Data / Rankings / Black or African American population share / Counties in California

Counties in California by black or African American population share

Solano County had the highest black or African American population share of 58 counties in 2021, at 13.2%. Mono County had the lowest, at 0%. The median was 1.9% and the figure for California was 5.4%. Source: the U.S. Census Bureau.

Highest13.2Solano County
Lowest0Mono County
Median1.958 counties
California5.4History

All counties, 2021

CSVChart (SVG)

Solano CountySolano County: 13.2 %13.2Alameda CountyAlameda County: 9.9 %9.9Sacramento CountySacramento County: 9.3 %9.3Lassen CountyLassen County: 8.3 %8.3Contra Costa CountyContra Costa County: 8.3 %8.3Los Angeles CountyLos Angeles County: 7.7 %7.7San Bernardino CountySan Bernardino County: 7.6 %7.6San Joaquin CountySan Joaquin County: 6.7 %6.7Riverside CountyRiverside County: 6.1 %6.1Kings CountyKings County: 6.1 %6.1Kern CountyKern County: 5.1 %5.1San Francisco CountySan Francisco County: 4.9 %4.9San Diego CountySan Diego County: 4.6 %4.6Fresno CountyFresno County: 4.2 %4.2Yuba CountyYuba County: 3.4 %3.4Del Norte CountyDel Norte County: 2.9 %2.9Madera CountyMadera County: 2.8 %2.8Stanislaus CountyStanislaus County: 2.8 %2.8Merced CountyMerced County: 2.7 %2.7Imperial CountyImperial County: 2.5 %2.5Santa Clara CountySanta Clara County: 2.3 %2.3Yolo CountyYolo County: 2.3 %2.3Amador CountyAmador County: 2.3 %2.3Monterey CountyMonterey County: 2.3 %2.3Lake CountyLake County: 2.3 %2.3San Mateo CountySan Mateo County: 2.2 %2.2Marin CountyMarin County: 2.1 %2.1Napa CountyNapa County: 2 %2Modoc CountyModoc County: 2 %2Butte CountyButte County: 1.8 %1.8Santa Barbara CountySanta Barbara County: 1.8 %1.8Sutter CountySutter County: 1.8 %1.8Tuolumne CountyTuolumne County: 1.7 %1.7Ventura CountyVentura County: 1.7 %1.7Siskiyou CountySiskiyou County: 1.7 %1.7Orange CountyOrange County: 1.6 %1.6Placer CountyPlacer County: 1.6 %1.6Plumas CountyPlumas County: 1.5 %1.5Sonoma CountySonoma County: 1.5 %1.5San Luis Obispo CountySan Luis Obispo County: 1.4 %1.4Colusa CountyColusa County: 1.4 %1.4Tulare CountyTulare County: 1.4 %1.4Shasta CountyShasta County: 1.1 %1.1Humboldt CountyHumboldt County: 1.1 %1.1Calaveras CountyCalaveras County: 1 %1San Benito CountySan Benito County: 0.9 %0.9Santa Cruz CountySanta Cruz County: 0.8 %0.8Mariposa CountyMariposa County: 0.8 %0.8El Dorado CountyEl Dorado County: 0.8 %0.8Tehama CountyTehama County: 0.8 %0.8Mendocino CountyMendocino County: 0.6 %0.6Alpine CountyAlpine County: 0.6 %0.6Trinity CountyTrinity County: 0.6 %0.6Glenn CountyGlenn County: 0.4 %0.4Inyo CountyInyo County: 0.4 %0.4Nevada CountyNevada County: 0.4 %0.4Sierra CountySierra County: 0.1 %0.1Mono CountyMono County: 0 %0
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2021 (%)
1Solano County13.2
2Alameda County9.9
3Sacramento County9.3
4Lassen County8.3
5Contra Costa County8.3
6Los Angeles County7.7
7San Bernardino County7.6
8San Joaquin County6.7
9Riverside County6.1
10Kings County6.1
11Kern County5.1
12San Francisco County4.9
13San Diego County4.6
14Fresno County4.2
15Yuba County3.4
16Del Norte County2.9
17Madera County2.8
17Stanislaus County2.8
19Merced County2.7
20Imperial County2.5
21Santa Clara County2.3
21Yolo County2.3
23Amador County2.3
24Monterey County2.3
25Lake County2.3
26San Mateo County2.2
27Marin County2.1
28Napa County2
29Modoc County2
30Butte County1.8
31Santa Barbara County1.8
31Sutter County1.8
33Tuolumne County1.7
34Ventura County1.7
35Siskiyou County1.7
36Orange County1.6
37Placer County1.6
38Plumas County1.5
39Sonoma County1.5
40San Luis Obispo County1.4
41Colusa County1.4
41Tulare County1.4
43Shasta County1.1
44Humboldt County1.1
45Calaveras County1
46San Benito County0.9
47Santa Cruz County0.8
48Mariposa County0.8
49El Dorado County0.8
49Tehama County0.8
51Mendocino County0.6
52Alpine County0.6
53Trinity County0.6
54Glenn County0.4
55Inyo County0.4
56Nevada County0.4
57Sierra County0.1
58Mono County0

Other periods

About this ranking

People who are not Hispanic or Latino and report Black or African American as their only race, as a percentage of the total population. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

US federal statistics ask about Hispanic origin and race separately, and Hispanic or Latino people can be of any race. The shares for White, Black and Asian count people who are not Hispanic and report that race alone, so the published shares do not add up to 100 (people of two or more races and other races are not shown). Calculated from counts in ACS table B03002, which are stored as inputs. EU and Spanish statistics do not collect race.

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 B03002: Black or African American alone, not Hispanic or Latino, as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b03002.dat. Retrieved 2026-10-09.

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Questions

Which county has the highest black or African American population share?

Solano County, with 13.2% in 2021, according to the U.S. Census Bureau.

Which county has the lowest black or African American population share?

Mono County, with 0% 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 B03002: Black or African American alone, not Hispanic or Latino, as a percentage of the total population, calculated with stored inputs. Retrieved 2026-10-09.

Black or African American population share: other rankings

Counties in California: more rankings