Census tract · Madison County
Census Tract 4009.51, Madison County, Illinois
Census Tract 4009.51, GEOID 17119400951, in Madison County, Illinois, mostly within Granite City (85% of its census blocks). 5,026 residents in the ACS 2020-2024 5-year estimates (±571); the 2020 Census counted 5,001.
Residents, 2020-2024
5,026
±571 (90% margin)
2020 Census count: 5,001
Median household income
$62,148
±$14,388 (90% margin)
Madison County: $75,793
Median home value
$149,200
±$10,070 (90% margin)
Madison County: $173,000
Median gross rent
$622
±$63 (90% margin)
Madison County: $1,024
Where is Census Tract 4009.51?
Census Tract 4009.51 is one of 63 census tracts in Madison County, Illinois. It covers 1.99 square miles of land, 2,512 residents per square mile in 2020. Its GEOID, 17119400951, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Granite City | 85% |
| Nameoki Township | 62% |
| Granite City Township | 38% |
| Pontoon Beach | 2% |
6 census tracts border Census Tract 4009.51: Tract 4008.01 ($88,942), Tract 4008.02 ($59,265), Tract 4009.03 ($54,350), Tract 4009.04 ($55,179), Tract 4009.52 ($71,042) and Tract 4019.05 ($62,016). 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 4009.51?
The 2020-2024 American Community Survey puts Census Tract 4009.51's population at 5,026 (±571) in 2,256 households; the 2020 Census counted 5,001 residents and 2,207 housing units.
| Measure | Tract 4009.51 | Granite City |
|---|---|---|
| Total population | 5,026 ±571 | 26,549 |
| Households | 2,256 ±191 | 11,562 |
| Average household size | 2.14 ±0.19 | 2.27 |
| Housing units | 2,390 ±204 | 12,854 |
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 4009.51?
The median resident of Census Tract 4009.51 is 40.2 years old; 24.3% are under 18 and 28.0% are 65 or older. The largest group is non-Hispanic white residents at 80.5%, then non-Hispanic residents of two or more races at 9.6%.
| Measure | Tract 4009.51 | Granite City |
|---|---|---|
| Median age | 40.2 ±3.3 | 40.4 |
| Under 18 years | 24.3% ±5.0 pts | 22.0% |
| 65 years and over | 28.0% ±5.6 pts | 19.4% |
| Hispanic or Latino (any race) | 4.6% ±3.4 pts | 9.9% |
| White alone, not Hispanic | 80.5% ±8.3 pts | 72.6% |
| Black or African American alone, not Hispanic | 1.0% ±0.7 pts | 8.9% |
| Asian alone, not Hispanic | 4.3% ±4.0 pts | 1.3% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.7 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Two or more races, not Hispanic | 9.6% ±6.2 pts | 7.0% |
| Some other race alone, not Hispanic | 0.0% ±0.7 pts | 0.2% |
| Born outside the United States | 5.2% ±4.1 pts | 4.1% |
| Speak a language other than English at home (age 5+) | 6.0% ±4.5 pts | 8.5% |
| Civilian veterans (age 18+) | 6.0% ±2.7 pts | 9.2% |
| With a disability | 22.1% ±5.3 pts | 21.6% |
| No health insurance coverage | 6.5% ±3.5 pts | 6.7% |
| High school graduate or higher (age 25+) | 86.6% ±5.7 pts | 88.6% |
| Bachelor's degree or higher (age 25+) | 15.4% ±5.6 pts | 15.6% |
| Graduate or professional degree (age 25+) | 5.6% ±3.7 pts | 4.3% |
| Lived in the same house a year earlier | 91.7% ±5.0 pts | 88.4% |
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 4009.51 earn?
Half of the 2,256 households in Census Tract 4009.51 earn less than $62,148 a year (±$14,388), against $75,793 across Madison County: 43rd highest of the county's 63 tracts with a reliable estimate. 9.1% of residents live below the poverty line.
| Measure | Tract 4009.51 | Granite City |
|---|---|---|
| Median household income | $62,148 ±$14,388 | $59,205 |
| Mean household income | $83,148 ±$11,632 | $71,345 |
| Per capita income | $36,853 ±$4,934 | $31,559 |
| People below the poverty line | 9.1% ±3.7 pts | 14.8% |
| Children under 18 below the poverty line | 5.0% ±6.0 pts | 16.1% |
| Households receiving SNAP | 17.2% ±7.8 pts | 23.0% |
| Households with a computer | 89.7% ±6.4 pts | 91.3% |
| Households with a broadband subscription | 87.1% ±6.1 pts | 85.3% |
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 4009.51?
