City · Illinois
Darien, Illinois
Darien, city, in DuPage County, Illinois. Darien had 22,032 residents on July 1, 2025 by the Census Bureau's estimate, down 0.1% since 2020; the 2020 Census counted 22,011 and the ACS 2020-2024 5-year estimates put it at 21,879 (±50). GEOID 1718628.
Residents, July 2025 estimate
22,032
Census Bureau estimate (no margin published)
2020 Census count: 22,011 · ACS 2020-2024: 21,879 ±50
Median household income
$111,215
±$8,951 (90% margin)
Illinois: $83,390
Median home value
$398,700
±$16,048 (90% margin)
Illinois: $263,300
Median gross rent
$1,857
±$336 (90% margin)
Illinois: $1,274
Where is Darien and what county is it in?
Darien is a city in DuPage County, Illinois. It covers 6.2 square miles of land, 3,565 residents per square mile in 2020.
Darien is in the Chicago-Naperville-Elgin, IL-IN metropolitan statistical area, which takes in 13 counties (Census Bureau delineation, July 2023).
Darien lies entirely within Downers Grove Township, a township with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Darien, and is it growing?
The Census Bureau estimates that 22,032 people lived in Darien on July 1, 2025, down 0.1% since 2020, a smaller fall than Illinois's (−0.8%). The 2020 Census counted 22,011 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 21,879 (±50).
| Measure | Darien | DuPage County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 21,879 ±50 | 930,024 | no clear change |
| Households | 8,735 ±376 | 350,758 | no clear change |
| Average household size | 2.50 ±0.11 | 2.61 | no clear change |
| Housing units | 8,950 ±374 | 367,152 | no clear change |
Darien's population since 2000
From 22,860 in 2000 to 22,032 in 2025: down 3.6%. The 2000, 2010 and 2020 figures are census counts, each for Darien as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Darien?
The median resident of Darien is 44.4 years old; 18.8% are under 18 and 24.3% are 65 or older. The largest group is non-Hispanic white residents at 73.2%, then non-Hispanic Asian residents at 11.9%. 19.5% of residents were born outside the United States.
| Measure | Darien | DuPage County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 44.4 ±2.6 | 40.2 | no clear change |
| Under 18 years | 18.8% ±2.3 pts | 22.2% | – |
| 65 years and over | 24.3% ±2.6 pts | 17.3% | – |
| Male | 49.0% ±2.0 pts | 49.5% | – |
| Hispanic or Latino (any race) | 9.3% ±2.5 pts | 16.1% | +3.6 pts |
| White alone, not Hispanic | 73.2% ±3.6 pts | 62.2% | no clear change |
| Black or African American alone, not Hispanic | 2.6% ±1.2 pts | 4.8% | no clear change |
| Asian alone, not Hispanic | 11.9% ±2.4 pts | 13.0% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.1 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.2 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.8% ±1.0 pts | 3.5% | – |
| Some other race alone, not Hispanic | 0.2% ±0.2 pts | 0.4% | – |
| Born outside the United States | 19.5% ±2.5 pts | 20.5% | no clear change |
| Speak a language other than English at home (age 5+) | 25.8% ±3.2 pts | 29.6% | – |
| Civilian veterans (age 18+) | 3.7% ±1.1 pts | 3.5% | – |
| With a disability | 10.6% ±1.4 pts | 9.0% | – |
| No health insurance coverage | 7.4% ±2.1 pts | 5.2% | +3.7 pts |
| High school graduate or higher (age 25+) | 95.1% ±1.3 pts | 93.0% | – |
| Bachelor's degree or higher (age 25+) | 52.4% ±3.2 pts | 51.8% | no clear change |
| Graduate or professional degree (age 25+) | 20.3% ±2.6 pts | 21.1% | – |
| Lived in the same house a year earlier | 90.7% ±2.7 pts | 89.7% | – |
| Moved from another state in the past year | 0.9% ±0.5 pts | 1.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Darien earn?
Half of Darien's 8,735 households earn less than $111,215 a year (±$8,951), against $112,096 in DuPage County and $83,390 in Illinois. In 2015-2019 it was $118,485 in 2024 dollars; the margins of error cannot tell the two periods apart. 4.2% of residents live below the poverty line.
| Measure | Darien | DuPage County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $111,215 ±$8,951 | $112,096 | no clear change |
| Mean household income | $140,352 ±$8,550 | $152,117 | – |
| Per capita income | $55,898 ±$3,703 | $58,189 | −$6,129 |
| People below the poverty line | 4.2% ±1.3 pts | 6.6% | no clear change |
| Children under 18 below the poverty line | 4.6% ±2.7 pts | 7.0% | no clear change |
| Households receiving SNAP | 7.0% ±2.3 pts | 7.4% | – |
| Households with a computer | 96.5% ±1.3 pts | 97.5% | – |
| Households with a broadband subscription | 96.1% ±1.4 pts | 94.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Darien?
