Census tract · Warren County
Census Tract 8701, Warren County, Illinois
Census Tract 8701, GEOID 17187870100, in Warren County, Illinois, partly within Tompkins Township, Sumner Township, Warren County, Kirkwood, Hale Township, Little York, Spring Grove Township, Lenox Township, Monmouth Township and Ellison Township. 2,446 residents in the ACS 2020-2024 5-year estimates (±280); the 2020 Census counted 2,087.
Residents, 2020-2024
2,446
±280 (90% margin)
2020 Census count: 2,087
Median household income
$83,902
±$7,408 (90% margin)
Warren County: $67,385
Median home value
$99,800
±$13,374 (90% margin)
Warren County: $105,000
Median gross rent
$948
±$47 (90% margin)
Warren County: $788
Where is Census Tract 8701?
Census Tract 8701 is one of 5 census tracts in Warren County, Illinois. It covers 129.20 square miles of land, 16 residents per square mile in 2020. Its GEOID, 17187870100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Tompkins Township | 44% |
| Sumner Township, Warren County | 26% |
| Kirkwood | 21% |
| Hale Township | 15% |
| Little York | 8% |
| Spring Grove Township | 7% |
| Lenox Township | 4% |
| Monmouth Township | 3% |
| Ellison Township | 0% |
8 census tracts border Census Tract 8701: Tract 9733 in Henderson County ($60,705), Tract 9734 in Henderson County ($80,625), Tract 402 in Mercer County ($63,696), Tract 404 in Mercer County ($73,538), Tract 8702 ($70,568), Tract 8703 ($65,000), Tract 8704 ($61,225) and Tract 8705 ($63,345). 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 8701?
The 2020-2024 American Community Survey puts Census Tract 8701's population at 2,446 (±280) in 949 households; the 2020 Census counted 2,087 residents and 1,058 housing units.
| Measure | Tract 8701 | Warren County |
|---|---|---|
| Total population | 2,446 ±280 | 16,447 |
| Households | 949 ±99 | 6,787 |
| Average household size | 2.58 ±0.25 | 2.27 |
| Housing units | 1,163 ±120 | 7,587 |
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 8701?
The median resident of Census Tract 8701 is 36.5 years old; 26.2% are under 18 and 14.7% are 65 or older. The largest group is non-Hispanic white residents at 91.7%, then non-Hispanic residents of two or more races at 2.9%.
| Measure | Tract 8701 | Warren County |
|---|---|---|
| Median age | 36.5 ±4.2 | 38.5 |
| Under 18 years | 26.2% ±4.8 pts | 22.5% |
| 65 years and over | 14.7% ±2.9 pts | 20.0% |
| Hispanic or Latino (any race) | 2.6% ±1.9 pts | 11.1% |
| White alone, not Hispanic | 91.7% ±4.1 pts | 81.1% |
| Black or African American alone, not Hispanic | 1.9% ±2.4 pts | 2.7% |
| Asian alone, not Hispanic | 0.9% ±2.5 pts | 2.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.5 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.5 pts | 0.1% |
| Two or more races, not Hispanic | 2.9% ±1.5 pts | 2.1% |
| Some other race alone, not Hispanic | 0.0% ±1.5 pts | 0.3% |
| Born outside the United States | 2.0% ±2.3 pts | 6.5% |
| Speak a language other than English at home (age 5+) | 2.4% ±2.2 pts | 12.0% |
| Civilian veterans (age 18+) | 9.9% ±4.9 pts | 7.3% |
| With a disability | 15.2% ±4.5 pts | 13.8% |
| No health insurance coverage | 3.3% ±1.8 pts | 5.0% |
| High school graduate or higher (age 25+) | 91.9% ±2.6 pts | 87.1% |
| Bachelor's degree or higher (age 25+) | 26.3% ±5.4 pts | 22.0% |
| Graduate or professional degree (age 25+) | 6.8% ±2.4 pts | 7.9% |
| Lived in the same house a year earlier | 88.5% ±4.1 pts | 87.6% |
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 8701 earn?
