Census tract · DuPage County
Census Tract 8457.02, DuPage County, Illinois
Census Tract 8457.02, GEOID 17043845702, in DuPage County, Illinois, entirely within Downers Grove and Downers Grove Township. 4,663 residents in the ACS 2020-2024 5-year estimates (±500); the 2020 Census counted 4,839.
Residents, 2020-2024
4,663
±500 (90% margin)
2020 Census count: 4,839
Median household income
$159,899
±$22,809 (90% margin)
DuPage County: $112,096
Median home value
$480,600
±$19,847 (90% margin)
DuPage County: $391,400
Median gross rent
$1,889
±$875 (90% margin)
DuPage County: $1,688
Where is Census Tract 8457.02?
Census Tract 8457.02 is one of 219 census tracts in DuPage County, Illinois. It covers 1.30 square miles of land, 3,714 residents per square mile in 2020. Its GEOID, 17043845702, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Downers Grove | 100% |
| Downers Grove Township | 100% |
6 census tracts border Census Tract 8457.02: Tract 8449.02 ($142,639), Tract 8455.05 ($111,250), Tract 8455.06 ($76,607), Tract 8456.01 ($123,125), Tract 8457.01 ($99,688) and Tract 8457.04 ($84,625). 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 8457.02?
The 2020-2024 American Community Survey puts Census Tract 8457.02's population at 4,663 (±500) in 1,637 households; the 2020 Census counted 4,839 residents and 1,827 housing units.
| Measure | Tract 8457.02 | Downers Grove |
|---|---|---|
| Total population | 4,663 ±500 | 50,054 |
| Households | 1,637 ±141 | 20,662 |
| Average household size | 2.84 ±0.16 | 2.39 |
| Housing units | 1,696 ±127 | 21,527 |
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 8457.02?
The median resident of Census Tract 8457.02 is 42.3 years old; 25.5% are under 18 and 18.1% are 65 or older. The largest group is non-Hispanic white residents at 85.8%, then non-Hispanic residents of two or more races at 5.1%. 6.7% of residents were born outside the United States.
| Measure | Tract 8457.02 | Downers Grove |
|---|---|---|
| Median age | 42.3 ±4.1 | 43.6 |
| Under 18 years | 25.5% ±2.8 pts | 21.9% |
| 65 years and over | 18.1% ±2.2 pts | 21.0% |
| Hispanic or Latino (any race) | 3.6% ±2.2 pts | 5.9% |
| White alone, not Hispanic | 85.8% ±5.8 pts | 80.9% |
| Black or African American alone, not Hispanic | 4.0% ±2.8 pts | 2.7% |
| Asian alone, not Hispanic | 1.4% ±1.7 pts | 5.6% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 5.1% ±4.0 pts | 4.4% |
| Some other race alone, not Hispanic | 0.2% ±0.2 pts | 0.4% |
| Born outside the United States | 6.7% ±2.4 pts | 10.0% |
| Speak a language other than English at home (age 5+) | 10.0% ±3.4 pts | 13.6% |
| Civilian veterans (age 18+) | 6.7% ±2.7 pts | 4.0% |
| With a disability | 7.6% ±2.5 pts | 8.9% |
| No health insurance coverage | 0.6% ±0.6 pts | 3.2% |
| High school graduate or higher (age 25+) | 96.2% ±1.9 pts | 96.2% |
| Bachelor's degree or higher (age 25+) | 60.8% ±6.0 pts | 58.2% |
| Graduate or professional degree (age 25+) | 24.9% ±5.9 pts | 24.4% |
| Lived in the same house a year earlier | 91.7% ±4.8 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 8457.02 earn?
Half of the 1,637 households in Census Tract 8457.02 earn less than $159,899 a year (±$22,809), against $112,096 across DuPage County: 35th highest of the county's 219 tracts with a reliable estimate.
| Measure | Tract 8457.02 | Downers Grove |
|---|---|---|
| Median household income | $159,899 ±$22,809 | $115,114 |
| Mean household income | $193,838 ±$19,636 | $162,508 |
| Per capita income | $69,538 ±$6,811 | $67,928 |
| People below the poverty line | 2.9% ±2.3 pts | 5.5% |
| Children under 18 below the poverty line | 0.0% ±3.1 pts | 1.5% |
| Households receiving SNAP | 2.3% ±2.0 pts | 5.9% |
| Households with a computer | 99.5% ±0.9 pts | 97.9% |
| Households with a broadband subscription | 98.4% ±1.3 pts | 94.0% |
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 8457.02?
