United States › Illinois › Algonquin CITY · 2000 CENSUS
Algonquin Illinois · 23,276 residents · 12.5 sq mi
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The short version
Algonquin is a city of 23,276 people in Illinois. Since 1990 the city has more than doubled, up 11,571 people. 94% of homes are owner-occupied. Households here earn about 71% more than in Illinois as a whole. Median household income runs $79,730, well clear of the $42,589 US median. 39% of adults hold a bachelor's degree, against 24% nationally.
At a glance
Wealthier
above the US median
US median: $42,589
Younger
median age 33.6
US median: 35.2
More educated
39% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01
Population & growth from 31.0 in 1990
US average: 35.2
Population, 1990 – 2024
10K 16K 21K 27K 33K 1990 2000 2010 2020 2024 Algonquin Age distribution, 2000
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $79,730
+13%inflation adjusted, since 1990
from $53,665 in 1990
US average: $42,589
from $19,255 in 1990
US average: $21,522
from 1.6% in 1990
US average: 12.4%
$194,500
+10%inflation adjusted, since 1990
from $134,600 in 1990
US average: $120,530
$795
+14%inflation adjusted, since 1990
from $527 in 1990
US average: $602
from 89.5% in 1990
6.3% rent
Section 04
Race & ethnicity 1990
White, non-Hispanic 98.1%(11,478)
Hispanic / Latino 1.6%(188)
2000
White, non-Hispanic 91.6%(21,327)
Hispanic / Latino 4.1%(948)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Detailed origin tables are available for 2024; showing 2024 data.
Hispanic origin
+ 3 more hispanic origin groups with data Ancestry
+ 33 more ancestry groups with data from 32.9% in 1990
US average: 24.4%
High school or higher
from 90.6% in 1990
US average: 80.3%
from 8.7% in 1990
US average: 8.8%
Section 06
Commute & transportation from 30.5 min in 1990
US average: 17.6
Section 07
Work & employment No data for the years selected.
Section 08
People & community No data for the years selected.
Marital status
Men 15+
Never married 19.3%(1,562)
Women 15+
Never married 17.8%(1,522)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 6.4% in 2013
US average: 8.4%
from 74.8% in 2020
US average: 54.8%
Direct-purchase
from 15.5% in 2020
US average: 13.8%
from 13.8% in 2020
US average: 18.4%
from 7.3% in 2020
US average: 20.9%
VA health care
from 1.6% in 2020
US average: 2.2%
Any private
from 87.2% in 2020
US average: 67.1%
Any public
from 20.0% 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) 25.2%(330)
Gulf War (1990s) 25.4%(333)
Share of the 1,311 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 Algonquin Head to head
Compare Algonquin to nearby cities ALGONQUIN VS
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ALGONQUIN VS
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ALGONQUIN VS
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Home value $347,300 +79%
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Frequently asked
How many people live in Algonquin, Illinois? Algonquin, Illinois has about 23,276 residents according to the 2000 Census.
What is the median household income in Algonquin, Illinois? The typical household in Algonquin, Illinois earns about $79,730 a year. Half of households make more than that, and half make less.
Is Algonquin, Illinois expensive? In Algonquin, Illinois, the median home is worth about $194,500, and the typical rent is about $795 a month.
How educated are people in Algonquin, Illinois? About 38.7% of adults age 25 and over in Algonquin, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Algonquin, Illinois? About 1.7% of people in Algonquin, Illinois live below the federal poverty line.
Has Algonquin, Illinois grown since 1990? Yes, Algonquin, Illinois has grown since 1990. The population has added about 11,571 residents, a change of about 99 percent over that period.
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