Counties in South Dakota by gini index

McPherson County had the highest gini index of 66 counties in 2021, at 54.6 index. Harding County had the lowest, at 31.8 index. The median was 44 index and the figure for South Dakota was 44.3 index. Source: the U.S. Census Bureau.

Highest54.6McPherson County
Lowest31.8Harding County
Median4466 counties
South Dakota44.3History

Top 40 counties, 2021

CSVChart (SVG)

McPherson CountyMcPherson County: 54.6 index54.6Ziebach CountyZiebach County: 54.4 index54.4Jerauld CountyJerauld County: 53.5 index53.5Oglala Lakota CountyOglala Lakota County: 53.3 index53.3Jackson CountyJackson County: 53 index53Corson CountyCorson County: 51.8 index51.8Todd CountyTodd County: 50.6 index50.6Lawrence CountyLawrence County: 49.2 index49.2Haakon CountyHaakon County: 48.6 index48.6Perkins CountyPerkins County: 47.9 index47.9Clark CountyClark County: 47.8 index47.8Bennett CountyBennett County: 47.7 index47.7Mellette CountyMellette County: 47.6 index47.6Clay CountyClay County: 47.5 index47.5Charles Mix CountyCharles Mix County: 46.3 index46.3Union CountyUnion County: 46.3 index46.3Pennington CountyPennington County: 46.1 index46.1Aurora CountyAurora County: 46 index46Spink CountySpink County: 45.9 index45.9Marshall CountyMarshall County: 45.7 index45.7Walworth CountyWalworth County: 45.5 index45.5Edmunds CountyEdmunds County: 45.4 index45.4Gregory CountyGregory County: 45.4 index45.4Lake CountyLake County: 45 index45Brule CountyBrule County: 44.8 index44.8Brown CountyBrown County: 44.6 index44.6Buffalo CountyBuffalo County: 44.5 index44.5Davison CountyDavison County: 44.5 index44.5Douglas CountyDouglas County: 44.4 index44.4Sully CountySully County: 44.4 index44.4Dewey CountyDewey County: 44.4 index44.4Kingsbury CountyKingsbury County: 44.3 index44.3Roberts CountyRoberts County: 44.1 index44.1Hand CountyHand County: 44 index44Grant CountyGrant County: 43.8 index43.8Codington CountyCodington County: 43.7 index43.7Bon Homme CountyBon Homme County: 43.6 index43.6Stanley CountyStanley County: 43.6 index43.6Hutchinson CountyHutchinson County: 43.4 index43.4Turner CountyTurner County: 43.3 index43.3
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?

McPherson County, with 54.6 index in 2021, according to the U.S. Census Bureau.

Which county has the lowest gini index?

Harding County, with 31.8 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 South Dakota: more rankings