Census tract · Madison County
Census Tract 4012, Madison County, Illinois
Census Tract 4012, GEOID 17119401200, in Madison County, Illinois, entirely within Wood River Township. 2,070 residents in the ACS 2020-2024 5-year estimates (±292); the 2020 Census counted 1,853.
Residents, 2020-2024
2,070
±292 (90% margin)
2020 Census count: 1,853
Median household income
$71,250
±$20,479 (90% margin)
Madison County: $75,793
Median home value
$108,100
±$9,038 (90% margin)
Madison County: $173,000
Median gross rent
$928
±$83 (90% margin)
Madison County: $1,024
Where is Census Tract 4012?
Census Tract 4012 is one of 63 census tracts in Madison County, Illinois. It covers 2.37 square miles of land, 783 residents per square mile in 2020. Its GEOID, 17119401200, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Wood River Township | 100% |
| Wood River | 84% |
| East Alton | 9% |
5 census tracts border Census Tract 4012: Tract 4010 ($61,477), Tract 4011.01 ($52,566), Tract 4011.02 ($69,821), Tract 4013 ($48,299) and Tract 4024 ($39,531). 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 4012?
The 2020-2024 American Community Survey puts Census Tract 4012's population at 2,070 (±292) in 942 households; the 2020 Census counted 1,853 residents and 832 housing units.
| Measure | Tract 4012 | Wood River Township |
|---|---|---|
| Total population | 2,070 ±292 | 29,687 |
| Households | 942 ±132 | 13,000 |
| Average household size | 2.20 ±0.17 | 2.28 |
| Housing units | 984 ±136 | 14,185 |
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 4012?
The median resident of Census Tract 4012 is 44.4 years old; 17.5% are under 18 and 19.3% are 65 or older. The largest group is non-Hispanic white residents at 93.4%, then non-Hispanic residents of two or more races at 5.3%.
| Measure | Tract 4012 | Wood River Township |
|---|---|---|
| Median age | 44.4 ±6.9 | 40.5 |
| Under 18 years | 17.5% ±5.8 pts | 20.1% |
| 65 years and over | 19.3% ±7.6 pts | 18.1% |
| Hispanic or Latino (any race) | 0.6% ±1.0 pts | 2.5% |
| White alone, not Hispanic | 93.4% ±3.8 pts | 90.3% |
| Black or African American alone, not Hispanic | 0.7% ±0.7 pts | 2.4% |
| Asian alone, not Hispanic | 0.1% ±0.2 pts | 0.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.8 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.8 pts | 0.0% |
| Two or more races, not Hispanic | 5.3% ±3.5 pts | 4.5% |
| Some other race alone, not Hispanic | 0.0% ±1.8 pts | 0.0% |
| Born outside the United States | 0.0% ±1.8 pts | 0.9% |
| Speak a language other than English at home (age 5+) | 0.4% ±0.5 pts | 1.6% |
| Civilian veterans (age 18+) | 5.0% ±2.1 pts | 7.2% |
| With a disability | 20.7% ±8.0 pts | 17.4% |
| No health insurance coverage | 7.5% ±3.5 pts | 5.9% |
| High school graduate or higher (age 25+) | 95.2% ±4.0 pts | 92.0% |
| Bachelor's degree or higher (age 25+) | 18.3% ±7.0 pts | 19.3% |
| Graduate or professional degree (age 25+) | 7.8% ±5.1 pts | 6.5% |
| Lived in the same house a year earlier | 84.7% ±7.2 pts | 88.8% |
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 4012 earn?
