Counties in Idaho by gini index

Madison County had the highest gini index of 44 counties in 2022, at 51.8 index. Clark County had the lowest, at 33.1 index. The median was 43 index and the figure for Idaho was 44.4 index. Source: the U.S. Census Bureau.

Highest51.8Madison County
Lowest33.1Clark County
Median4344 counties
Idaho44.4History

All counties, 2022

CSVChart (SVG)

Madison CountyMadison County: 51.8 index51.8Adams CountyAdams County: 49.9 index49.9Lemhi CountyLemhi County: 49.5 index49.5Butte CountyButte County: 47.2 index47.2Valley CountyValley County: 46.5 index46.5Blaine CountyBlaine County: 46.5 index46.5Nez Perce CountyNez Perce County: 45.8 index45.8Latah CountyLatah County: 45.6 index45.6Bonner CountyBonner County: 45.4 index45.4Twin Falls CountyTwin Falls County: 45.1 index45.1Ada CountyAda County: 45 index45Gooding CountyGooding County: 45 index45Camas CountyCamas County: 44.8 index44.8Cassia CountyCassia County: 44.8 index44.8Washington CountyWashington County: 44.6 index44.6Lewis CountyLewis County: 44.3 index44.3Benewah CountyBenewah County: 43.8 index43.8Bonneville CountyBonneville County: 43.4 index43.4Gem CountyGem County: 43.2 index43.2Minidoka CountyMinidoka County: 43.2 index43.2Bannock CountyBannock County: 43.2 index43.2Idaho CountyIdaho County: 43 index43Bingham CountyBingham County: 42.9 index42.9Kootenai CountyKootenai County: 42.9 index42.9Jerome CountyJerome County: 42.7 index42.7Shoshone CountyShoshone County: 42.3 index42.3Clearwater CountyClearwater County: 42.3 index42.3Payette CountyPayette County: 41.9 index41.9Elmore CountyElmore County: 41.8 index41.8Teton CountyTeton County: 41.5 index41.5Bear Lake CountyBear Lake County: 41.5 index41.5Franklin CountyFranklin County: 41 index41Boundary CountyBoundary County: 40.9 index40.9Oneida CountyOneida County: 40.6 index40.6Caribou CountyCaribou County: 39.7 index39.7Lincoln CountyLincoln County: 39.5 index39.5Owyhee CountyOwyhee County: 39.3 index39.3Custer CountyCuster County: 39.3 index39.3Canyon CountyCanyon County: 39 index39Jefferson CountyJefferson County: 38.1 index38.1Boise CountyBoise County: 37.8 index37.8Fremont CountyFremont County: 37.6 index37.6Power CountyPower County: 37.2 index37.2Clark CountyClark County: 33.1 index33.1
index. Source: U.S. Census Bureau. Retrieved 2026-10-10.

Full ranking

RankCounties2022
index
Change on 2021
1Madison County51.8+2.7
2Adams County49.9+1.2
3Lemhi County49.5+2
4Butte County47.2+1.1
5Valley County46.5+2.9
6Blaine County46.5+0.2
7Nez Perce County45.8+0.5
8Latah County45.6-0.4
9Bonner County45.4+0.7
10Twin Falls County45.1+0.4
11Ada County45-0.4
11Gooding County45+2.4
13Camas County44.8-3.8
14Cassia County44.8+1.1
15Washington County44.6+0.1
16Lewis County44.3-1
17Benewah County43.8+0.9
18Bonneville County43.4-0.1
19Gem County43.2-0.4
20Minidoka County43.2-0.1
21Bannock County43.2+0.1
22Idaho County43-1.1
23Bingham County42.9+0.3
24Kootenai County42.9+0.5
25Jerome County42.7-0.7
26Shoshone County42.3-1
27Clearwater County42.3-0.2
28Payette County41.9+0.2
29Elmore County41.8+0.2
30Teton County41.5+2.6
31Bear Lake County41.5+0.1
32Franklin County41+0.6
33Boundary County40.9-6.8
34Oneida County40.6+2.4
35Caribou County39.7+2.6
36Lincoln County39.5-0.5
37Owyhee County39.3-3.3
38Custer County39.3-2.1
39Canyon County39-0.9
40Jefferson County38.1+0.3
41Boise County37.8-0.6
42Fremont County37.6+0.9
43Power County37.2+2.1
44Clark County33.1+1.2

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/2022/table-based-SF/data/5YRData/acsdt5y2022-b19083.dat. Retrieved 2026-10-10.

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Questions

Which county has the highest gini index?

Madison County, with 51.8 index in 2022, according to the U.S. Census Bureau.

Which county has the lowest gini index?

Clark County, with 33.1 index in 2022.

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 Idaho: more rankings