Counties in California by population speaking a language other than English at home, 2024

Imperial County had the highest population speaking a language other than English at home of 58 counties in 2024, at 75.3%. Trinity County had the lowest, at 6.5%. The median was 33.7% and the figure for California was 44.4%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest75.3Imperial County
Median33.758 counties
California44.4History

Map of counties, 2024

Alameda County: 47.2 %Alpine County: 15.9 %Amador County: 10.5 %Butte County: 16.6 %Calaveras County: 8.8 %Colusa County: 53.1 %Contra Costa County: 37.5 %Del Norte County: 12.7 %El Dorado County: 12.1 %Fresno County: 43.7 %Glenn County: 39.8 %Humboldt County: 11.1 %Imperial County: 75.3 %Inyo County: 19.3 %Kern County: 45.7 %Kings County: 42 %Lake County: 19.7 %Lassen County: 18.2 %Los Angeles County: 55.1 %Madera County: 45.7 %Marin County: 23.9 %Mariposa County: 10.7 %Mendocino County: 22.1 %Merced County: 52.7 %Modoc County: 14 %Mono County: 22.1 %Monterey County: 56.3 %Napa County: 34.2 %Nevada County: 9.1 %Orange County: 46.4 %Placer County: 16.6 %Plumas County: 8.2 %Riverside County: 42.4 %Sacramento County: 33.7 %San Benito County: 44.1 %San Bernardino County: 44.3 %San Diego County: 37.3 %San Francisco County: 43.6 %San Joaquin County: 43 %San Luis Obispo County: 17.5 %San Mateo County: 45.8 %Santa Barbara County: 40.5 %Santa Clara County: 55.2 %Santa Cruz County: 33.6 %Shasta County: 7.8 %Sierra County: 9.7 %Siskiyou County: 9.7 %Solano County: 31.5 %Sonoma County: 27 %Stanislaus County: 43 %Sutter County: 36.9 %Tehama County: 21.2 %Trinity County: 6.5 %Tulare County: 50.2 %Tuolumne County: 7.2 %Ventura County: 38.4 %Yolo County: 36.3 %Yuba County: 25.4 %
  • Under 11
  • 11 to 19
  • 19 to 34
  • 34 to 42
  • 42 to 46
  • 46 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Imperial County: 75.3 %Imperial County75.3Monterey County: 56.3 %Monterey County56.3Santa Clara County: 55.2 %Santa Clara County55.2Los Angeles County: 55.1 %Los Angeles County55.1Colusa County: 53.1 %Colusa County53.1Merced County: 52.7 %Merced County52.7Tulare County: 50.2 %Tulare County50.2Alameda County: 47.2 %Alameda County47.2Orange County: 46.4 %Orange County46.4San Mateo County: 45.8 %San Mateo County45.8Madera County: 45.7 %Madera County45.7Kern County: 45.7 %Kern County45.7San Bernardino County: 44.3 %San Bernardino County44.3San Benito County: 44.1 %San Benito County44.1Fresno County: 43.7 %Fresno County43.7San Francisco County: 43.6 %San Francisco County43.6San Joaquin County: 43 %San Joaquin County43Stanislaus County: 43 %Stanislaus County43Riverside County: 42.4 %Riverside County42.4Kings County: 42 %Kings County42Santa Barbara County: 40.5 %Santa Barbara County40.5Glenn County: 39.8 %Glenn County39.8Ventura County: 38.4 %Ventura County38.4Contra Costa County: 37.5 %Contra Costa County37.5San Diego County: 37.3 %San Diego County37.3Sutter County: 36.9 %Sutter County36.9Yolo County: 36.3 %Yolo County36.3Napa County: 34.2 %Napa County34.2Sacramento County: 33.7 %Sacramento County33.7Santa Cruz County: 33.6 %Santa Cruz County33.6Solano County: 31.5 %Solano County31.5Sonoma County: 27 %Sonoma County27Yuba County: 25.4 %Yuba County25.4Marin County: 23.9 %Marin County23.9Mendocino County: 22.1 %Mendocino County22.1Mono County: 22.1 %Mono County22.1Tehama County: 21.2 %Tehama County21.2Lake County: 19.7 %Lake County19.7Inyo County: 19.3 %Inyo County19.3Lassen County: 18.2 %Lassen County18.2San Luis Obispo County: 17.5 %San Luis Obispo County17.5Placer County: 16.6 %Placer County16.6Butte County: 16.6 %Butte County16.6Alpine County: 15.9 %Alpine County15.9Modoc County: 14 %Modoc County14Del