Algonquin, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Algonquin, Illinois is 29,904 as of the 2023 American Community Survey, making it the 66th-largest city in Illinois. The median household income is $131,753, the median home value is $324,000, and the median age is 41.3.
The population has grown 1.5% since 2010 (30,082 → 30,539).
29,904
Population
2388
People / sq mi
$131,753
Median Income
$324,000
Median Home Value
Algonquin covers 12.5 sq mi of land at 2388 people per square mile.
About Algonquin, IL
Algonquin is a city in Illinois with a population of 29,904. It ranks #66 among cities in Illinois by population. The median age is 41.3, older than the national median. The population is 50.4% male and 49.6% female.
The median household income in Algonquin is $131,753, above the US median of $74,580. 2.4% of residents live below the federal poverty level. Home values sit at a median of $324,000, with monthly rent averaging $1,800. The homeownership rate of 87.8% is higher than the national rate of 64.8%.
Educational attainment in Algonquin reflects 43.6% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 19.4% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 32.0 minutes each way.
Algonquin village Population History (2010-2024)
The city of Algonquin village had a population of 30,082 in 2010 and 30,539 in 2024, a 1.5% growth over 14 years. The peak was 30,897 in 2019. Average annual growth rate: 0.12%.
30,539
Population (2024)
30,082
Population (2010)
30,897
Peak (2019)
0.12%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 30,082 |
| 2011 | 30,031 |
| 2012 | 29,954 |
| 2013 | 30,390 |
| 2014 | 30,321 |
| 2015 | 30,471 |
| 2016 | 30,888 |
| 2017 | 30,895 |
| 2018 | 30,861 |
| 2019 | 30,897 |
| 2020 | 29,679 |
| 2021 | 29,978 |
| 2022 | 29,973 |
| 2023 | 30,212 |
| 2024 | 30,539 |
Race & Ethnicity
| White | 79.4% |
| Black or African American | 2.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Economy & Income
$131,753
Median Household Income
$53,698
Per Capita Income
2.4%
Poverty Rate
3.2%
Unemployment Rate
Housing
$324,000
Median Home Value
$1,800
Median Rent
87.8%
Owner-Occupied
Education
95.2%
High School+
43.6%
Bachelor's+
Commute
1.0%
Drive Alone
72.9%
Public Transit
19.4%
Work From Home
32.0 min
Avg Commute
Community Profile
15.7%
Foreign Born
79.4%
Non-English at Home
5.4%
Veterans
9.1%
With Disability
95.6%
Health Insurance
96.2%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 21.4% |
| Finance, Insurance & Real Estate | 14.5% |
| Manufacturing | 13.3% |
| Information | 9.3% |
| Education, Health Care & Social Services | 5.6% |
| Retail Trade | 5.6% |
| Construction | 5.5% |
| Arts, Entertainment & Food Services | 3.4% |
| Public Administration | 3.2% |
| Transportation & Warehousing | 2.9% |
Largest cities in Illinois
Largest counties in Illinois
Part of Illinois
Metro areas in Illinois
City rankings
Frequently Asked Questions
Algonquin, Illinois has a population of 29,904 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 66th-largest city in Illinois.
The median household income in Algonquin, Illinois is $131,753, with 2.4% of residents living below the federal poverty level.
The median home value in Algonquin, Illinois is $324,000, with median monthly rent at $1,800 and a homeownership rate of 87.8%.
The median age in Algonquin, Illinois is 41.3 years. The population is 50.4% male and 49.6% female.
The population has grown 1.5% since 2010 (30,082 → 30,539).
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.