Lake County, Illinois Population 2024

707,621

Lake County, Illinois's estimated 2024 population is 707,621 with a growth rate of -0.16% 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 704,179 and has seen a growth of 0.49% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
2029701,926-1,139-0.16%
2028703,065-1,139-0.16%
2027704,204-1,139-0.16%
2026705,343-1,139-0.16%
2025706,482-1,139-0.16%
2024707,621-1,139-0.16%
2023708,760-1,139-0.16%
2022709,899-2,671-0.37%
2021712,570-711-0.1%
2020713,28116,1472.32%
2019697,134-3,321-0.47%
2018700,455-2,370-0.34%
2017702,825-1,576-0.22%
2016704,401-286-0.04%
2015704,6873280.05%
2014704,3591000.01%
2013704,2592,1420.31%
2012702,1174650.07%
2011701,652-2,527-0.36%
2010704,17900%
1990516,41876,04617.27%
1980440,37257,73415.09%
1970382,63888,98230.3%
1960293,656114,55963.96%
1950179,09758,00347.9%
1940121,09416,70716%
1930104,38730,10240.52%
192074,28519,22734.92%
191055,05820,55459.57%
190034,50410,26942.37%
189024,2352,93913.8%
188021,2962821.34%
187021,0142,75715.1%
186018,2574,03128.34%
185014,22611,592440.09%
18402,634-699,292-99.62%
2024 Growth Rate
-0.16% (-1,139)
County Website
Lake County
County Seat
Waukegan
2020 Population
713,281
Area
444 mi²
Density
1594 people/mi²
Growth Since 2020
-0.79% (-5,660)
Founded
March 1, 1839

Population by Race

Race
Population
Percentage (of total)
White478,74267.13%
Two or more races67,1129.41%
Asian60,3628.46%
Other race53,1327.45%
Black or African American48,3146.77%
Native American5,1320.72%
Native Hawaiian or Pacific Islander3650.05%

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Lake County, Illinois Population by Race

Lake County, Illinois Population Pyramid 2024

Lake County, Illinois Median Age

38.7

Total

37.4

Male

40.1

Female

Lake County, Illinois Adults

There are 545,200 adults, (106,790 of whom are seniors) in Lake County, Illinois.

Lake County, Illinois Age Dependency

62.7

Age Dependency Ratio

24.4

Old Age Dependency Ratio

38.3

Child Dependency Ratio

Lake County, Illinois Sex Ratio

Female353,87849.62%
Male359,28150.38%

Lake County, Illinois Population by Age

Lake County, Illinois Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All254,7942.7273.826.2
Married147,0343.385.614.4
Non Family71,1891.258.441.6
Female25,5323.4352.647.4
Male11,0393.1764.535.5

3.25

Average Family Size

2.72

Average Household Size

73.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Lake County, Illinois Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade20,5974.38%
Associates Degree30,2596.44%
Bachelors Degree128,44427.32%
Graduate Degree92,31019.63%
High School Graduate93,28519.84%
Less Than 9th Grade22,6724.82%
Some College82,63617.57%

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

Race
Total
High School
Bachelors
White303,205294,670165,358
Hispanic86,20557,13912,796
Asian41,28239,08330,506
2+ Races33,40125,6888,702
Other Race31,04219,0613,764
Black29,17826,4096,832
Native American3,0172,170608
Islander236225164

The highest rate of high school graduation is among white people with a rate of 97.19%.

The highest rate of bachelors degrees is among asian people with a rate of 73.9%.

Lake County, Illinois Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$80,213$100,721$60,768
Graduate Degree$107,627$137,104$81,089
High School Graduate$40,785$46,654$32,951
Less Than 9th Grade$30,352$35,829$23,620
Overall$59,010$71,339$47,609
Some College$47,235$57,536$39,095

$59,010

Average Earnings

$71,339

Average Male

$47,609

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

70.08% of Lake County, Illinois residents speak only English, while 29.92% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 17.92% of the population.

Lake County, Illinois Language

Lake County, Illinois Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
Hispanic158,56720,21512.75%
White410,70720,0994.89%
Black45,0999,50521.08%
Multiple65,8207,68611.68%
Other52,5766,83012.99%
Asian59,3452,7414.62%
Native4,67953411.41%
Islander346113.18%

7.85%

Overall Poverty Rate

6.8%

Male Poverty Rate

8.89%

Female Poverty Rate

Poverty in Lake County, Illinois

The race most likely to be in poverty in Lake County, Illinois is Black, with 21.08% below the poverty level.

The race least likely to be in poverty in Lake County, Illinois is Islander, with 3.18% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.62%. Among those working part-time, it was 9.24%, and for those that did not work, the poverty rate was 14.06%.

Lake County, Illinois Poverty

rate

Rate
Poverty
Less Than 9th Grade15.13%
High School10.55%
Some College7.25%
Bachelors or Greater3.13%

Lake County, Illinois Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed16.59%
Male Unemployed14.88%
Female Employed4.41%
Male Employed3.22%

Lake County, Illinois Poverty Rate by Employment Status and Sex

Lake County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$126,685$171,390
Households$104,553$147,075
Married Families$145,318$192,507
Non Families$54,332$79,192

mean

median

Income by Household Type

Lake County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

54.1%

Overall Marriage Rate

55.3%

Male Marriage Rate

52.9%

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 45-54.

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

29,346

Number of Veterans

26,056

Male Veterans

3,290

Female Veterans

War
Veterans
Vietnam8,839
Second Gulf War8,306
First Gulf War6,299
Korea1,545
World War II693

Lake County, Illinois Veterans by War

count

Age Group
Veterans
75+7,199
35 to 546,397
65 to 745,855
55 to 645,098
18 to 344,797

Lake County, Illinois Veterans by Age

count

Name
Veterans
% of Total
White22,3095.98%
Black3,59910.67%
Hispanic3,2743.09%
2+ Races1,2623.03%
Asian1,2012.64%
Other Race7932.13%
Native American1635%
Islander197.48%

Lake County, Illinois Veterans by Race

Lake County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.46%

Veteran Poverty Rate

26.78%

Veteran Disability Rate

Lake County, Illinois Veterans by Education

LaborForceParticipation

68.3%

Labor Force Participation

63.1%

Employment Rate

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

59.22%

Born in Lake County, Illinois

81.09%

Native Born

18.91%

Foreign Born

8.96%

Non Citizen

9.95%

Naturalized

Place of Birth

81.09% of Lake County, Illinois residents were born in the United States, with 59.22% having been born in Illinois. 8.96% 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