Census tract · Sangamon County
Census Tract 11, Sangamon County, Illinois
Census Tract 11, GEOID 17167001100, in Sangamon County, Illinois, entirely within Springfield. 2,437 residents in the ACS 2020-2024 5-year estimates (±578); the 2020 Census counted 2,358.
Residents, 2020-2024
2,437
±578 (90% margin)
2020 Census count: 2,358
Median household income
$68,684
±$20,835 (90% margin)
Sangamon County: $75,357
Median home value
$148,200
±$12,855 (90% margin)
Sangamon County: $176,300
Median gross rent
$990
±$148 (90% margin)
Sangamon County: $983
Where is Census Tract 11?
Census Tract 11 is one of 54 census tracts in Sangamon County, Illinois. It covers 0.76 square miles of land, 3,119 residents per square mile in 2020. Its GEOID, 17167001100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Springfield | 100% |
| Capital Township | 96% |
| Springfield Township | 4% |
5 census tracts border Census Tract 11: Tract 2.02 ($51,417), Tract 10.04 ($55,070), Tract 12 ($75,625), Tract 20.01 ($110,725) and Tract 21 ($96,207). 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 11?
The 2020-2024 American Community Survey puts Census Tract 11's population at 2,437 (±578) in 1,118 households; the 2020 Census counted 2,358 residents and 1,250 housing units.
| Measure | Tract 11 | Springfield |
|---|---|---|
| Total population | 2,437 ±578 | 113,330 |
| Households | 1,118 ±193 | 51,040 |
| Average household size | 2.04 ±0.28 | 2.15 |
| Housing units | 1,276 ±184 | 57,424 |
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 11?
The median resident of Census Tract 11 is 33.7 years old; 21.9% are under 18 and 21.1% are 65 or older. The largest group is non-Hispanic white residents at 79.6%, then non-Hispanic Black residents at 10.1%.
| Measure | Tract 11 | Springfield |
|---|---|---|
| Median age | 33.7 ±9.4 | 41.0 |
| Under 18 years | 21.9% ±6.0 pts | 20.8% |
| 65 years and over | 21.1% ±6.7 pts | 19.9% |
| Hispanic or Latino (any race) | 1.0% ±0.8 pts | 3.4% |
| White alone, not Hispanic | 79.6% ±8.9 pts | 69.3% |
| Black or African American alone, not Hispanic | 10.1% ±9.1 pts | 19.1% |
| Asian alone, not Hispanic | 0.7% ±0.8 pts | 3.0% |
| 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 | 0.0% |
| Two or more races, not Hispanic | 8.7% ±6.8 pts | 4.3% |
| Some other race alone, not Hispanic | 0.0% ±1.5 pts | 0.8% |
| Born outside the United States | 4.7% ±4.5 pts | 4.9% |
| Speak a language other than English at home (age 5+) | 4.0% ±4.8 pts | 6.1% |
| Civilian veterans (age 18+) | 4.4% ±2.6 pts | 6.5% |
| With a disability | 13.3% ±6.2 pts | 15.0% |
| No health insurance coverage | 7.5% ±4.7 pts | 4.1% |
| High school graduate or higher (age 25+) | 98.4% ±1.4 pts | 93.3% |
| Bachelor's degree or higher (age 25+) | 50.5% ±11.4 pts | 36.3% |
| Graduate or professional degree (age 25+) | 26.1% ±9.5 pts | 15.6% |
| Lived in the same house a year earlier | 81.1% ±13.2 pts | 87.3% |
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 11 earn?
Half of the 1,118 households in Census Tract 11 earn less than $68,684 a year (±$20,835), against $75,357 across Sangamon County: 30th highest of the county's 54 tracts with a reliable estimate.
| Measure | Tract 11 | Springfield |
|---|---|---|
| Median household income | $68,684 ±$20,835 | $66,064 |
| Mean household income | $92,897 ±$15,051 | $92,959 |
| Per capita income | $46,161 ±$7,565 | $42,670 |
| People below the poverty line | 15.3% ±10.4 pts | 16.8% |
| Children under 18 below the poverty line | 21.8% ±24.1 pts | 24.2% |
| Households receiving SNAP | 4.8% ±3.1 pts | 19.3% |
| Households with a computer | 92.3% ±6.0 pts | 94.6% |
| Households with a broadband subscription | 89.3% ±7.1 pts | 90.1% |
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 11?
