Census tract · DuPage County
Census Tract 8459.02, DuPage County, Illinois
Census Tract 8459.02, GEOID 17043845902, in DuPage County, Illinois, entirely within Downers Grove Township. 3,466 residents in the ACS 2020-2024 5-year estimates (±430); the 2020 Census counted 3,489.
Residents, 2020-2024
3,466
±430 (90% margin)
2020 Census count: 3,489
Median household income
$116,694
±$26,735 (90% margin)
DuPage County: $112,096
Median home value
$502,000
±$70,875 (90% margin)
DuPage County: $391,400
Median gross rent
$2,493
±$1,711 (90% margin)
DuPage County: $1,688
Where is Census Tract 8459.02?
Census Tract 8459.02 is one of 219 census tracts in DuPage County, Illinois. It covers 3.31 square miles of land, 1,053 residents per square mile in 2020. Its GEOID, 17043845902, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Downers Grove Township | 100% |
| Burr Ridge | 55% |
| Willowbrook, DuPage County | 17% |
8 census tracts border Census Tract 8459.02: Tract 8201.01 in Cook County ($124,334), Tract 8202.03 in Cook County ($129,000), Tract 8202.04 in Cook County ($101,838), Tract 8454.01 ($237,969), Tract 8454.02 ($154,638), Tract 8458.05 ($116,724), Tract 8458.11 ($97,731) and Tract 8459.01 ($176,354). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 8459.02?
The 2020-2024 American Community Survey puts Census Tract 8459.02's population at 3,466 (±430) in 1,278 households; the 2020 Census counted 3,489 residents and 1,372 housing units.
| Measure | Tract 8459.02 | Downers Grove Township |
|---|---|---|
| Total population | 3,466±430 | 149,038 |
| Households | 1,278±127 | 58,598 |
| Average household size | 2.54±0.28 | 2.52 |
| Housing units | 1,404±153 | 61,673 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 8459.02?
The median resident of Census Tract 8459.02 is 54.2 years old; 17.0% are under 18 and 37.5% are 65 or older. The largest group is non-Hispanic white residents at 74.8%, then non-Hispanic Asian residents at 11.7%. 30.2% of residents were born outside the United States.
| Measure | Tract 8459.02 | Downers Grove Township |
|---|---|---|
| Median age | 54.2±5.5 | 43.1 |
| Under 18 years | 17.0%±3.5 pts | 22.2% |
| 65 years and over | 37.5%±5.0 pts | 20.2% |
| Hispanic or Latino (any race) | 5.3%±4.0 pts | 8.7% |
| White alone, not Hispanic | 74.8%±7.3 pts | 72.5% |
| Black or African American alone, not Hispanic | 1.4%±1.3 pts | 4.3% |
| Asian alone, not Hispanic | 11.7%±7.0 pts | 10.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.1 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.1 pts | 0.0% |
| Two or more races, not Hispanic | 6.5%±3.7 pts | 3.4% |
| Some other race alone, not Hispanic | 0.3%±0.6 pts | 0.6% |
| Born outside the United States | 30.2%±6.7 pts | 18.2% |
| Speak a language other than English at home (age 5+) | 39.0%±7.9 pts | 24.1% |
| Civilian veterans (age 18+) | 5.6%±2.7 pts | 3.3% |
| With a disability | 11.6%±4.7 pts | 8.8% |
| No health insurance coverage | 6.2%±2.7 pts | 4.9% |
| High school graduate or higher (age 25+) | 94.7%±2.7 pts | 95.8% |
| Bachelor's degree or higher (age 25+) | 57.1%±6.6 pts | 56.5% |
| Graduate or professional degree (age 25+) | 27.7%±6.6 pts | 25.3% |
| Lived in the same house a year earlier | 95.1%±2.7 pts | 90.2% |
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 Census Tract 8459.02 earn?
