Lake Forest, Illinois Population 2020

19,940

Lake Forest is a city located in Lake County, Illinois. With a 2020 population of 19,940, it is the 123rd largest city in Illinois and the 1859th largest city in the United States. Lake Forest is currently growing at a rate of 1.00% annually and its population has increased by 2.92% since the most recent census, which recorded a population of 19,375 in 2010. Lake Forest reached it's highest population of 20,059 in 2000. Spanning over 17 miles, Lake Forest has a population density of 1,159 people per square mile.

The average household income in Lake Forest is $265,477 with a poverty rate of 2.58%. The median rental costs in recent years comes to $1,750 per month, and the median house value is $851,900. The median age in Lake Forest is 47.6 years, 45.6 years for males, and 49.9 years for females. For every 100 females there are 96.8 males.

Lake Forest Il Demographics

According to the most recent ACS, the racial composition of Lake Forest Il was:

  • White: 87.43%
  • Asian: 8.13%
  • Black or African American: 1.98%
  • Two or more races: 1.71%
  • Other race: 0.54%
  • Native American: 0.21%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Lake Forest, Illinois is 19,940, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 19,544. The last official US Census in 2010 recorded the population at 19,375.

Population by Race

Race Population Percentage
White16,80387.43%
Asian1,5628.13%
Black or African American3811.98%
Two or More Races3281.71%
Some Other Race1040.54%
American Indian and Alaska Native410.21%

Lake Forest Il Population Pyramid 2020

Lake Forest Il Median Age

47.6


Total

45.6


Male

49.9


Female

Lake Forest Il Adults

There are 14,841 adults, (4,340 of whom are seniors) in Lake Forest Il.

Lake Forest Il Age Dependency

83

Age Dependency Ratio

41.3

Old Age Dependency Ratio

41.7

Child Dependency Ratio

Lake Forest Il Sex Ratio

Female

9,764

50.80%

Male

9,455

49.20%

Lake Forest Il Households and Families

Lake Forest Il Renter vs Owner Occupied by Household Type

Lake Forest Il Household Types

Type Owner Renter
Married90.3%9.7%
All85%15%
Female84.2%15.8%
Non Family72.9%27.1%
Male59.2%40.8%

85.0%

Rate of Home Ownership

Type Count Average Size Owned
All6,8782.6585
Married4,7253.1590.3
Non Family1,7121.1372.9
Female2842.9684.2
Male1573.5359.2

3.14

Average Family Size

2.65

Average Household Size

1.4%

Unmarried (Opposite Sex)

0.2%

Unmarried (Same Sex)

Lake Forest Il Education

Education Attained Count Percentage
Less Than 9th Grade670.52%
9th to 12th Grade870.68%
High School Graduate8516.60%
Some College1,2679.83%
Associates Degree4053.14%
Bachelors Degree4,92038.18%
Graduate Degree5,29041.05%

Lake Forest Il Educational Attainment by Race

Name Total High School Bachelors
White11,22611,1408,806
Asian1,0941,0941,043
Hispanic342274156
Black171171151
Multiple Races777766
Other Race4444
Native American777

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among native american people with a rate of 100.00%.

Name Average Male Female
Overall$92,762$149,722$50,400
Less Than High School$17,011$$14,712
High School Grad$32,287$40,739$31,450
Some College$52,500$72,083$32,313
Bachelors Degree$83,590$128,966$50,000
Graduate Degree$153,281$210,387$72,260

$92,762

Average Earnings

$149,722

Average Male

$50,400

Average Female

Lake Forest Il Language

Lake Forest Il Language by Age

Lake Forest Il Language

85.63% of Lake Forest Il residents speak only English, while 14.37% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 6.16% of the population.

Lake Forest Il Poverty

Lake Forest Il Poverty by Race

Name Total In Poverty Poverty Rate
White15,5874422.84%
Multiple268155.60%
Asian1,452110.76%
Hispanic62410.16%
Black29810.34%

2.58%

Overall Poverty Rate

3.05%

Male Poverty Rate

2.13%

Female Poverty Rate

Poverty in Lake Forest Il

The race most likely to be in poverty in Lake Forest Il is Multiple, with 5.60% below the poverty level.

The race least likely to be in poverty in Lake Forest Il is Hispanic, with 0.16% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.77%. Among those working part-time, it was 3.50%, and for those that did not work, the poverty rate was 4.75%.

Name Poverty
High School4.06%
Some College3.81%
Bachelors or Greater2.24%
Less Than High School1.30%
Name Poverty
Male Unemployed7.59%
Male Employed2.15%
Female Employed0.78%
Female Unemployed0.00%

Lake Forest Il Income

Lake Forest Il Income by Household Type

Name Median Mean
Households$167,404$265,477
Families$218,221$316,160
Married Families$236,719-
Non Families$55,494$111,445

Lake Forest Il Marital Status

Lake Forest Il Marital Status

Marriage Rates

61.0%

Overall Marriage Rate

63.1%

Male Marriage Rate

59.0%

Female Marriage Rate

Lake Forest Il Married by Age and Sex

Lake Forest Il Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Lake Forest Il Marital Status by Race

Lake Forest Il Veterans

867

Number of Veterans

802

Male Veterans

65

Female Veterans

War Veterans
Vietnam335
Korea133
First Gulf War117
World War II80
Second Gulf War61
Name Veterans % of Total
White8376.36%
Hispanic244.88%
Black207.41%
Asian100.85%

$Lake Forest Il Veterans by Education

1.05%

Veteran Poverty Rate

21.74%

Veteran Disability Rate

Lake Forest Il Employment Status

54.6%

Labor Force Participation

51.9%

Employment Rate

4.9%

Unemployment Rate

Lake Forest Il Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

52.01%

Born in Illinois

85.83%

Native Born

14.17%

Foreign Born

3.74%

Non Citizen

Place of Birth

85.83% of Lake Forest Il residents were born in the United States, with 52.01% having been born in Illinois. 3.74% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
202019,9401981.00%
201919,7421981.01%
201819,544-64-0.33%
201719,6081981.02%
201619,410-20-0.10%
201519,430-52-0.27%
201419,482160.08%
201319,466650.34%
201219,401320.17%
201119,369-20-0.10%
201019,389-670-0.34%
200020,0592,2231.18%
199017,8362,5911.58%
198015,245-397-0.26%
197015,6424,9553.88%
196010,6872,8683.17%
19507,8199341.28%
19406,8853310.49%
19306,5542,8976.01%
19203,6573080.88%
19103,3490.00%