Owners occupy 78.8% of Darien's occupied homes and renters 21.2%. The median owner-occupied home is valued at $398,700 by its owner (±$16,048). The median renter pays $1,857 a month including utilities, and 33.8% of renters pay 35% or more of their income on rent.
| Measure | Darien | DuPage County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $398,700 ±$16,048 | $391,400 | no clear change |
| Median gross rent | $1,857 ±$336 | $1,688 | +$379 |
| Renters paying 35% or more of income on rent | 33.8% ±9.4 pts | 36.1% | no clear change |
| Median monthly owner costs, with a mortgage | $2,246 ±$102 | $2,450 | – |
| Owner-occupied homes | 78.8% ±3.0 pts | 73.1% | −4.3 pts |
| Renter-occupied homes | 21.2% ±3.0 pts | 26.9% | – |
| Housing units | 8,950 ±374 | 367,152 | no clear change |
| Homeowner vacancy rate | 0.5% ±0.6 pts | 0.7% | – |
| Rental vacancy rate | 5.0% ±5.6 pts | 5.6% | – |
| Single-family detached homes | 60.6% ±3.1 pts | 58.4% | – |
| Mobile homes | 0.3% ±0.3 pts | 0.3% | – |
| Built 2020 or later | 0.3% ±0.3 pts | 0.8% | – |
| Built 2010 to 2019 | 2.0% ±1.9 pts | 4.7% | – |
| Built 1939 or earlier | 0.6% ±0.6 pts | 5.3% | – |
| Households with no vehicle | 3.7% ±1.4 pts | 4.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Darien building?
Builders took permits for 2 new housing units in Darien in 2025 (2 in single-family houses), 0.1 per 1,000 residents against 1.5 across Illinois.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Darien work and get to work?
68.9% of Darien's workers drive alone and 20.5% work from home. The average trip to work takes 28.7 minutes. The unemployment rate in 2020-2024 averaged 3.9%.
| Measure | Darien | DuPage County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 65.9% ±2.6 pts | 68.0% | – |
| Unemployment rate | 3.9% ±1.6 pts | 4.9% | no clear change |
| Drove alone to work | 68.9% ±3.9 pts | 64.9% | – |
| Carpooled | 5.7% ±2.2 pts | 6.8% | – |
| Public transportation | 2.7% ±1.1 pts | 4.0% | – |
| Walked | 1.1% ±0.7 pts | 1.5% | – |
| Worked from home | 20.5% ±3.5 pts | 21.5% | +14.1 pts |
| Mean travel time to work | 28.7 min ±1.7 | 27.7 min | −3.5 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Darien?
5 census tracts lie mostly in Darien, and 6 more reach into it (2020 census blocks). Their median household incomes run from $77,645 (Tract 8458.10) to $134,297 (Tract 8455.07).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 8458.07DuPage County | 6,487 | $121,528 |
| Tract 8458.10DuPage County | 4,385 | $77,645 |
| Tract 8455.07DuPage County | 3,419 | $134,297 |
| Tract 8458.09DuPage County | 4,926 | $140,026 |
| Tract 8458.02DuPage County | 3,459 | $94,700 |
| Tract 8455.05DuPage County | 3,658 | $111,250 |
| Tract 8458.05DuPage County | 3,889 | $116,724 |
| Tract 8455.08DuPage County | 3,829 | $97,585 |
| Tract 8458.11DuPage County | 3,385 | $97,731 |
| Tract 8458.03DuPage County | 5,409 | $71,638 |
| Tract 8458.08DuPage County | 3,492 | $153,750 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Darien) · Census block assignment files
How does Darien compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Darien is the 1,788th-most populous of the 19,476 U.S. incorporated places that have one and the 108th-most populous of 1,294 in Illinois.
Darien ranks 219th of 1,380 places in Illinois with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 108th | 1,294 |
| Growth 2020-2025 (PEP) | 296th | 1,347 |
| Residents per square mile | 122nd | 1,383 |
| Median household income | 219th | 1,380 |
| Per capita income | 158th | 1,383 |
| Median home value | 96th | 1,379 |
| Median gross rent | 73rd | 1,280 |
| Poverty rate | 1,014th | 1,119 |
| Bachelor's degree or higher | 124th | 1,369 |
| Median age | 363rd | 1,383 |
| Owner-occupied share | 641st | 1,382 |
| Work from home | 141st | 1,015 |
| Travel time to work | 375th | 1,382 |
Darien's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Darien with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Darien?
9 of the 57 figures for Darien on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Darien are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Darien.