Half of the 1,278 households in Census Tract 8459.02 earn less than $116,694 a year (±$26,735), against $112,096 across DuPage County: 102nd highest of the county's 219 tracts with a reliable estimate.
| Measure | Tract 8459.02 | Downers Grove Township |
|---|---|---|
| Median household income | $116,694±$26,735 | $117,335 |
| Mean household income | $181,767±$30,767 | $173,933 |
| Per capita income | $68,043±$12,324 | $69,005 |
| People below the poverty line | 11.5%±9.5 pts | 6.2% |
| Children under 18 below the poverty line | 17.5%±19.3 pts | 5.7% |
| Households receiving SNAP | 3.6%±4.5 pts | 6.9% |
| Households with a computer | 93.3%±5.2 pts | 97.7% |
| Households with a broadband subscription | 91.9%±5.1 pts | 95.3% |
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 Census Tract 8459.02?
Owners occupy 89.7% of Census Tract 8459.02's occupied homes and renters 10.3%. The median owner-occupied home is valued at $502,000 by its owner (±$70,875).
| Measure | Tract 8459.02 | Downers Grove Township |
|---|---|---|
| Median home value (owner-occupied) | $502,000±$70,875 | $454,700 |
| Median gross rent | $2,493±$1,711 | $1,573 |
| Renters paying 35% or more of income on rent | 71.0%±26.6 pts | 37.3% |
| Median monthly owner costs, with a mortgage | $2,389±$280 | $2,621 |
| Owner-occupied homes | 89.7%±6.2 pts | 75.9% |
| Renter-occupied homes | 10.3%±6.2 pts | 24.1% |
| Housing units | 1,404±153 | 61,673 |
| Single-family detached homes | 68.4%±7.9 pts | 62.8% |
| Mobile homes | 0.0%±2.6 pts | 0.4% |
| Built 2020 or later | 0.0%±2.6 pts | 0.9% |
| Built 2010 to 2019 | 3.6%±3.5 pts | 5.0% |
| Built 1939 or earlier | 5.7%±4.8 pts | 6.1% |
| Households with no vehicle | 6.0%±5.0 pts | 4.4% |
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 do people in Census Tract 8459.02 get to work?
56.2% of Census Tract 8459.02's workers drive alone and 26.0% work from home. The average trip to work takes 28.4 minutes.
| Measure | Tract 8459.02 | Downers Grove Township |
|---|---|---|
| In the labor force (age 16+) | 49.2%±6.9 pts | 65.4% |
| Unemployment rate | 2.8%±3.1 pts | 4.3% |
| Drove alone to work | 56.2%±8.6 pts | 63.5% |
| Carpooled | 7.2%±5.1 pts | 5.3% |
| Public transportation | 1.3%±1.8 pts | 5.1% |
| Walked | 1.0%±1.5 pts | 1.4% |
| Worked from home | 26.0%±7.0 pts | 23.4% |
| Mean travel time to work | 28.4 min±3.5 | 28.3 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
How does Census Tract 8459.02 compare with the other tracts in DuPage County?
Among DuPage County's tracts with a reliable estimate, Census Tract 8459.02 ranks as shown below (1 = highest).
| Measure | In DuPage County |
|---|---|
| Population | 169th of 219 |
| Residents per square mile | 209th of 219 |
| Median household income | 102nd of 219 |
| Per capita income | 61st of 219 |
| Median home value | 41st of 219 |
| Bachelor's degree or higher | 89th of 219 |
| Median age | 5th of 219 |
| Owner-occupied share | 56th of 219 |
The tracts next to it on DuPage County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 8438 | 99th | $118,143±$20,142 · within the margin of this tract |
| Tract 8433.02 | 100th | $117,339±$17,210 · within the margin of this tract |
| Tract 8458.05 | 101st | $116,724±$11,776 · within the margin of this tract |
| Tract 8459.02 | 102nd | $116,694±$26,735 |
| Tract 8413.24 | 103rd | $116,477±$31,390 · within the margin of this tract |
| Tract 8435 | 104th | $116,056±$20,109 · within the margin of this tract |
| Tract 8464.11 | 105th | $115,190±$28,558 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 8459.02?
4 of the 18 figures for Census Tract 8459.02 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.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). 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 · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections