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CITY

Algonquin

Illinois · 30,824 residents (2025 est.) · 12.539 sq mi
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The short version

Algonquin is significantly wealthier than the US average, with a median household income of $134,525. Population has grown 29% since 2000. Median home value has more than doubled since 2000, reaching $351,000. Poverty is rare here, at 4.1% of residents. It ranks in the top 5% of US cities for household income. Households here earn about 61% more than the Illinois median.

At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 41.4
US median: 38.9
More educated
44% 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

Total population
30,067
+29%since 2000
from 23,276 in 2000
1990 – 2025
Population density
2,398 / sq mi
+29%since 2000
from 1,856 / sq mi in 2000
US average: 281
Median age
41.4
+23%since 2000
from 33.6 in 2000
US average: 38.9

PEP 2025 EST:30,824 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
10K16K21K27K33K1990201020202024Algonquin
202430K
1990201020202024
Section 02

Income & economy

Median household income
$134,525
−7%inflation adjusted, since 2000
from $79,730 in 2000
US average: $82,259
1990 – 2024
Per capita income
$54,037
+81%since 2000
from $29,820 in 2000
US average: $44,673
Households earning $100K+
77.3%
+14.1 ptssince 2009
from 63.2% in 2009
US average: 53.3%
Poverty rate
4.1%
+2.5 ptssince 2000
from 1.7% in 2000
US average: 12.5%
Income inequality (Gini)
0.349
−2%since 2010
from 0.357 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade13.8%
US avg: 9.9%
Information13.2%
US avg: 10.8%
Other services8.7%
US avg: 6.7%
Public administration7.3%
US avg: 4.8%
Wholesale trade5.4%
US avg: 6.9%
Finance & insurance5%
US avg: 5.9%
Professional, scientific, technical4.9%
US avg: 5.1%
Transportation & warehousing3%
US avg: 2.2%
Arts, entertainment, food2.6%
US avg: 1.9%
Education & health services0.1%
US avg: 0.9%
Agriculture, forestry, fishing0%
US avg: 1.6%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.4%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$351,000
−1%inflation adjusted, since 2000
from $194,500 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,723
+19%inflation adjusted, since 2000
from $795 in 2000
US average: $1,442
Owner-occupied
88.2%
−5.5 ptssince 2000
from 93.7% in 2000
11.8% rent
Vacancy rate
1.6%
−0.4 ptssince 2009
from 2.0% in 2009
US average: 10.0%
Owner cost-burdened
18.5%
−14.4 ptssince 2009
from 32.9% in 2009
US average: 22.9%
Renter cost-burdened
42.7%
−8.3 ptssince 2009
from 51.0% in 2009
US average: 47.4%
Afford Score
2.6
+7%since 2000
from 2.4 in 2000
1990 – 2024
Gentrification Score
24
RELATED:See current rent listings in Algonquin on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic91.6%(21,327)
Black0.8%(194)
Hispanic / Latino4.1%(948)
Asian2.3%(542)
Other0%
Diversity Score17.3%(4,035)
2024
White, non-Hispanic72.7%(21,867)
Black2.8%(832)
Hispanic / Latino15.6%(4,682)
Asian5.3%(1,581)
Other3.7%(1,105)
Diversity Score55.2%(16,610)
Diversity Score
55
+219%since 2000
from 17 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
43.6%
+4.9 ptssince 2000
from 38.7% in 2000
US average: 35.6%
High school or higher
95.7%
+0.6 ptssince 2000
from 95.0% in 2000
US average: 89.6%
Graduate degree
16.3%
+5.1 ptssince 2000
from 11.1% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
30.6 min
+16%since 2000
from 26.5 min in 2000
US average: 26.5
Drive alone to work
68.4%
−15.1 ptssince 2009
from 83.5% in 2009
US average: 68.9%
Carpooled to work
5.2%
−1.8 ptssince 2009
from 7.0% in 2009
US average: 8.5%
Public transit
1.2%
−1.4 ptssince 2009
from 2.6% in 2009
US average: 3.2%
Worked from home
23.1%
+17.8 ptssince 2009
from 5.3% in 2009
US average: 15.0%
Walked to work
0.9%
+0.4 ptssince 2009
from 0.5% in 2009
US average: 2.4%
Biked to work
0.0%
−0.3 ptssince 2009
from 0.3% in 2009
US average: 0.4%
No vehicle available
6.1%
+3.7 ptssince 2009
from 2.4% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
4.1%
−4.1 ptssince 2011
from 8.3% in 2011
US average: 5.2%
Labor force participation
71.6%
−3.1 ptssince 2011
from 74.7% in 2011
US average: 63.5%
Self-employed
14.2%
+5.1 ptssince 2009
from 9.0% in 2009
US average: 13.1%
Management & professional
48.1%
−18.9 ptssince 2009
from 67.0% in 2009
US average: 42.5%
Section 08

People & community

Male
50.2%
+0.1 ptssince 2009
from 50.1% in 2009
Female
49.8%
−0.1 ptssince 2009
from 49.9% in 2009
Foreign born
12.3%
+0.7 ptssince 2009
from 11.6% in 2009
US average: 14.1%
Veterans
5.5%
−43.7 ptssince 2009
from 49.2% in 2009
US average: 6.2%
With a disability
9.7%
+4.1 ptssince 2012
from 5.6% in 2012
US average: 13.3%
Uninsured
4.0%
−89.6 ptssince 2013
from 93.6% in 2013
US average: 8.4%
Broadband at home
95.0%
+2.5 ptssince 2017
from 92.5% in 2017
US average: 91.0%
English only at home
79.3%
−2.1 ptssince 2016
from 81.4% in 2016
US average: 77.7%
Spanish at home
9.3%
+4.5 ptssince 2016
from 4.8% in 2016
US average: 13.6%
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Frequently asked

How many people live in Algonquin, Illinois?

Algonquin, Illinois has about 30,067 residents according to the 2024 American Community Survey.

What is the median household income in Algonquin, Illinois?

The typical household in Algonquin, Illinois earns about $134,525 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 $351,000, and the typical rent is about $1,723 a month.

How educated are people in Algonquin, Illinois?

About 43.6% 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 4.1% 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 18,362 residents, a change of about 157 percent over that period.

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

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