Owners occupy 96.8% of Census Tract 8457.02's occupied homes and renters 3.2%. The median owner-occupied home is valued at $480,600 by its owner (±$19,847). The median renter pays $1,889 a month including utilities.
| Measure | Tract 8457.02 | Downers Grove |
|---|---|---|
| Median home value (owner-occupied) | $480,600 ±$19,847 | $449,800 |
| Median gross rent | $1,889 ±$875 | $1,656 |
| Renters paying 35% or more of income on rent | 26.5% ±42.6 pts | 40.9% |
| Median monthly owner costs, with a mortgage | $2,983 ±$215 | $2,553 |
| Owner-occupied homes | 96.8% ±2.3 pts | 75.2% |
| Renter-occupied homes | 3.2% ±2.3 pts | 24.8% |
| Housing units | 1,696 ±127 | 21,527 |
| Single-family detached homes | 98.9% ±1.2 pts | 62.0% |
| Mobile homes | 0.0% ±2.2 pts | 0.7% |
| Built 2020 or later | 0.0% ±2.2 pts | 0.6% |
| Built 2010 to 2019 | 5.5% ±3.7 pts | 6.1% |
| Built 1939 or earlier | 5.1% ±2.7 pts | 8.8% |
| Households with no vehicle | 1.0% ±1.1 pts | 5.4% |
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 8457.02 get to work?
64.1% of Census Tract 8457.02's workers drive alone and 24.8% work from home. The average trip to work takes 28.8 minutes. The unemployment rate in 2020-2024 averaged 5.7%.
| Measure | Tract 8457.02 | Downers Grove |
|---|---|---|
| In the labor force (age 16+) | 70.4% ±4.0 pts | 66.5% |
| Unemployment rate | 5.7% ±3.2 pts | 4.0% |
| Drove alone to work | 64.1% ±5.7 pts | 61.2% |
| Carpooled | 2.3% ±1.7 pts | 4.5% |
| Public transportation | 8.1% ±4.7 pts | 7.4% |
| Walked | 0.4% ±0.6 pts | 2.3% |
| Worked from home | 24.8% ±5.1 pts | 23.8% |
| Mean travel time to work | 28.8 min ±2.5 | 27.8 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 8457.02 compare with the other tracts in DuPage County?
Among DuPage County's tracts with a reliable estimate, Census Tract 8457.02 ranks as shown below (1 = highest).
| Measure | In DuPage County | In Downers Grove |
|---|---|---|
| Population | 71st of 219 | 4th of 12 |
| Residents per square mile | 118th of 219 | 9th of 12 |
| Median household income | 35th of 219 | 2nd of 12 |
| Per capita income | 58th of 219 | 6th of 12 |
| Median home value | 52nd of 219 | 3rd of 12 |
| Median gross rent | 76th of 195 | 3rd of 10 |
| Bachelor's degree or higher | 73rd of 219 | 5th of 12 |
| Median age | 78th of 219 | 6th of 12 |
| Owner-occupied share | 20th of 219 | 1st of 12 |
The tracts next to it on DuPage County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 8465.24 | 32nd | $163,719±$21,385 · within the margin of this tract |
| Tract 8406 | 33rd | $161,600±$32,999 · within the margin of this tract |
| Tract 8413.27 | 34th | $160,446±$7,855 · within the margin of this tract |
| Tract 8457.02 | 35th | $159,899±$22,809 |
| Tract 8426.01 | 36th | $158,636±$35,581 · within the margin of this tract |
| Tract 8455.09 | 37th | $158,333±$39,003 · within the margin of this tract |
| Tract 8463.13 | 38th | $157,729±$35,472 · 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 8457.02?
3 of the 18 figures for Census Tract 8457.02 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