Counties in South Dakota by gini index

Ziebach County had the highest gini index of 66 counties in 2023, at 53.8 index. Hanson County had the lowest, at 38.1 index. The median was 44.4 index and the figure for South Dakota was 44.7 index. Source: the U.S. Census Bureau.

Highest53.8Ziebach County
Lowest38.1Hanson County
Median44.466 counties
South Dakota44.7History

Top 40 counties, 2023

CSVChart (SVG)

Ziebach CountyZiebach County: 53.8 index53.8McPherson CountyMcPherson County: 51.8 index51.8Jackson CountyJackson County: 51.6 index51.6Jerauld CountyJerauld County: 51.3 index51.3Perkins CountyPerkins County: 50.3 index50.3Corson CountyCorson County: 50 index50Bennett CountyBennett County: 49.5 index49.5Faulk CountyFaulk County: 49.1 index49.1Buffalo CountyBuffalo County: 49 index49Todd CountyTodd County: 49 index49Oglala Lakota CountyOglala Lakota County: 48.4 index48.4Hand CountyHand County: 47.3 index47.3Edmunds CountyEdmunds County: 47 index47Clay CountyClay County: 46.7 index46.7Clark CountyClark County: 46.6 index46.6Pennington CountyPennington County: 46.6 index46.6Lawrence CountyLawrence County: 46.3 index46.3Union CountyUnion County: 46.2 index46.2Aurora CountyAurora County: 46.1 index46.1Sully CountySully County: 46 index46Marshall CountyMarshall County: 45.8 index45.8Campbell CountyCampbell County: 45.6 index45.6Lyman CountyLyman County: 45.4 index45.4Mellette CountyMellette County: 45.4 index45.4Lake CountyLake County: 45.4 index45.4Charles Mix CountyCharles Mix County: 45.2 index45.2Butte CountyButte County: 45.1 index45.1Fall River CountyFall River County: 44.9 index44.9Harding CountyHarding County: 44.9 index44.9Kingsbury CountyKingsbury County: 44.7 index44.7Beadle CountyBeadle County: 44.5 index44.5Stanley CountyStanley County: 44.5 index44.5Lincoln CountyLincoln County: 44.4 index44.4Walworth CountyWalworth County: 44.4 index44.4Grant CountyGrant County: 44.3 index44.3Day CountyDay County: 44.2 index44.2Custer CountyCuster County: 44.2 index44.2Haakon CountyHaakon County: 44 index44Codington CountyCodington County: 43.8 index43.8Brule CountyBrule County: 43.6 index43.6
index. Source: U.S. Census Bureau. Retrieved 2026-10-10.

Full ranking

RankCounties2023
index
Change on 2022
1Ziebach County53.8-1
2McPherson County51.8-3
3Jackson County51.6+0.4
4Jerauld County51.3-2
5Perkins County50.3+0.6
6Corson County50+0.9
7Bennett County49.5-2.6
8Faulk County49.1+3.8
9Buffalo County49+1.9
10Todd County49-1.4
11Oglala Lakota County48.4-2.5
12Hand County47.3+2.1
13Edmunds County47-0.2
14Clay County46.7-1
15Clark County46.6-3.5
15Pennington County46.6-0.1
17Lawrence County46.3-0.9
18Union County46.2-0.4
19Aurora County46.1+0.9
20Sully County46-0.4
21Marshall County45.8-0.9
22Campbell County45.6-1.2
23Lyman County45.4+1.1
23Mellette County45.4-0.5
25Lake County45.4-3
26Charles Mix County45.2+0.1
27Butte County45.1-2
28Fall River County44.9+0.7
29Harding County44.9+1.3
30Kingsbury County44.7-0.3
31Beadle County44.5+1
32Stanley County44.5+1.5
33Lincoln County44.4+2.3
34Walworth County44.4+1.2
35Grant County44.3-1.5
36Day County44.2-0.2
37Custer County44.2-0.4
38Haakon County44-4.5
39Codington County43.8+0.4
40Brule County43.6-0.5
41Dewey County43.6+0.3
42Brown County43.5+0.4
43Minnehaha County43.5+0.6
44Gregory County43.5-2.3
45Spink County43.4-2.4
46Davison County43.2-1.8
47Yankton County43.2+0.4
48Tripp County42.7+0.8
49Hutchinson County42.2-0.3
50Sanborn County42.1-3.6
51Turner County42-1.7
52Roberts County42-1.4
53Bon Homme County41.9-2.5
54Douglas County41.7-3.6
55Miner County41.6-1.5
56Brookings County41.2+0.7
57Moody County40.8-0.7
58Potter County40.3+1.3
59Jones County40.1+0.8
60Hamlin County40+3.6
61Meade County39.9+0.9
62Deuel County39.7+1.6
63Hughes County39.4+0.6
64McCook County39.2+1.1
65Hyde County38.6+1.9
66Hanson County38.1+3.1

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/2023/table-based-SF/data/5YRData/acsdt5y2023-b19083.dat. Retrieved 2026-10-10.

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Questions

Which county has the highest gini index?

Ziebach County, with 53.8 index in 2023, according to the U.S. Census Bureau.

Which county has the lowest gini index?

Hanson County, with 38.1 index in 2023.

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