COUNTY
Lake County
Illinois · 719,339 residents (2025 est.) · 443.605 sq mi
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The short version
Lake County is significantly wealthier than the US average, with a median household income of $110,416. Population has held roughly steady since 2000. 48% of adults hold a bachelor's degree or higher. Median home value has more than doubled since 2000, reaching $345,700. It ranks in the top 1% of US counties for household income. Households here earn about 32% more than the Illinois median.
At a glance
Wealthier
above the US median
US median: $82,259
Mid-age
median age 39.1
US median: 38.9
More educated
48% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01
Population & growth
PEP 2025 EST:719,339 residents (Census Bureau Vintage 2025, released March 2026)
Population, 1990 – 2024
2024714K
Age distribution, 2024
Under 55.3%(37,967)
5 to 96.5%(46,394)
10 to 146.9%(49,048)
15 to 197.7%(55,189)
20 to 247%(50,316)
25 to 3411.4%(81,214)
35 to 4412.9%(92,115)
45 to 5413.2%(94,091)
55 to 6413.3%(95,097)
65 to 749.5%(67,898)
75 to 844.5%(32,258)
85 and over1.8%(12,636)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$110,416
−9%inflation adjusted, since 2000
from $66,973 in 2000
US average: $82,259
1990 – 2024
Households earning $100K+
66.1%
+13.9 ptssince 2009
from 52.2% in 2009
US average: 53.3%
Workforce by industry, 2024
Retail trade15.5%
Information11%
Other services8.1%
Public administration6.4%
Wholesale trade4.8%
Finance & insurance4.6%
Professional, scientific, technical4.2%
Transportation & warehousing3.9%
Arts, entertainment, food1.5%
Education & health services0.4%
Agriculture, forestry, fishing0.3%
Construction0.3%
Manufacturing0%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$345,700
−1%inflation adjusted, since 2000
from $191,600 in 2000
US average: $376,019
1990 – 2024
3.1
−15%since 2009
from 3.7 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
26
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Lake County on RentDataNow
Section 04
Race & ethnicity
2000
White, non-Hispanic73.4%(472,968)
Black6.8%(43,580)
Hispanic / Latino14.4%(92,716)
Asian3.9%(24,866)
Other0%
2024
White, non-Hispanic56.2%(401,332)
Black6.3%(45,196)
Hispanic / Latino24.9%(177,631)
Asian8.6%(61,505)
Other4%(28,559)
76
+22%since 2009
from 63 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
43
−3%since 2020
from 44 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry
Hispanic origin
Mexican19.1%(136,544)
Puerto Rican1.8%(12,801)
Central American1.5%(11,059)
South American1.1%(7,523)
Honduran0.8%(5,520)
Colombian0.4%(3,016)
Cuban0.4%(2,658)
Salvadoran0.3%(2,430)
Guatemalan0.3%(2,280)
Spaniard0.2%(1,747)
Ecuadorian0.2%(1,732)
Dominican0.1%(1,057)
+ 10 more hispanic origin groups with data
Argentine0.1%(869)
Peruvian0.1%(791)
Venezuelan0.1%(533)
Nicaraguan0.1%(461)
Panamanian0%(264)
Chilean0%(256)
Bolivian0%(198)
Costa Rican0%(80)
Paraguayan0%(58)
Uruguayan0%(38)
Asian origin
Asian Indian3.7%(26,528)
Filipino1.6%(11,661)
Chinese1.2%(8,866)
Korean0.9%(6,204)
Pakistani0.2%(1,645)
Japanese0.2%(1,275)
Vietnamese0.2%(1,178)
Taiwanese0.1%(589)
Cambodian0.1%(560)
Mongolian0.1%(492)
Thai0%(215)
Hmong0%(173)
+ 9 more asian origin groups with data
Malaysian0%(163)
Sri Lankan0%(163)
Laotian0%(155)
Nepalese0%(111)
Burmese0%(99)
Uzbek0%(73)
Bangladeshi0%(48)
Indonesian0%(16)
Singaporean0%(13)
Ancestry
German15.8%(112,961)
Irish10%(71,697)
Polish7.4%(53,062)
English6.4%(45,782)
Italian6%(43,061)
American3.3%(23,897)
Russian2.1%(15,270)
Swedish1.9%(13,394)
Norwegian1.4%(10,350)
French1.4%(10,323)
Scottish1.2%(8,743)
Greek0.9%(6,434)
+ 50 more ancestry groups with data
Ukrainian0.8%(6,068)
Dutch0.7%(4,717)
Subsaharan African0.6%(4,595)
