Counties in Illinois by gini index
Gallatin County had the highest gini index of 102 counties in 2021, at 52.9 index. Kendall County had the lowest, at 34.7 index. The median was 43.4 index and the figure for Illinois was 48.1 index. Source: the U.S. Census Bureau.
Top 40 counties, 2021
Full ranking
Other periods
About this ranking
Income inequality on a 0 to 100 scale, where 0 is perfect equality.
Eurostat, equivalised disposable income after social transfers (EU-SILC), for the EU and its countries. For other countries use gini_index_world_bank, which is measured on a different basis. For the United States, ACS five-year estimate B19083 measures inequality in household money income before taxes. Census publishes a coefficient from 0 to 1; Invokely multiplies it by 100. The displayed year is the final year of the five-year period. Negative household incomes are treated as zero. This differs from the EU-SILC measure based on equivalised disposable income and should not be treated as directly comparable.
Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.
How to cite
U.S. Census Bureau. American Community Survey 5-year estimates, table B19083: Gini index of household income inequality (coefficient multiplied by 100). https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b19083.dat. Retrieved 2026-10-10.Use this data in your AI agent
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Rank Counties in Illinois by gini index using official data, and cite the source.
rank_places {"indicator":"gini_index","level":"province","within":"Illinois","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=gini_index&level=province&within=Illinois&limit=10Questions
Which county has the highest gini index?
Gallatin County, with 52.9 index in 2021, according to the U.S. Census Bureau.
Which county has the lowest gini index?
Kendall County, with 34.7 index in 2021.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B19083: Gini index of household income inequality (coefficient multiplied by 100). Retrieved 2026-10-10.
Gini index: other rankings
- EU countries
- US states
- EU regions (NUTS 2)
- US counties
- Autonomous communities of Spain
- Provinces of Spain
- Municipalities of Spain
- Counties in Texas
- Counties in Georgia
- Counties in Virginia
- Counties in Kentucky
- Counties in Missouri
Counties in Illinois: more rankings
- Asian population share
- Bachelor's degree or higher, population 25 and over
- Live births, July to June
- Black or African American population share
- Housing units authorized by building permits
- Crude birth rate, July to June
- Crude death rate, July to June
- Deaths, July to June
- Foreign-born population share
- Real GDP growth
- GDP per capita, US dollars
- Gross domestic product (GDP), US dollars
- Hispanic or Latino population share
- Homeownership rate (US, housing units)
- County house price annual change, sales and refinances
- County house price index, 1990 = 100