Census tract · Kane County
Census Tract 8505, Kane County, Illinois
Census Tract 8505, GEOID 17089850500, in Kane County, Illinois, entirely within Dundee Township. 4,135 residents in the ACS 2020-2024 5-year estimates (±503); the 2020 Census counted 3,954.
Residents, 2020-2024
4,135
±503 (90% margin)
2020 Census count: 3,954
Median household income
$100,534
±$10,754 (90% margin)
Kane County: $103,163
Median home value
$301,900
±$22,912 (90% margin)
Kane County: $327,000
Median gross rent
$1,668
±$198 (90% margin)
Kane County: $1,453
Where is Census Tract 8505?
Census Tract 8505 is one of 104 census tracts in Kane County, Illinois. It covers 4.85 square miles of land, 815 residents per square mile in 2020. Its GEOID, 17089850500, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Dundee Township | 100% |
| West Dundee | 59% |
| East Dundee | 19% |
| Elgin | 7% |
| Hoffman Estates | 1% |
7 census tracts border Census Tract 8505: Tract 8042.04 in Cook County ($157,750), Tract 8043.13 in Cook County ($130,869), Tract 8501.03 ($113,771), Tract 8504 ($71,434), Tract 8506 ($100,815), Tract 8508 ($87,247) and Tract 8510 ($72,115). 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 8505?
The 2020-2024 American Community Survey puts Census Tract 8505's population at 4,135 (±503) in 2,010 households; the 2020 Census counted 3,954 residents and 1,868 housing units.
| Measure | Tract 8505 | Dundee Township |
|---|---|---|
| Total population | 4,135 ±503 | 64,400 |
| Households | 2,010 ±290 | 22,308 |
| Average household size | 2.06 ±0.14 | 2.89 |
| Housing units | 2,070 ±283 | 22,885 |
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 8505?
The median resident of Census Tract 8505 is 35.7 years old; 14.4% are under 18 and 15.1% are 65 or older. The largest group is non-Hispanic white residents at 72.8%, then Hispanic or Latino residents (of any race) at 16.2%. 11.6% of residents were born outside the United States.
| Measure | Tract 8505 | Dundee Township |
|---|---|---|
| Median age | 35.7 ±2.7 | 36.2 |
| Under 18 years | 14.4% ±3.1 pts | 24.4% |
| 65 years and over | 15.1% ±2.4 pts | 12.5% |
| Hispanic or Latino (any race) | 16.2% ±5.3 pts | 41.1% |
| White alone, not Hispanic | 72.8% ±6.5 pts | 47.4% |
| Black or African American alone, not Hispanic | 3.8% ±3.4 pts | 4.0% |
| Asian alone, not Hispanic | 4.7% ±3.7 pts | 4.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.9 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.9 pts | 0.0% |
| Two or more races, not Hispanic | 1.8% ±1.3 pts | 3.2% |
| Some other race alone, not Hispanic | 0.6% ±0.7 pts | 0.1% |
| Born outside the United States | 11.6% ±3.8 pts | 22.7% |
| Speak a language other than English at home (age 5+) | 17.2% ±5.5 pts | 41.8% |
| Civilian veterans (age 18+) | 2.6% ±1.6 pts | 4.3% |
| With a disability | 8.0% ±2.9 pts | 9.4% |
| No health insurance coverage | 5.4% ±3.2 pts | 8.3% |
| High school graduate or higher (age 25+) | 94.5% ±2.7 pts | 85.1% |
| Bachelor's degree or higher (age 25+) | 44.4% ±7.8 pts | 33.5% |
| Graduate or professional degree (age 25+) | 15.0% ±4.4 pts | 11.8% |
| Lived in the same house a year earlier | 80.2% ±5.2 pts | 91.9% |
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 8505 earn?
