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COUNTY · 1990 CENSUS

Lake County

Illinois · 516,418 residents · 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 $46,047. Population has fallen 20% since 2000, a loss of 127,938 residents. 32% of adults hold a bachelor's degree or higher, well above the national rate of 20%. Median home value is $136,100. Poverty is rare here, at 5.2% of residents. Households here earn about 43% more than the Illinois median.

At a glance
Wealthier
above the US median
US median: $30,130
Mid-age
median age 31.7
US median: 33.0
More educated
32% hold a bachelor's degree
US average: 20%
More affordable
home values down 6%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

516,418
−20%vs 2000
vs 644,356 in 2000
1990 – 2025
1,164 / sq mi
−20%vs 2000
vs 1,453 / sq mi in 2000
US average: 221
31.7
−6%vs 2000
vs 33.8 in 2000
US average: 33.0
Population, 19902024
497K556K615K675K734K1990201020202024Lake County
2024714K
1990201020202024
Section 02

Income & economy

$46,047
−9%inflation adjusted, since 2000
vs $66,973 in 2000
US average: $30,130
1990 – 2024
$21,765
−32%vs 2000
vs $32,102 in 2000
US average: $14,340
5.2%
−0.6 ptsvs 2000
vs 5.7% in 2000
US average: 13.2%
Section 03

Housing

$136,100
−6%inflation adjusted, since 2000
vs $191,600 in 2000
US average: $93,722
1990 – 2024
$558
−1%inflation adjusted, since 2000
vs $742 in 2000
US average: $450
74.2%
−3.6 ptsvs 2000
vs 77.8% in 2000
25.8% rent
3.0
+3%vs 2000
vs 2.9 in 2000
1990 – 2024
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%
Diversity Score52%(335,117)
1990
White, non-Hispanic87.4%(451,157)
Black6.7%(34,698)
Hispanic / Latino7.1%(36,735)
Asian2.4%(12,488)
Other3.5%(18,075)
Diversity Score40.6%(209,703)
41
−22%vs 2000
vs 52 in 2000
1990 – 2024
Section 05

Education

32.0%
−6.6 ptsvs 2000
vs 38.6% in 2000
US average: 20.3%
High school or higher
84.7%
−1.9 ptsvs 2000
vs 86.6% in 2000
US average: 75.2%
11.5%
−3.1 ptsvs 2000
vs 14.6% in 2000
US average: 7.1%
Section 06

Commute & transportation

25.6 min
+15%vs 2000
vs 22.2 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in Lake County, Illinois?

Lake County, Illinois has about 516,418 residents according to the 1990 Census.

What is the median household income in Lake County, Illinois?

The typical household in Lake County, Illinois earns about $46,047 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 $136,100, and the typical rent is about $558 a month.

How educated are people in Lake County, Illinois?

About 32.0% 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 5.2% of people in Lake County, Illinois live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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