Darien, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Darien, Illinois is 21,855 as of the 2023 American Community Survey, making it the 110th-largest city in Illinois. The median household income is $109,354, the median home value is $386,400, and the median age is 44.8.
The population has grown 0.2% since 2010 (21,976 → 22,015).
21,855
Population
3540
People / sq mi
$109,354
Median Income
$386,400
Median Home Value
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Darien covers 6.2 sq mi of land at 3540 people per square mile.
About Darien, IL
Age is the most distinctive thing about Darien: a median age of 44.8, older than the national median. With 21,855 residents, Darien is a city in Illinois.
The typical household earns $109,354 a year, above the US median of $78,538. The poverty rate, 2.9%, is on the lower side for US cities and below the national 12.4%. Homes carry a median value of $386,400, with typical rent around $1,671.
College attainment is above the local norm at 51.7%, above the national 35.0%. About 19.0% of workers primarily work from home, above the national 14.0%, and the average commute runs about 30 minutes each way.
The age structure shapes everything downstream in Darien — from housing demand to the mix of working-age earners reflected in the income figures above.
Darien city Population History (2010-2024)
The city of Darien city had a population of 21,976 in 2010 and 22,015 in 2024, a 0.2% growth over 14 years. The peak was 22,200 in 2013. Average annual growth rate: 0.02%.
22,015
Population (2024)
21,976
Population (2010)
22,200
Peak (2013)
0.02%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 21,976 |
| 2011 | 22,086 |
| 2012 | 22,149 |
| 2013 | 22,200 |
| 2014 | 22,173 |
| 2015 | 22,111 |
| 2016 | 21,987 |
| 2017 | 21,931 |
| 2018 | 21,790 |
| 2019 | 21,628 |
| 2020 | 21,998 |
| 2021 | 21,805 |
| 2022 | 21,662 |
| 2023 | 21,863 |
| 2024 | 22,015 |
Race & Ethnicity
| White | 75.4% |
| Black or African American | 3.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Economy & Income
$109,354
Median Household Income
$53,601
Per Capita Income
2.9%
Poverty Rate
2.6%
Unemployment Rate
Housing
$386,400
Median Home Value
$1,671
Median Rent
78.5%
Owner-Occupied
Education
95.1%
High School+
51.7%
Bachelor's+
Commute
2.6%
Drive Alone
70.4%
Public Transit
19.0%
Work From Home
29.5 min
Avg Commute
Community Profile
11.0%
Foreign Born
73.8%
Non-English at Home
4.3%
Veterans
9.2%
With Disability
92.5%
Health Insurance
96.6%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 20.5% |
| Finance, Insurance & Real Estate | 14.5% |
| Retail Trade | 9.5% |
| Education, Health Care & Social Services | 9.4% |
| Manufacturing | 9.0% |
| Information | 8.6% |
| Construction | 5.8% |
| Arts, Entertainment & Food Services | 3.8% |
| Public Administration | 2.3% |
| Transportation & Warehousing | 1.6% |
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Frequently Asked Questions
Darien, Illinois has a population of 21,855 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 110th-largest city in Illinois.
The median household income in Darien, Illinois is $109,354, with 2.9% of residents living below the federal poverty level.
The median home value in Darien, Illinois is $386,400, with median monthly rent at $1,671 and a homeownership rate of 78.5%.
The median age in Darien, Illinois is 44.8 years. The population is 49.3% male and 50.7% female.
The population has grown 0.2% since 2010 (21,976 → 22,015).
Darien city, IL Climate
Darien city, IL has an average annual temperature of 9.7°C (49°F) and receives about 941 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.7°C
Avg Temp
941
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -6° / 22° | 41 mm |
| February | -3° / 27° | 38 mm |
| March | 3° / 38° | 67 mm |
| April | 9° / 49° | 98 mm |
| May | 15° / 59° | 95 mm |
| June | 21° / 69° | 103 mm |
| July | 23° / 74° | 97 mm |
| August | 22° / 72° | 101 mm |
| September | 18° / 64° | 91 mm |
| October | 11° / 53° | 69 mm |
| November | 4° / 40° | 78 mm |
| December | -2° / 28° | 63 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Darien city, IL
The most comfortable months to visit Darien city, IL are typically June, August and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -10°C low). June is usually the wettest month.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.