Half of the 2,010 households in Census Tract 8505 earn less than $100,534 a year (±$10,754), against $103,163 across Kane County: 51st highest of the county's 104 tracts with a reliable estimate.
| Measure | Tract 8505 | Dundee Township |
|---|---|---|
| Median household income | $100,534 ±$10,754 | $98,089 |
| Mean household income | $123,912 ±$17,096 | $120,785 |
| Per capita income | $59,617 ±$6,774 | $42,038 |
| People below the poverty line | 4.5% ±4.2 pts | 7.9% |
| Children under 18 below the poverty line | 13.9% ±13.4 pts | 13.2% |
| Households receiving SNAP | 4.5% ±2.9 pts | 10.5% |
| Households with a computer | 98.1% ±1.4 pts | 96.5% |
| Households with a broadband subscription | 96.4% ±2.3 pts | 93.2% |
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 8505?
Owners occupy 48.1% of Census Tract 8505's occupied homes and renters 51.9%. The median owner-occupied home is valued at $301,900 by its owner (±$22,912). The median renter pays $1,668 a month including utilities, and 18.0% of renters pay 35% or more of their income on rent.
| Measure | Tract 8505 | Dundee Township |
|---|---|---|
| Median home value (owner-occupied) | $301,900 ±$22,912 | $278,000 |
| Median gross rent | $1,668 ±$198 | $1,537 |
| Renters paying 35% or more of income on rent | 18.0% ±9.0 pts | 32.9% |
| Median monthly owner costs, with a mortgage | $2,107 ±$215 | $2,067 |
| Owner-occupied homes | 48.1% ±7.1 pts | 72.2% |
| Renter-occupied homes | 51.9% ±7.1 pts | 27.8% |
| Housing units | 2,070 ±283 | 22,885 |
| Single-family detached homes | 45.7% ±6.4 pts | 67.1% |
| Mobile homes | 0.0% ±1.8 pts | 0.1% |
| Built 2020 or later | 11.8% ±4.7 pts | 1.3% |
| Built 2010 to 2019 | 8.1% ±2.9 pts | 5.5% |
| Built 1939 or earlier | 29.0% ±9.0 pts | 6.1% |
| Households with no vehicle | 2.2% ±2.1 pts | 3.7% |
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 8505 get to work?
75.5% of Census Tract 8505's workers drive alone and 15.3% work from home. The average trip to work takes 23.7 minutes.
| Measure | Tract 8505 | Dundee Township |
|---|---|---|
| In the labor force (age 16+) | 80.0% ±4.1 pts | 73.2% |
| Unemployment rate | 2.2% ±1.5 pts | 4.8% |
| Drove alone to work | 75.5% ±6.5 pts | 72.2% |
| Carpooled | 2.6% ±2.2 pts | 10.1% |
| Public transportation | 0.4% ±0.7 pts | 0.8% |
| Walked | 1.6% ±1.6 pts | 0.8% |
| Worked from home | 15.3% ±5.1 pts | 14.1% |
| Mean travel time to work | 23.7 min ±2.7 | 28.8 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 8505 compare with the other tracts in Kane County?
Among Kane County's tracts with a reliable estimate, Census Tract 8505 ranks as shown below (1 = highest).
| Measure | In Kane County |
|---|---|
| Population | 68th of 104 |
| Residents per square mile | 88th of 104 |
| Median household income | 51st of 104 |
| Per capita income | 27th of 104 |
| Median home value | 55th of 104 |
| Median gross rent | 30th of 91 |
| Bachelor's degree or higher | 40th of 102 |
| Median age | 69th of 104 |
| Owner-occupied share | 94th of 104 |
The tracts next to it on Kane County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 8540.01 | 48th | $103,657±$12,592 · within the margin of this tract |
| Tract 8520.01 | 49th | $102,909±$18,221 · within the margin of this tract |
| Tract 8506 | 50th | $100,815±$14,518 · within the margin of this tract |
| Tract 8505 | 51st | $100,534±$10,754 |
| Tract 8529.03 | 52nd | $98,848±$13,074 · within the margin of this tract |
| Tract 8519.04 | 53rd | $98,750±$47,102 · within the margin of this tract |
| Tract 8530.08 | 54th | $98,250±$41,241 · 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 8505?
3 of the 18 figures for Census Tract 8505 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