Counties in Colorado by gini index

Pitkin County had the highest gini index of 64 counties in 2021, at 54.8 index. Lake County had the lowest, at 38 index. The median was 43.6 index and the figure for Colorado was 45.5 index. Source: the U.S. Census Bureau.

Highest54.8Pitkin County
Lowest38Lake County
Median43.664 counties
Colorado45.5History

Top 40 counties, 2021

CSVChart (SVG)

Pitkin CountyPitkin County: 54.8 index54.8San Miguel CountySan Miguel County: 53.7 index53.7Saguache CountySaguache County: 51.1 index51.1Sedgwick CountySedgwick County: 49.6 index49.6Phillips CountyPhillips County: 49.5 index49.5Eagle CountyEagle County: 49.3 index49.3Gilpin CountyGilpin County: 48.9 index48.9Costilla CountyCostilla County: 48.7 index48.7Baca CountyBaca County: 48.6 index48.6Denver CountyDenver County: 48.6 index48.6Boulder CountyBoulder County: 48.4 index48.4Kit Carson CountyKit Carson County: 47.9 index47.9Alamosa CountyAlamosa County: 47.9 index47.9Fremont CountyFremont County: 47.7 index47.7Delta CountyDelta County: 47.7 index47.7Las Animas CountyLas Animas County: 47.3 index47.3Lincoln CountyLincoln County: 47.1 index47.1San Juan CountySan Juan County: 46.4 index46.4Routt CountyRoutt County: 46.2 index46.2Pueblo CountyPueblo County: 46 index46Arapahoe CountyArapahoe County: 45.5 index45.5Larimer CountyLarimer County: 44.9 index44.9La Plata CountyLa Plata County: 44.8 index44.8Crowley CountyCrowley County: 44.8 index44.8Prowers CountyProwers County: 44.8 index44.8Jackson CountyJackson County: 44.7 index44.7Montrose CountyMontrose County: 44.7 index44.7Clear Creek CountyClear Creek County: 44.7 index44.7Rio Grande CountyRio Grande County: 44.3 index44.3Hinsdale CountyHinsdale County: 44 index44Mesa CountyMesa County: 44 index44Ouray CountyOuray County: 43.8 index43.8Archuleta CountyArchuleta County: 43.5 index43.5Conejos CountyConejos County: 43.4 index43.4Moffat CountyMoffat County: 43.4 index43.4Gunnison CountyGunnison County: 43.3 index43.3El Paso CountyEl Paso County: 43.2 index43.2Huerfano CountyHuerfano County: 43.1 index43.1Otero CountyOtero County: 42.9 index42.9Chaffee CountyChaffee County: 42.9 index42.9
index. Source: U.S. Census Bureau. Retrieved 2026-10-10.

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.

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Questions

Which county has the highest gini index?

Pitkin County, with 54.8 index in 2021, according to the U.S. Census Bureau.

Which county has the lowest gini index?

Lake County, with 38 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

Counties in Colorado: more rankings