Half of the 942 households in Census Tract 4012 earn less than $71,250 a year (±$20,479), against $75,793 across Madison County: 31st highest of the county's 63 tracts with a reliable estimate. 11.0% of residents live below the poverty line.
| Measure | Tract 4012 | Wood River Township |
|---|---|---|
| Median household income | $71,250 ±$20,479 | $62,083 |
| Mean household income | $88,202 ±$14,102 | $76,324 |
| Per capita income | $41,602 ±$6,939 | $33,973 |
| People below the poverty line | 11.0% ±5.2 pts | 14.2% |
| Children under 18 below the poverty line | 27.7% ±17.5 pts | 20.4% |
| Households receiving SNAP | 10.6% ±4.9 pts | 17.7% |
| Households with a computer | 93.7% ±5.0 pts | 93.2% |
| Households with a broadband subscription | 93.4% ±4.9 pts | 89.4% |
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 4012?
Owners occupy 73.7% of Census Tract 4012's occupied homes and renters 26.3%. The median owner-occupied home is valued at $108,100 by its owner (±$9,038). The median renter pays $928 a month including utilities, and 35.0% of renters pay 35% or more of their income on rent.
| Measure | Tract 4012 | Wood River Township |
|---|---|---|
| Median home value (owner-occupied) | $108,100 ±$9,038 | $117,300 |
| Median gross rent | $928 ±$83 | $922 |
| Renters paying 35% or more of income on rent | 35.0% ±20.2 pts | 38.0% |
| Median monthly owner costs, with a mortgage | $1,136 ±$40 | $1,195 |
| Owner-occupied homes | 73.7% ±9.5 pts | 74.8% |
| Renter-occupied homes | 26.3% ±9.5 pts | 25.2% |
| Housing units | 984 ±136 | 14,185 |
| Single-family detached homes | 95.3% ±2.6 pts | 86.3% |
| Mobile homes | 0.0% ±3.7 pts | 0.9% |
| Built 2020 or later | 0.0% ±3.7 pts | 0.1% |
| Built 2010 to 2019 | 0.8% ±1.2 pts | 3.9% |
| Built 1939 or earlier | 36.5% ±10.1 pts | 17.8% |
| Households with no vehicle | 0.0% ±3.9 pts | 6.0% |
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 4012 get to work?
86.0% of Census Tract 4012's workers drive alone. The average trip to work takes 33.5 minutes.
| Measure | Tract 4012 | Wood River Township |
|---|---|---|
| In the labor force (age 16+) | 60.6% ±9.0 pts | 61.9% |
| Unemployment rate | 0.7% ±0.9 pts | 3.9% |
| Drove alone to work | 86.0% ±10.1 pts | 78.9% |
| Carpooled | 10.7% ±9.8 pts | 7.7% |
| Public transportation | 0.0% ±3.6 pts | 0.5% |
| Walked | 0.0% ±3.6 pts | 1.2% |
| Worked from home | 3.3% ±2.5 pts | 10.2% |
| Mean travel time to work | 33.5 min ±10.2 | 22.8 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 4012 compare with the other tracts in Madison County?
Among Madison County's tracts with a reliable estimate, Census Tract 4012 ranks as shown below (1 = highest).
| Measure | In Madison County |
|---|---|
| Population | 56th of 63 |
| Residents per square mile | 39th of 63 |
| Median household income | 31st of 63 |
| Per capita income | 24th of 63 |
| Median home value | 45th of 63 |
| Median gross rent | 44th of 62 |
| Poverty rate | 28th of 49 |
| Bachelor's degree or higher | 43rd of 61 |
| Median age | 16th of 63 |
| Owner-occupied share | 31st of 63 |
The tracts next to it on Madison County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4018 | 28th | $72,391±$20,038 · within the margin of this tract |
| Tract 4029 | 29th | $72,039±$8,748 · within the margin of this tract |
| Tract 4017.22 | 30th | $71,528±$9,823 · within the margin of this tract |
| Tract 4012 | 31st | $71,250±$20,479 |
| Tract 4009.52 | 32nd | $71,042±$17,974 · within the margin of this tract |
| Tract 4011.02 | 33rd | $69,821±$13,480 · within the margin of this tract |
| Tract 4027.01 | 34th | $69,044±$22,402 · 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 4012?
4 of the 18 figures for Census Tract 4012 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