Owners occupy 70.5% of Census Tract 4009.51's occupied homes and renters 29.5%. The median owner-occupied home is valued at $149,200 by its owner (±$10,070). The median renter pays $622 a month including utilities, and 36.4% of renters pay 35% or more of their income on rent.
| Measure | Tract 4009.51 | Granite City |
|---|---|---|
| Median home value (owner-occupied) | $149,200 ±$10,070 | $104,300 |
| Median gross rent | $622 ±$63 | $834 |
| Renters paying 35% or more of income on rent | 36.4% ±17.4 pts | 36.8% |
| Median monthly owner costs, with a mortgage | $1,460 ±$154 | $1,177 |
| Owner-occupied homes | 70.5% ±6.8 pts | 72.6% |
| Renter-occupied homes | 29.5% ±6.8 pts | 27.4% |
| Housing units | 2,390 ±204 | 12,854 |
| Single-family detached homes | 70.8% ±6.7 pts | 81.5% |
| Mobile homes | 0.0% ±1.6 pts | 0.4% |
| Built 2020 or later | 1.0% ±1.2 pts | 0.2% |
| Built 2010 to 2019 | 3.4% ±2.6 pts | 2.2% |
| Built 1939 or earlier | 0.7% ±1.1 pts | 23.2% |
| Households with no vehicle | 5.2% ±4.6 pts | 9.3% |
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 4009.51 get to work?
86.7% of Census Tract 4009.51's workers drive alone and 6.5% work from home. The average trip to work takes 20.5 minutes.
| Measure | Tract 4009.51 | Granite City |
|---|---|---|
| In the labor force (age 16+) | 53.9% ±7.5 pts | 58.1% |
| Unemployment rate | 2.2% ±2.7 pts | 5.7% |
| Drove alone to work | 86.7% ±6.4 pts | 82.8% |
| Carpooled | 2.7% ±3.0 pts | 5.3% |
| Public transportation | 0.0% ±1.8 pts | 1.2% |
| Walked | 2.9% ±4.5 pts | 1.0% |
| Worked from home | 6.5% ±3.9 pts | 8.9% |
| Mean travel time to work | 20.5 min ±2.2 | 22.1 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 4009.51 compare with the other tracts in Madison County?
Among Madison County's tracts with a reliable estimate, Census Tract 4009.51 ranks as shown below (1 = highest).
| Measure | In Madison County | In Granite City |
|---|---|---|
| Population | 22nd of 63 | 2nd of 9 |
| Residents per square mile | 17th of 63 | 5th of 9 |
| Median household income | 43rd of 63 | 3rd of 9 |
| Per capita income | 35th of 63 | 3rd of 9 |
| Median home value | 33rd of 63 | 2nd of 9 |
| Median gross rent | 62nd of 62 | 9th of 9 |
| Poverty rate | 35th of 49 | 7th of 8 |
| Bachelor's degree or higher | 50th of 61 | 5th of 9 |
| Median age | 30th of 63 | 6th of 9 |
| Owner-occupied share | 40th of 63 | 6th of 9 |
The tracts next to it on Madison County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4034.04 | 40th | $64,525±$11,461 · within the margin of this tract |
| Tract 4022 | 41st | $63,730±$16,691 · within the margin of this tract |
| Tract 4015 | 42nd | $63,385±$13,915 · within the margin of this tract |
| Tract 4009.51 | 43rd | $62,148±$14,388 |
| Tract 4019.05 | 44th | $62,016±$4,128 · within the margin of this tract |
| Tract 4010 | 45th | $61,477±$6,753 · within the margin of this tract |
| Tract 4032 | 46th | $59,967±$12,702 · 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 4009.51?
3 of the 18 figures for Census Tract 4009.51 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