Census tract · Cook County
Census Tract 306.04, Cook County, Illinois
Census Tract 306.04, GEOID 17031030604, in Cook County, Illinois, mostly within Chicago (89% of its census blocks). 3,109 residents in the ACS 2020-2024 5-year estimates (±351); the 2020 Census counted 3,737.
Residents, 2020-2024
3,109
±351 (90% margin)
2020 Census count: 3,737
Median household income
$51,688
±$13,629 (90% margin)
Cook County: $83,498
Median home value
$236,400
±$44,986 (90% margin)
Cook County: $324,500
Median gross rent
$1,416
±$179 (90% margin)
Cook County: $1,435
Where is Census Tract 306.04?
Census Tract 306.04 is one of 1,332 census tracts in Cook County, Illinois. It covers 0.08 square miles of land, 48,532 residents per square mile in 2020. Its GEOID, 17031030604, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Chicago | 89% |
4 census tracts border Census Tract 306.04: Tract 306.01 ($52,917), Tract 306.03 ($49,674), Tract 307.01 ($44,948) and Tract 307.06 ($52,167). 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 306.04?
The 2020-2024 American Community Survey puts Census Tract 306.04's population at 3,109 (±351) in 2,234 households; the 2020 Census counted 3,737 residents and 2,687 housing units.
| Measure | Tract 306.04 | Chicago |
|---|---|---|
| Total population | 3,109±351 | 2,711,226 |
| Households | 2,234±196 | 1,160,205 |
| Average household size | 1.39±0.12 | 2.29 |
| Housing units | 2,502±156 | 1,277,054 |
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 306.04?
The median resident of Census Tract 306.04 is 40.7 years old; 4.3% are under 18 and 23.5% are 65 or older. The largest group is non-Hispanic white residents at 52.3%, then non-Hispanic Asian residents at 17.8%. 29.9% of residents were born outside the United States.
| Measure | Tract 306.04 | Chicago |
|---|---|---|
| Median age | 40.7±5.3 | 35.8 |
| Under 18 years | 4.3%±1.9 pts | 19.4% |
| 65 years and over | 23.5%±5.7 pts | 13.8% |
| Hispanic or Latino (any race) | 7.7%±3.6 pts | 29.7% |
| White alone, not Hispanic | 52.3%±7.0 pts | 32.1% |
| Black or African American alone, not Hispanic | 14.4%±6.0 pts | 27.4% |
| Asian alone, not Hispanic | 17.8%±7.0 pts | 7.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.6%±0.9 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.9%±1.3 pts | 0.0% |
| Two or more races, not Hispanic | 4.7%±3.3 pts | 3.0% |
| Some other race alone, not Hispanic | 1.7%±1.7 pts | 0.4% |
| Born outside the United States | 29.9%±8.2 pts | 20.9% |
| Speak a language other than English at home (age 5+) | 38.5%±7.4 pts | 35.4% |
| Civilian veterans (age 18+) | 3.2%±2.2 pts | 2.8% |
| With a disability | 14.5%±5.2 pts | 12.1% |
| No health insurance coverage | 8.8%±5.4 pts | 9.8% |
| High school graduate or higher (age 25+) | 95.4%±4.4 pts | 87.2% |
| Bachelor's degree or higher (age 25+) | 60.1%±8.8 pts | 44.3% |
| Graduate or professional degree (age 25+) | 26.2%±6.6 pts | 19.0% |
| Lived in the same house a year earlier | 80.0%±6.3 pts | 86.0% |
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 306.04 earn?
Half of the 2,234 households in Census Tract 306.04 earn less than $51,688 a year (±$13,629), against $83,498 across Cook County: 1,053rd highest of the county's 1,258 tracts with a reliable estimate. 21.4% of residents live below the poverty line.
| Measure | Tract 306.04 | Chicago |
|---|---|---|
| Median household income | $51,688±$13,629 | $77,902 |
| Mean household income | $68,951±$11,784 | $116,016 |
| Per capita income | $49,365±$7,372 | $50,086 |
| People below the poverty line | 21.4%±7.6 pts | 16.8% |
| Children under 18 below the poverty line | 0.0%±24.2 pts | 23.6% |
| Households receiving SNAP | 13.9%±6.7 pts | 18.9% |
| Households with a computer | 93.5%±4.0 pts | 94.9% |
| Households with a broadband subscription | 87.2%±5.5 pts | 89.1% |
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 306.04?
