Lake County, Illinois Population 2023

717,606

Lake County, Illinois's estimated 2023 population is 717,606 with a growth rate of 0.15% in the past year according to the most recent United States census data. Lake County, Illinois is the 3rd largest county in Illinois. The 2010 population was 703,462 and has seen a growth of 2.01% since that time.

Note: data after 2021 is projected based on recent change

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2023 Growth Rate
0.15% (1,088)
County Website
Lake County
Founded
March 1, 1839
County Seat
Waukegan
2010 Population
703,462
Growth Since 2010
2.01% (14,144)

Lake County, Illinois Population 2023

Population by Race

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White

Asian

Other race

Two or more races

Black or African American

Native American

Native Hawaiian or Pacific Islander

Lake County, Illinois Population by Race

Lake County, Illinois Population Pyramid 2023

Lake County, Illinois Median Age

38.5

Total

37.2

Male

39.9

Female

Lake County, Illinois Adults

There are 542,057 adults, (102,890 of whom are seniors) in Lake County, Illinois.

Lake County, Illinois Age Dependency

62.7

Age Dependency Ratio

23.4

Old Age Dependency Ratio

39.3

Child Dependency Ratio

Lake County, Illinois Sex Ratio

Female355,57349.77%
Male358,91150.23%

Lake County, Illinois Population by Age

Lake County, Illinois Renter vs Owner Occupied by Household Type

3.28

Average Family Size

2.75

Average Household Size

73.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Lake County, Illinois Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Lake County, Illinois Educational Attainment by Sex (over 25)

Lake County, Illinois Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 83.46%.

The highest rate of bachelors degrees is among asian people with a rate of 62.91%.

Lake County, Illinois Educational Attainment by Race

All

Male

Female

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$54,229

Average Earnings

$66,086

Average Male

$43,207

Average Female

Lake County, Illinois Earnings by Educational Attainment

Lake County, Illinois Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Lake County, Illinois Language

70.71% of Lake County, Illinois residents speak only English, while 29.29% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 17.45% of the population.

Lake County, Illinois Language

Lake County, Illinois Poverty by Race

rate

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7.56%

Overall Poverty Rate

6.42%

Male Poverty Rate

8.69%

Female Poverty Rate

Poverty in Lake County, Illinois

The race most likely to be in poverty in Lake County, Illinois is Black, with 24.77% below the poverty level.

The race least likely to be in poverty in Lake County, Illinois is White, with 5.43% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.4%. Among those working part-time, it was 9.02%, and for those that did not work, the poverty rate was 13.78%.

Lake County, Illinois Poverty

rate

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Lake County, Illinois Poverty Rate by Education

rate

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Lake County, Illinois Poverty Rate by Employment Status and Sex

Lake County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Lake County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

54.1%

Overall Marriage Rate

55.5%

Male Marriage Rate

52.8%

Female Marriage Rate

Lake County, Illinois Married by Age and Sex

male

female

Lake County, Illinois 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 County, Illinois Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Lake County, Illinois Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

30,085

Number of Veterans

26,951

Male Veterans

3,134

Female Veterans

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Lake County, Illinois Veterans by War

count

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Lake County, Illinois Veterans by Age

count

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Lake County, Illinois Veterans by Race

Lake County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.3%

Veteran Poverty Rate

26.58%

Veteran Disability Rate

Lake County, Illinois Veterans by Education

LaborForceParticipation

68.4%

Labor Force Participation

63%

Employment Rate

5.5%

Unemployment Rate

Lake County, Illinois Employment by Age

LaborForceParticipation

Lake County, Illinois Employment by Race

LaborForceParticipation

Lake County, Illinois Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

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

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

59.52%

Born in Lake County, Illinois

81.24%

Native Born

18.63%

Foreign Born

8.82%

Non Citizen

9.81%

Naturalized

Place of Birth

81.24% of Lake County, Illinois residents were born in the United States, with 59.52% having been born in Illinois. 8.82% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Lake County, Illinois Place of Birth

Sources