Census tract · DuPage County
Census Tract 8465.21, DuPage County, Illinois
Census Tract 8465.21, GEOID 17043846521, in DuPage County, Illinois, entirely within Naperville Township. 4,971 residents in the ACS 2020-2024 5-year estimates (±549); the 2020 Census counted 5,036.
Residents, 2020-2024
4,971
±549 (90% margin)
2020 Census count: 5,036
Median household income
$155,222
±$16,648 (90% margin)
DuPage County: $112,096
Median home value
$573,700
±$26,966 (90% margin)
DuPage County: $391,400
Median gross rent
$2,372
±$227 (90% margin)
DuPage County: $1,688
Where is Census Tract 8465.21?
Census Tract 8465.21 is one of 219 census tracts in DuPage County, Illinois. It covers 1.28 square miles of land, 3,931 residents per square mile in 2020. Its GEOID, 17043846521, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Naperville Township | 100% |
| Naperville | 83% |
5 census tracts border Census Tract 8465.21: Tract 8465.04 ($113,326), Tract 8465.19 ($112,337), Tract 8465.22 ($140,417), Tract 8465.23 ($170,729) and Tract 8465.24 ($163,719). 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 8465.21?
The 2020-2024 American Community Survey puts Census Tract 8465.21's population at 4,971 (±549) in 1,868 households; the 2020 Census counted 5,036 residents and 2,151 housing units.
| Measure | Tract 8465.21 | Naperville Township |
|---|---|---|
| Total population | 4,971 ±549 | 105,406 |
| Households | 1,868 ±198 | 40,499 |
| Average household size | 2.65 ±0.18 | 2.57 |
| Housing units | 2,195 ±232 | 42,652 |
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 8465.21?
The median resident of Census Tract 8465.21 is 42.5 years old; 20.0% are under 18 and 19.5% are 65 or older. The largest group is non-Hispanic white residents at 73.0%, then Hispanic or Latino residents (of any race) at 9.0%. 14.6% of residents were born outside the United States.
| Measure | Tract 8465.21 | Naperville Township |
|---|---|---|
| Median age | 42.5 ±3.2 | 37.0 |
| Under 18 years | 20.0% ±3.4 pts | 24.6% |
| 65 years and over | 19.5% ±4.4 pts | 12.4% |
| Hispanic or Latino (any race) | 9.0% ±6.2 pts | 11.0% |
| White alone, not Hispanic | 73.0% ±8.5 pts | 50.8% |
| Black or African American alone, not Hispanic | 5.5% ±5.0 pts | 9.9% |
| Asian alone, not Hispanic | 8.9% ±4.3 pts | 23.9% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.8 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.8 pts | 0.0% |
| Two or more races, not Hispanic | 1.3% ±1.2 pts | 3.6% |
| Some other race alone, not Hispanic | 2.3% ±3.5 pts | 0.6% |
| Born outside the United States | 14.6% ±5.0 pts | 25.0% |
| Speak a language other than English at home (age 5+) | 17.5% ±5.8 pts | 30.4% |
| Civilian veterans (age 18+) | 3.8% ±1.6 pts | 2.7% |
| With a disability | 7.3% ±2.4 pts | 7.6% |
| No health insurance coverage | 1.9% ±1.5 pts | 2.9% |
| High school graduate or higher (age 25+) | 99.7% ±0.5 pts | 95.9% |
| Bachelor's degree or higher (age 25+) | 70.0% ±4.9 pts | 64.2% |
| Graduate or professional degree (age 25+) | 35.3% ±5.3 pts | 28.3% |
| Lived in the same house a year earlier | 86.2% ±5.8 pts | 84.9% |
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 8465.21 earn?