Half of the 949 households in Census Tract 8701 earn less than $83,902 a year (±$7,408), against $67,385 across Warren County: 1st highest of the county's 5 tracts with a reliable estimate. 4.8% of residents live below the poverty line.
| Measure | Tract 8701 | Warren County |
|---|---|---|
| Median household income | $83,902 ±$7,408 | $67,385 |
| Mean household income | $95,749 ±$11,186 | $86,803 |
| Per capita income | $35,840 ±$4,292 | $35,164 |
| People below the poverty line | 4.8% ±2.5 pts | 14.6% |
| Children under 18 below the poverty line | 3.3% ±4.0 pts | 24.8% |
| Households receiving SNAP | 11.0% ±5.3 pts | 16.0% |
| Households with a computer | 95.2% ±3.6 pts | 93.0% |
| Households with a broadband subscription | 89.8% ±4.6 pts | 84.7% |
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 8701?
Owners occupy 82.8% of Census Tract 8701's occupied homes and renters 17.2%. The median owner-occupied home is valued at $99,800 by its owner (±$13,374). The median renter pays $948 a month including utilities, and 29.9% of renters pay 35% or more of their income on rent.
| Measure | Tract 8701 | Warren County |
|---|---|---|
| Median home value (owner-occupied) | $99,800 ±$13,374 | $105,000 |
| Median gross rent | $948 ±$47 | $788 |
| Renters paying 35% or more of income on rent | 29.9% ±18.9 pts | 26.5% |
| Median monthly owner costs, with a mortgage | $1,130 ±$89 | $1,059 |
| Owner-occupied homes | 82.8% ±5.5 pts | 75.2% |
| Renter-occupied homes | 17.2% ±5.5 pts | 24.8% |
| Housing units | 1,163 ±120 | 7,587 |
| Single-family detached homes | 92.9% ±4.2 pts | 87.3% |
| Mobile homes | 4.4% ±3.5 pts | 2.6% |
| Built 2020 or later | 0.2% ±0.3 pts | 0.5% |
| Built 2010 to 2019 | 1.2% ±1.5 pts | 1.6% |
| Built 1939 or earlier | 40.5% ±6.5 pts | 33.9% |
| Households with no vehicle | 0.6% ±0.6 pts | 6.9% |
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 8701 get to work?
82.8% of Census Tract 8701's workers drive alone and 10.3% work from home. The average trip to work takes 23.2 minutes.
| Measure | Tract 8701 | Warren County |
|---|---|---|
| In the labor force (age 16+) | 66.8% ±5.7 pts | 61.0% |
| Unemployment rate | 2.0% ±1.6 pts | 3.6% |
| Drove alone to work | 82.8% ±5.5 pts | 80.5% |
| Carpooled | 3.9% ±1.9 pts | 5.6% |
| Public transportation | 0.0% ±3.0 pts | 0.7% |
| Walked | 2.4% ±2.2 pts | 4.6% |
| Worked from home | 10.3% ±5.4 pts | 7.4% |
| Mean travel time to work | 23.2 min ±2.6 | 18.8 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 8701 compare with the other tracts in Warren County?
Among Warren County's tracts with a reliable estimate, Census Tract 8701 ranks as shown below (1 = highest).
| Measure | In Warren County |
|---|---|
| Population | 4th of 5 |
| Residents per square mile | 3rd of 5 |
| Median household income | 1st of 5 |
| Per capita income | 3rd of 5 |
| Median home value | 4th of 5 |
| Median gross rent | 1st of 5 |
| Poverty rate | 5th of 5 |
| Bachelor's degree or higher | 1st of 5 |
| Median age | 4th of 5 |
| Owner-occupied share | 1st of 5 |
The tracts next to it on Warren County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 8701 | 1st | $83,902±$7,408 |
| Tract 8702 | 2nd | $70,568±$12,485 · within the margin of this tract |
| Tract 8703 | 3rd | $65,000±$17,978 · within the margin of this tract |
| Tract 8705 | 4th | $63,345±$13,883 |
"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 8701?
3 of the 18 figures for Census Tract 8701 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