United States › Illinois › Grayslake CITY
Grayslake Illinois · 21,140 residents (2025 est.) · 10.9 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS
The short version
With 20,929 people, Grayslake is a city in Illinois. This is an unusually credentialed place: 58% of adults have a four-year degree. Few US cities rank higher on income. Households here earn about 37% more than in Illinois as a whole. 78% of homes are owner-occupied. Households take in $113,972 a year at the median, 39% more than the country as a whole.
At a glance
Wealthier
above the US median
US median: $82,259
Younger
median age 37.2
US median: 38.9
More educated
58% hold a bachelor's degree
US average: 36%
More affordable
home values down 12%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 18,506 in 2000
21,140 in 2025 (Census Bureau estimate)
1,918 / sq mi
−1%since 2009
from 1,937 / sq mi in 2009
US average: 281
from 32.2 in 2000
US average: 38.9
Population, 1990 – 2024
6K 10K 14K 18K 23K 1990 2000 2010 2020 2024 Grayslake Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $113,972
−14%inflation adjusted, since 2000
from $73,143 in 2000
US average: $82,259
from $28,898 in 2000
US average: $44,673
Households earning $100K+
from 59.9% in 2009
US average: 53.3%
from 3.0% in 2000
US average: 12.5%
from 0.382 in 2010
US average: 0.476
Workforce by industry, 2024
Transportation & warehousing 5.3%
Public administration 5.1%
Professional, scientific, technical 3.4%
Arts, entertainment, food 1.9%
Education & health services 0.8%
Agriculture, forestry, fishing 0.1%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$309,500
−12%inflation adjusted, since 2000
from $192,900 in 2000
US average: $376,019
$1,485
−1%inflation adjusted, since 2000
from $820 in 2000
US average: $1,442
from 78.5% in 2000
21.8% rent
from 4.0% in 2009
US average: 10.0%
2.54 people
−10%since 2009
from 2.81 people in 2009
US average: 2.54
from 35.5% in 2009
US average: 22.9%
from 43.5% in 2009
US average: 47.4%
from 3.0 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 88%(16,293)
2024
White, non-Hispanic 71.1%(14,878)
Hispanic / Latino 10.2%(2,140)
from 33 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry Hispanic origin
+ 4 more hispanic origin groups with data Ancestry
+ 31 more ancestry groups with data from 50.8% in 2000
US average: 35.6%
High school or higher
from 94.6% in 2000
US average: 89.6%
from 17.5% in 2000
US average: 14.0%
Section 06
Commute & transportation 27.2 min
Unchangedsince 2000
from 27.2 min in 2000
US average: 26.5
from 83.0% in 2009
US average: 68.9%
from 5.0% in 2009
US average: 8.5%
from 5.5% in 2009
US average: 3.2%
from 4.6% in 2009
US average: 15.0%
from 0.8% in 2009
US average: 2.4%
from 0.1% in 2009
US average: 0.4%
from 2.6% in 2009
US average: 8.3%
Section 07
Work & employment from 4.7% in 2011
US average: 5.2%
from 77.9% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 79.3% in 2020
US average: 74.6%
from 12.2% in 2009
US average: 13.1%
from 49.3% in 2009
US average: 42.5%
Section 08
People & community from 11.3% in 2009
US average: 14.1%
from 5.6% in 2009
US average: 6.2%
from 5.0% in 2012
US average: 13.3%
from 5.2% in 2013
US average: 8.4%
from 89.9% in 2017
US average: 91.0%
Computer in household
from 95.3% in 2020
US average: 95.5%
from 86.7% in 2020
US average: 87.7%
from 81.1% in 2016
US average: 77.7%
from 9.0% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 33.3%(2,832)
Women 15+
Never married 27.3%(2,301)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 5.2% in 2013
US average: 8.4%
from 70.4% in 2020
US average: 54.8%
Direct-purchase
from 11.2% in 2020
US average: 13.8%
from 12.0% in 2020
US average: 18.4%
from 11.6% in 2020
US average: 20.9%
VA health care
from 2.7% in 2020
US average: 2.2%
Any private
from 82.3% in 2020
US average: 67.1%
Any public
from 23.9% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 37.6%(418)
Gulf War (1990s) 27.2%(303)
Share of the 1,112 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper
Places similar to Grayslake Head to head
Compare Grayslake to nearby cities GRAYSLAKE VS
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GRAYSLAKE VS
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GRAYSLAKE VS
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GRAYSLAKE VS
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Income $108,340 −5%
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Frequently asked
How many people live in Grayslake, Illinois? Grayslake, Illinois has about 20,929 residents according to the 2024 American Community Survey.
What is the median household income in Grayslake, Illinois? The typical household in Grayslake, Illinois earns about $113,972 a year. Half of households make more than that, and half make less.
Is Grayslake, Illinois expensive? In Grayslake, Illinois, the median home is worth about $309,500, and the typical rent is about $1,485 a month.
How educated are people in Grayslake, Illinois? About 58.5% of adults age 25 and over in Grayslake, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Grayslake, Illinois? About 6.3% of people in Grayslake, Illinois live below the federal poverty line.
Has Grayslake, Illinois grown since 1990? Yes, Grayslake, Illinois has grown since 1990. The population has added about 13,541 residents, a change of about 183 percent over that period.
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