Counties in California by gini index, 2024

San Francisco County had the highest gini index of 58 counties in 2024, at 52.2 index. Lassen County had the lowest, at 41.2 index. The median was 46.5 index and the figure for California was 48.9 index. Source: the U.S. Census Bureau.

Lowest41.2Lassen County
Median46.558 counties
California48.9History

All counties, 2024

CSVChart (SVG)

San Francisco CountySan Francisco County: 52.2 index52.2Marin CountyMarin County: 52.2 index52.2Tehama CountyTehama County: 50 index50Alpine CountyAlpine County: 50 index50Los Angeles CountyLos Angeles County: 49.8 index49.8San Mateo CountySan Mateo County: 49.7 index49.7Trinity CountyTrinity County: 49.5 index49.5Santa Barbara CountySanta Barbara County: 49.4 index49.4Napa CountyNapa County: 49.3 index49.3Plumas CountyPlumas County: 48.6 index48.6Nevada CountyNevada County: 48.5 index48.5Lake CountyLake County: 48.4 index48.4Yolo CountyYolo County: 48.3 index48.3Butte CountyButte County: 48.3 index48.3Santa Cruz CountySanta Cruz County: 48.3 index48.3Siskiyou CountySiskiyou County: 48.2 index48.2Mendocino CountyMendocino County: 48.1 index48.1Humboldt CountyHumboldt County: 48 index48Alameda CountyAlameda County: 47.7 index47.7Santa Clara CountySanta Clara County: 47.6 index47.6San Luis Obispo CountySan Luis Obispo County: 47.5 index47.5Fresno CountyFresno County: 47.4 index47.4Contra Costa CountyContra Costa County: 47.2 index47.2El Dorado CountyEl Dorado County: 47 index47Colusa CountyColusa County: 46.7 index46.7Imperial CountyImperial County: 46.6 index46.6Shasta CountyShasta County: 46.6 index46.6Orange CountyOrange County: 46.6 index46.6Merced CountyMerced County: 46.5 index46.5Monterey CountyMonterey County: 46.4 index46.4Sutter CountySutter County: 46.4 index46.4Sonoma CountySonoma County: 46.2 index46.2Madera CountyMadera County: 45.9 index45.9Kern CountyKern County: 45.8 index45.8San Diego CountySan Diego County: 45.8 index45.8Calaveras CountyCalaveras County: 45.8 index45.8Tuolumne CountyTuolumne County: 45.2 index45.2Ventura CountyVentura County: 45.1 index45.1Placer CountyPlacer County: 44.7 index44.7Modoc CountyModoc County: 44.7 index44.7Amador CountyAmador County: 44.6 index44.6Inyo CountyInyo County: 44.6 index44.6Yuba CountyYuba County: 44.5 index44.5Sacramento CountySacramento County: 44.4 index44.4Stanislaus CountyStanislaus County: 44.3 index44.3San Bernardino CountySan Bernardino County: 43.8 index43.8Riverside CountyRiverside County: 43.8 index43.8San Joaquin CountySan Joaquin County: 43.8 index43.8Tulare CountyTulare County: 43.6 index43.6Mariposa CountyMariposa County: 43.4 index43.4Glenn CountyGlenn County: 43.4 index43.4Sierra CountySierra County: 43.4 index43.4Del Norte CountyDel Norte County: 43.2 index43.2Solano CountySolano County: 42.9 index42.9Mono CountyMono County: 42.5 index42.5Kings CountyKings County: 42 index42San Benito CountySan Benito County: 41.4 index41.4Lassen CountyLassen County: 41.2 index41.2
index. Source: U.S. Census Bureau. Retrieved 2026-10-10.

Full ranking

RankCounties2024
index
Change on 2023
1San Francisco County52.2+0.4
2Marin County52.2-0.2
3Tehama County50-0.5
4Alpine County50-2.8
5Los Angeles County49.8+0.1
6San Mateo County49.7+0.1
7Trinity County49.5-0.9
8Santa Barbara County49.4+0.3
9Napa County49.3+0.9
10Plumas County48.6+2.2
11Nevada County48.5+0.5
12Lake County48.4-0.3
13Yolo County48.3-0.2
14Butte County48.3-0.1
15Santa Cruz County48.3+0.1
16Siskiyou County48.2+1.2
17Mendocino County48.1-0.1
18Humboldt County48-0.6
19Alameda County47.7+0.3
20Santa Clara County47.6+0.3
21San Luis Obispo County47.5+0.1
22Fresno County47.40
23Contra Costa County47.2+0.1
24El Dorado County47-0.3
25Colusa County46.7+1.2
26Imperial County46.6+0.4
27Shasta County46.6+0.2
28Orange County46.60
29Merced County46.5+0.2
30Monterey County46.4+0.1
31Sutter County46.4+1.3
32Sonoma County46.2+0.4
33Madera County45.9-0.6
34Kern County45.8-0.6
35San Diego County45.8-0.1
36Calaveras County45.8+1.5
37Tuolumne County45.2+0.8
38Ventura County45.1+0.1
39Placer County44.7+0.1
40Modoc County44.7-0.1
41Amador County44.60
41Inyo County44.6+0.7
43Yuba County44.5-0.5
44Sacramento County44.4-0.1
45Stanislaus County44.3+0.4
46San Bernardino County43.8-0
47Riverside County43.8-0.4
48San Joaquin County43.8-0.6
49Tulare County43.6-0.4
50Mariposa County43.4+0.1
51Glenn County43.4+3.4
52Sierra County43.4-7.5
53Del Norte County43.2+0.3
54Solano County42.9+0.6
55Mono County42.5-2.4
56Kings County42-0.1
57San Benito County41.4-0.5
58Lassen County41.2-0.9

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/2024/table-based-SF/data/5YRData/acsdt5y2024-b19083.dat. Retrieved 2026-10-10.

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Questions

Which county has the highest gini index?

San Francisco County, with 52.2 index in 2024, according to the U.S. Census Bureau.

Which county has the lowest gini index?

Lassen County, with 41.2 index in 2024.

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 California: more rankings