CITY · 2020 ACS
Round Lake
Illinois · 18,721 residents · 5.56 sq mi
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The short version
Round Lake is wealthier than most US places, with a median household income of $82,550. The city has more than doubled in size since 2000, adding 12,879 residents. Median home value has risen by half since 2000, reaching $213,300.
At a glance
Wealthier
above the US median
US median: $66,278
Younger
median age 35.1
US median: 38.8
More educated
40% hold a bachelor's degree
US average: 33%
Stable housing
home values roughly flat, inflation adjusted
US median home: $265,253
Section 01
Population & growth
Population, 1990 – 2024
202419K
Age distribution, 2020
Under 56.5%(1,211)
5 to 97.7%(1,443)
10 to 149.1%(1,698)
15 to 198.2%(1,534)
20 to 246%(1,126)
25 to 3412.4%(2,323)
35 to 4415.6%(2,923)
45 to 5415.8%(2,963)
55 to 6410.6%(1,983)
65 to 745.5%(1,027)
75 to 842.1%(389)
85 and over0.5%(101)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$82,550
−5%inflation adjusted, since 2000
from $58,051 in 2000
US average: $66,278
1990 – 2024
Households earning $100K+
56.4%
+10.4 ptssince 2009
from 46.0% in 2009
US average: 43.9%
Workforce by industry, 2020
Information14.9%
Retail trade14.3%
Finance & insurance6.9%
Professional, scientific, technical6.9%
Other services6.3%
Wholesale trade5.7%
Public administration5.5%
Transportation & warehousing3.8%
Arts, entertainment, food0.6%
Agriculture, forestry, fishing0.2%
Construction0.2%
Manufacturing0%
Education & health services0%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$213,300
+3%inflation adjusted, since 2000
from $138,000 in 2000
US average: $265,253
1990 – 2024
2.6
−18%since 2009
from 3.2 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
RELATED:See current rent listings in Round Lake on RentDataNow
Section 04
Race & ethnicity
2000
White, non-Hispanic72.2%(4,217)
Black2%(116)
Hispanic / Latino22.1%(1,292)
Asian1.9%(112)
Other0%
2020
White, non-Hispanic47.6%(8,909)
Black6.1%(1,142)
Hispanic / Latino31.5%(5,898)
Asian10.3%(1,925)
Other3.7%(687)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry
Hispanic origin
Mexican19.2%(3,503)
Puerto Rican0.6%(108)
South American0.5%(86)
Colombian0.2%(45)
Central American0.2%(44)
Cuban0.2%(34)
Guatemalan0.2%(31)
Peruvian0.1%(26)
Ecuadorian0.1%(15)
Salvadoran0.1%(13)
Asian origin
Asian Indian5.9%(1,071)
Filipino4%(723)
Korean1.2%(226)
Vietnamese0.8%(141)
Chinese0.2%(39)
Sri Lankan0.1%(18)
Pacific Islander origin
Native Hawaiian0.1%(11)
Ancestry
German13.1%(2,385)
Polish12.2%(2,222)
Irish6.6%(1,199)
Italian4.4%(800)
American4.1%(748)
Russian2.5%(458)
English2.4%(432)
Swedish1.8%(329)
Greek1.1%(208)
French Canadian1.1%(205)
Romanian1.1%(205)
Hungarian1.1%(195)
+ 25 more ancestry groups with data
Subsaharan African1%(181)
Nigerian1%(181)
Slovak0.9%(163)
Czech0.8%(151)
Norwegian0.8%(146)
West Indian0.6%(118)
Dutch0.6%(113)
Ukrainian0.6%(112)
Finnish0.5%(89)
Scotch-Irish0.5%(88)
Danish0.5%(85)
Scottish0.4%(77)
Haitian0.3%(56)
Slovene0.3%(46)
Jamaican0.2%(44)
British0.2%(39)
Armenian0.2%(30)
French0.1%(26)
Latvian0.1%(25)
Belgian0.1%(16)
Serbian0.1%(16)
Austrian0%(8)
Lebanese0%(6)
Canadian0%(1)
Welsh0%(1)
Section 05
Education
High school or higher
90.4%
+16.6 ptssince 2000
from 73.8% in 2000
US average: 88.5%
Section 06
Commute & transportation
Section 07
Work & employment
Section 08
People & community
Marital status (2024)
Men 15+
Never married30.2%(2,085)
Married60.3%(4,154)
Widowed2.2%(154)
Divorced7.3%(500)
Women 15+
Never married29.9%(2,241)
Married50.9%(3,809)
Widowed3.2%(237)
Divorced16%(1,198)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
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Compare Round Lake to nearby cities
ROUND LAKE VS
Round Lake Beach
Income$86,059+4%
Home value$199,200−7%
Population26,902+45%
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ROUND LAKE VS
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Income$113,972+38%
Home value$309,500+45%
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ROUND LAKE VS
Wauconda
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Home value$278,600+31%
Population13,993−24%
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ROUND LAKE VS
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Home value$351,700+65%
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Frequently asked
How many people live in Round Lake, Illinois?
Round Lake, Illinois has about 18,721 residents according to the 2020 American Community Survey.
What is the median household income in Round Lake, Illinois?
The typical household in Round Lake, Illinois earns about $82,550 a year. Half of households make more than that, and half make less.
Is Round Lake, Illinois expensive?
In Round Lake, Illinois, the median home is worth about $213,300, and the typical rent is about $1,171 a month.
How educated are people in Round Lake, Illinois?
About 40.4% of adults age 25 and over in Round Lake, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Round Lake, Illinois?
About 8.7% of people in Round Lake, Illinois live below the federal poverty line.
Has Round Lake, Illinois grown since 1990?
Yes, Round Lake, Illinois has grown since 1990. The population has added about 15,172 residents, a change of about 428 percent over that period.
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IllinoisDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024