Half of the 1,868 households in Census Tract 8465.21 earn less than $155,222 a year (±$16,648), against $112,096 across DuPage County: 41st highest of the county's 219 tracts with a reliable estimate. 4.7% of residents live below the poverty line.
| Measure | Tract 8465.21 | Naperville Township |
|---|---|---|
| Median household income | $155,222 ±$16,648 | $120,026 |
| Mean household income | $193,354 ±$25,138 | $156,170 |
| Per capita income | $74,386 ±$11,278 | $61,131 |
| People below the poverty line | 4.7% ±2.5 pts | 6.6% |
| Children under 18 below the poverty line | 0.0% ±3.7 pts | 6.1% |
| Households receiving SNAP | 0.9% ±1.3 pts | 7.0% |
| Households with a computer | 99.4% ±1.0 pts | 98.4% |
| Households with a broadband subscription | 97.9% ±1.6 pts | 96.3% |
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 8465.21?
Owners occupy 72.6% of Census Tract 8465.21's occupied homes and renters 27.4%. The median owner-occupied home is valued at $573,700 by its owner (±$26,966). The median renter pays $2,372 a month including utilities, and 20.6% of renters pay 35% or more of their income on rent.
| Measure | Tract 8465.21 | Naperville Township |
|---|---|---|
| Median home value (owner-occupied) | $573,700 ±$26,966 | $402,200 |
| Median gross rent | $2,372 ±$227 | $1,922 |
| Renters paying 35% or more of income on rent | 20.6% ±11.6 pts | 35.2% |
| Median monthly owner costs, with a mortgage | $3,366 ±$362 | $2,472 |
| Owner-occupied homes | 72.6% ±6.5 pts | 62.1% |
| Renter-occupied homes | 27.4% ±6.5 pts | 37.9% |
| Housing units | 2,195 ±232 | 42,652 |
| Single-family detached homes | 54.9% ±6.1 pts | 44.6% |
| Mobile homes | 0.5% ±0.8 pts | 0.3% |
| Built 2020 or later | 0.0% ±1.7 pts | 1.1% |
| Built 2010 to 2019 | 2.5% ±1.7 pts | 7.3% |
| Built 1939 or earlier | 0.0% ±1.7 pts | 1.4% |
| Households with no vehicle | 2.8% ±2.2 pts | 5.1% |
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 8465.21 get to work?
55.1% of Census Tract 8465.21's workers drive alone and 24.6% work from home. The average trip to work takes 33.9 minutes. The unemployment rate in 2020-2024 averaged 6.0%.
| Measure | Tract 8465.21 | Naperville Township |
|---|---|---|
| In the labor force (age 16+) | 69.1% ±5.4 pts | 70.0% |
| Unemployment rate | 6.0% ±3.3 pts | 5.1% |
| Drove alone to work | 55.1% ±6.7 pts | 59.7% |
| Carpooled | 7.3% ±7.0 pts | 5.4% |
| Public transportation | 8.6% ±4.0 pts | 5.4% |
| Walked | 1.9% ±1.2 pts | 0.9% |
| Worked from home | 24.6% ±6.1 pts | 27.4% |
| Mean travel time to work | 33.9 min ±3.4 | 30.6 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 8465.21 compare with the other tracts in DuPage County?
Among DuPage County's tracts with a reliable estimate, Census Tract 8465.21 ranks as shown below (1 = highest).
| Measure | In DuPage County |
|---|---|
| Population | 50th of 219 |
| Residents per square mile | 100th of 219 |
| Median household income | 41st of 219 |
| Per capita income | 41st of 219 |
| Median home value | 29th of 219 |
| Median gross rent | 15th of 195 |
| Poverty rate | 76th of 112 |
| Bachelor's degree or higher | 41st of 219 |
| Median age | 75th of 219 |
| Owner-occupied share | 131st of 219 |
The tracts next to it on DuPage County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 8463.13 | 38th | $157,729±$35,472 · within the margin of this tract |
| Tract 8440.01 | 39th | $157,038±$29,771 · within the margin of this tract |
| Tract 8462.06 | 40th | $155,481±$18,157 · within the margin of this tract |
| Tract 8465.21 | 41st | $155,222±$16,648 |
| Tract 8413.21 | 42nd | $154,813±$16,155 · within the margin of this tract |
| Tract 8454.02 | 43rd | $154,638±$23,850 · within the margin of this tract |
| Tract 8458.08 | 44th | $153,750±$32,823 · 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 8465.21?
2 of the 18 figures for Census Tract 8465.21 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