Owners occupy 25.2% of Census Tract 306.04's occupied homes and renters 74.8%. The median owner-occupied home is valued at $236,400 by its owner (±$44,986). The median renter pays $1,416 a month including utilities, and 48.0% of renters pay 35% or more of their income on rent.
| Measure | Tract 306.04 | Chicago |
|---|---|---|
| Median home value (owner-occupied) | $236,400±$44,986 | $334,100 |
| Median gross rent | $1,416±$179 | $1,440 |
| Renters paying 35% or more of income on rent | 48.0%±13.5 pts | 39.3% |
| Median monthly owner costs, with a mortgage | $1,936±$232 | $2,339 |
| Owner-occupied homes | 25.2%±6.0 pts | 46.0% |
| Renter-occupied homes | 74.8%±6.0 pts | 54.0% |
| Housing units | 2,502±156 | 1,277,054 |
| Single-family detached homes | 4.7%±2.8 pts | 25.6% |
| Mobile homes | 0.0%±1.5 pts | 0.2% |
| Built 2020 or later | 0.0%±1.5 pts | 0.8% |
| Built 2010 to 2019 | 0.0%±1.5 pts | 5.5% |
| Built 1939 or earlier | 14.6%±6.3 pts | 38.8% |
| Households with no vehicle | 56.4%±8.5 pts | 26.6% |
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 306.04 get to work?
27.0% of Census Tract 306.04's workers drive alone and 28.5% work from home. The average trip to work takes 41.2 minutes.
| Measure | Tract 306.04 | Chicago |
|---|---|---|
| In the labor force (age 16+) | 69.2%±6.3 pts | 67.6% |
| Unemployment rate | 3.5%±3.9 pts | 8.0% |
| Drove alone to work | 27.0%±9.9 pts | 44.7% |
| Carpooled | 0.8%±1.7 pts | 7.3% |
| Public transportation | 40.3%±11.3 pts | 17.7% |
| Walked | 3.4%±2.6 pts | 5.8% |
| Worked from home | 28.5%±9.3 pts | 21.0% |
| Mean travel time to work | 41.2 min±6.7 | 33.1 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 306.04 compare with the other tracts in Cook County?
Among Cook County's tracts with a reliable estimate, Census Tract 306.04 ranks as shown below (1 = highest).
| Measure | In Cook County | In Chicago |
|---|---|---|
| Population | 850th of 1,328 | 394th of 789 |
| Residents per square mile | 31st of 1,331 | 31st of 792 |
| Median household income | 1,053rd of 1,258 | 555th of 725 |
| Per capita income | 475th of 1,325 | 272nd of 786 |
| Median home value | 938th of 1,279 | 552nd of 749 |
| Median gross rent | 601st of 1,254 | 323rd of 758 |
| Poverty rate | 292nd of 905 | 247th of 587 |
| Bachelor's degree or higher | 321st of 1,264 | 217th of 736 |
| Median age | 479th of 1,327 | 201st of 788 |
| Owner-occupied share | 1,190th of 1,300 | 659th of 762 |
The tracts next to it on Cook County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 1911 | 1,050th | $51,958±$10,374 · within the margin of this tract |
| Tract 6118 | 1,051st | $51,875±$12,830 · within the margin of this tract |
| Tract 6408 | 1,052nd | $51,833±$28,904 · within the margin of this tract |
| Tract 306.04 | 1,053rd | $51,688±$13,629 |
| Tract 8210.01 | 1,054th | $51,685±$16,844 · within the margin of this tract |
| Tract 8233.04 | 1,055th | $51,662±$10,028 · within the margin of this tract |
| Tract 1912 | 1,056th | $51,449±$9,496 · 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 306.04?
Every figure for Census Tract 306.04 on this page has a coefficient of variation under 40%, the Census Bureau's threshold for a usable estimate.
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