0.26%
201419,478100.05%
201319,468680.35%
201219,400260.13%
201119,374-18-0.09%
201019,392170.09%
200020,0592,22312.46%
199017,8362,59117%
198015,245-397-2.54%
197015,6424,95546.36%
196010,6872,86836.68%
19507,81993413.57%
19406,8853315.05%
19306,5542,89779.22%
19203,6573089.2%
19103,34900%

Median Age

Overall: 46.1 years
Female: 48.3 years
Male: 44.6 years

Lake Forest Adults

There are 15,681 adults, (5,184 of whom are seniors) in Lake Forest.

Sex Ratio

Female: 10,164 (52.3%)
Male: 9,252 (47.7%)

Demographics

The racial composition of Lake Forest includes 82.25% White, 6.46% Asian, and smaller percentages for other race, Black or African American, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White15,96982.25%
Two or more races1,6618.55%
Asian1,2556.46%
Other race2951.52%
Black or African American1860.96%
Native American500.26%
Race
Population ↓
Percentage (of total)
Two or more races6153.17%
White3922.02%
Other race1230.63%
Native American450.23%
Asian70.04%
Race
Population ↓
Percentage (of total)
White15,57780.23%
Asian1,2486.43%
Two or more races1,0465.39%
Black or African American1860.96%
Other race1720.89%
Native American50.03%

Lake Forest Marital Status

Economics and Income Statistics

Lake Forest 's average per capita income is $109,931. Household income levels show a median of $235,081. The poverty rate stands at 3.51%.

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
Families$250,001$354,276
Married Families$250,001-
Households$235,081$303,251
Non Families$88,542$137,931

$109,931

Average Income

$235,081

Median Household Income

3.51%

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)