Owners occupy 73.3% of Census Tract 11's occupied homes and renters 26.7%. The median owner-occupied home is valued at $148,200 by its owner (±$12,855). The median renter pays $990 a month including utilities, and 36.5% of renters pay 35% or more of their income on rent.
| Measure | Tract 11 | Springfield |
|---|---|---|
| Median home value (owner-occupied) | $148,200 ±$12,855 | $162,100 |
| Median gross rent | $990 ±$148 | $975 |
| Renters paying 35% or more of income on rent | 36.5% ±16.9 pts | 38.6% |
| Median monthly owner costs, with a mortgage | $1,253 ±$127 | $1,400 |
| Owner-occupied homes | 73.3% ±9.1 pts | 64.3% |
| Renter-occupied homes | 26.7% ±9.1 pts | 35.7% |
| Housing units | 1,276 ±184 | 57,424 |
| Single-family detached homes | 77.6% ±6.6 pts | 64.9% |
| Mobile homes | 0.0% ±2.9 pts | 3.4% |
| Built 2020 or later | 0.0% ±2.9 pts | 0.4% |
| Built 2010 to 2019 | 0.0% ±2.9 pts | 4.5% |
| Built 1939 or earlier | 45.1% ±10.2 pts | 17.7% |
| Households with no vehicle | 8.8% ±6.0 pts | 10.3% |
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 11 get to work?
69.8% of Census Tract 11's workers drive alone and 24.0% work from home. The average trip to work takes 17.3 minutes.
| Measure | Tract 11 | Springfield |
|---|---|---|
| In the labor force (age 16+) | 64.4% ±8.9 pts | 58.9% |
| Unemployment rate | 2.2% ±2.1 pts | 6.8% |
| Drove alone to work | 69.8% ±10.6 pts | 74.7% |
| Carpooled | 3.0% ±4.3 pts | 6.1% |
| Public transportation | 0.0% ±3.1 pts | 1.3% |
| Walked | 2.2% ±6.7 pts | 1.8% |
| Worked from home | 24.0% ±8.8 pts | 14.5% |
| Mean travel time to work | 17.3 min ±3.9 | 17.4 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 11 compare with the other tracts in Sangamon County?
Among Sangamon County's tracts with a reliable estimate, Census Tract 11 ranks as shown below (1 = highest).
| Measure | In Sangamon County | In Springfield |
|---|---|---|
| Population | 42nd of 54 | 28th of 39 |
| Residents per square mile | 15th of 54 | 14th of 39 |
| Median household income | 30th of 54 | 17th of 39 |
| Per capita income | 19th of 54 | 11th of 39 |
| Median home value | 27th of 53 | 14th of 38 |
| Median gross rent | 27th of 53 | 19th of 39 |
| Bachelor's degree or higher | 11th of 52 | 9th of 37 |
| Median age | 46th of 54 | 31st of 39 |
| Owner-occupied share | 27th of 53 | 14th of 38 |
The tracts next to it on Sangamon County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 12 | 27th | $75,625±$8,123 · within the margin of this tract |
| Tract 38.01 | 28th | $71,938±$15,808 · within the margin of this tract |
| Tract 22 | 29th | $68,750±$23,539 · within the margin of this tract |
| Tract 11 | 30th | $68,684±$20,835 |
| Tract 30 | 31st | $63,039±$6,218 · within the margin of this tract |
| Tract 27 | 32nd | $61,719±$12,647 · within the margin of this tract |
| Tract 1 | 33rd | $59,112±$14,831 · 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 11?
4 of the 18 figures for Census Tract 11 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