Hungarian0.6%(4,159)
Czech0.6%(3,973)
Lithuanian0.5%(3,748)
West Indian0.5%(3,432)
Romanian0.4%(2,991)
Danish0.4%(2,948)
Austrian0.4%(2,881)
Arab0.4%(2,798)
Scotch-Irish0.4%(2,681)
Finnish0.3%(2,351)
British0.3%(2,044)
Welsh0.3%(1,902)
Croatian0.2%(1,717)
French Canadian0.2%(1,687)
Slovak0.2%(1,525)
Swiss0.2%(1,319)
Serbian0.2%(1,277)
Canadian0.2%(1,268)
Jamaican0.2%(1,179)
Slovene0.2%(1,110)
Nigerian0.2%(1,091)
Belgian0.1%(1,061)
Iranian0.1%(1,034)
Armenian0.1%(944)
Bulgarian0.1%(919)
Portuguese0.1%(885)
Brazilian0.1%(840)
Latvian0.1%(634)
Egyptian0.1%(589)
Haitian0.1%(480)
Turkish0.1%(466)
Israeli0.1%(422)
Lebanese0.1%(367)
Australian0%(327)
Palestinian0%(303)
Ghanaian0%(264)
Moroccan0%(196)
Jordanian0%(195)
Kenyan0%(150)
Syrian0%(127)
Trinidadian & Tobagonian0%(118)
Macedonian0%(109)
Iraqi0%(99)
Guyanese0%(94)
Barbadian0%(41)
Ethiopian0%(25)
Cape Verdean0%(9)
Section 05
Education
High school or higher
90.6%
+4.0 ptssince 2000
from 86.6% in 2000
US average: 89.6%
Section 06
Commute & transportation
Section 07
Work & employment
Section 08
People & community
Marital status
Men 15+
Never married35.2%(102,538)
Married55.5%(161,684)
Widowed2.3%(6,569)
Divorced7%(20,342)
Women 15+
Never married29.3%(84,942)
Married53.7%(155,682)
Widowed6.9%(20,131)
Divorced10%(28,926)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper
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Pop 636,906
Places similar to Lake CountyHead to head
Compare Lake County to nearby counties
LAKE COUNTY VS
Cook County
Income$83,498−24%
Home value$324,500−6%
Population5,194,625+622%
SEE FULL COMPARISON →
LAKE COUNTY VS
DuPage County
Income$112,096+2%
Home value$391,400+13%
Population934,298+30%
SEE FULL COMPARISON →
LAKE COUNTY VS
Kenosha County
Income$81,239−26%
Home value$265,500−23%
Population168,448−77%
SEE FULL COMPARISON →
LAKE COUNTY VS
McHenry County
Income$104,802−5%
Home value$308,100−11%
Population317,751−56%
SEE FULL COMPARISON →
Frequently asked
How many people live in Lake County, Illinois?
Lake County, Illinois has about 714,223 residents according to the 2024 American Community Survey.
What is the median household income in Lake County, Illinois?
The typical household in Lake County, Illinois earns about $110,416 a year. Half of households make more than that, and half make less.
Is Lake County, Illinois expensive?
In Lake County, Illinois, the median home is worth about $345,700, and the typical rent is about $1,477 a month.
How educated are people in Lake County, Illinois?
About 47.7% of adults age 25 and over in Lake County, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Lake County, Illinois?
About 8.3% of people in Lake County, Illinois live below the federal poverty line.
Has Lake County, Illinois grown since 1990?
Yes, Lake County, Illinois has grown since 1990. The population has added about 197,805 residents, a change of about 38 percent over that period.
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160 census tracts (top 20 by population)
Census Tract 8609.06Census Tract 8615.04Census Tract 8614.02Census Tract 8644.02Census Tract 8642.07Census Tract 8606Census Tract 8610.11Census Tract 8626.03Census Tract 8611.06Census Tract 8640.01Census Tract 8645.11Census Tract 8616.03Census Tract 8641.10Census Tract 8604Census Tract 8660Census Tract 8619.02Census Tract 8618.03Census Tract 8630.03Census Tract 8662Census Tract 862028 ZIP codes
ZIP 60085ZIP 60073ZIP 60047ZIP 60089ZIP 60060ZIP 60031ZIP 60030ZIP 60046ZIP 60099ZIP 60035ZIP 60048ZIP 60015ZIP 60061ZIP 60087ZIP 60002ZIP 60045ZIP 60084ZIP 60064ZIP 60088ZIP 60020ZIP 60044ZIP 60083ZIP 60041ZIP 60069ZIP 60042ZIP 60096ZIP 60040ZIP 60075Up the hierarchy
All counties in IllinoisDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024