Norte County: 12.7 %Del Norte County12.7El Dorado County: 12.1 %El Dorado County12.1Humboldt County: 11.1 %Humboldt County11.1Mariposa County: 10.7 %Mariposa County10.7Amador County: 10.5 %Amador County10.5Siskiyou County: 9.7 %Siskiyou County9.7Sierra County: 9.7 %Sierra County9.7Nevada County: 9.1 %Nevada County9.1Calaveras County: 8.8 %Calaveras County8.8Plumas County: 8.2 %Plumas County8.2Shasta County: 7.8 %Shasta County7.8Tuolumne County: 7.2 %Tuolumne County7.2Trinity County: 6.5 %Trinity County6.5Imperial County: 75.3 %Imperial County75.3Monterey County: 56.3 %Monterey County56.3Santa Clara County: 55.2 %Santa Clara County55.2Los Angeles County: 55.1 %Los Angeles County55.1Colusa County: 53.1 %Colusa County53.1Merced County: 52.7 %Merced County52.7Tulare County: 50.2 %Tulare County50.2Alameda County: 47.2 %Alameda County47.2Orange County: 46.4 %Orange County46.4San Mateo County: 45.8 %San Mateo County45.8Madera County: 45.7 %Madera County45.7Kern County: 45.7 %Kern County45.7San Bernardino County: 44.3 %San Bernardino County44.3San Benito County: 44.1 %San Benito County44.1Fresno County: 43.7 %Fresno County43.7San Francisco County: 43.6 %San Francisco County43.6San Joaquin County: 43 %San Joaquin County43Stanislaus County: 43 %Stanislaus County43Riverside County: 42.4 %Riverside County42.4Kings County: 42 %Kings County42Santa Barbara County: 40.5 %Santa Barbara County40.5Glenn County: 39.8 %Glenn County39.8Ventura County: 38.4 %Ventura County38.4Contra Costa County: 37.5 %Contra Costa County37.5San Diego County: 37.3 %San Diego County37.3Sutter County: 36.9 %Sutter County36.9Yolo County: 36.3 %Yolo County36.3Napa County: 34.2 %Napa County34.2Sacramento County: 33.7 %Sacramento County33.7Santa Cruz County: 33.6 %Santa Cruz County33.6Solano County: 31.5 %Solano County31.5Sonoma County: 27 %Sonoma County27Yuba County: 25.4 %Yuba County25.4Marin County: 23.9 %Marin County23.9Mendocino County: 22.1 %Mendocino County22.1Mono County: 22.1 %Mono County22.1Tehama County: 21.2 %Tehama County21.2Lake County: 19.7 %Lake County19.7Inyo County: 19.3 %Inyo County19.3Lassen County: 18.2 %Lassen County18.2San Luis Obispo County: 17.5 %San Luis Obispo County17.5Placer County: 16.6 %Placer County16.6Butte County: 16.6 %Butte County16.6Alpine County: 15.9 %Alpine County15.9Modoc County: 14 %Modoc County14Del Norte County: 12.7 %Del Norte County12.7El Dorado County: 12.1 %El Dorado County12.1Humboldt County: 11.1 %Humboldt County11.1Mariposa County: 10.7 %Mariposa County10.7Amador County: 10.5 %Amador County10.5Siskiyou County: 9.7 %Siskiyou County9.7Sierra County: 9.7 %Sierra County9.7Nevada County: 9.1 %Nevada County9.1Calaveras County: 8.8 %Calaveras County8.8Plumas County: 8.2 %Plumas County8.2Shasta County: 7.8 %Shasta County7.8Tuolumne County: 7.2 %Tuolumne County7.2Trinity County: 6.5 %Trinity County6.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Imperial County75.3+0.2 pts
2Monterey County56.3+0.9 pts
3Santa Clara County55.2+0.5 pts
4Los Angeles County55.1-0.1 pts
5Colusa County53.1+0.3 pts
6Merced County52.7-0.3 pts
7Tulare County50.2-0.1 pts
8Alameda County47.2+0.6 pts
9Orange County46.4+0.5 pts
10San Mateo County45.8+0.5 pts
11Madera County45.7-0.1 pts
12Kern County45.7+0.5 pts
13San Bernardino County44.3+0.7 pts
14San Benito County44.1+1.7 pts
15Fresno County43.7-0.2 pts
16San Francisco County43.6+0.2 pts
17San Joaquin County43+0.8 pts
17Stanislaus County43-0.1 pts
19Riverside County42.4+0.7 pts
20Kings County42-0.2 pts
21Santa Barbara County40.5+0.5 pts
22Glenn County39.8+1.9 pts
23Ventura County38.4-0 pts
24Contra Costa County37.5+0.5 pts
25San Diego County37.3+0.6 pts
26Sutter County36.9+0.5 pts
27Yolo County36.3+0.1 pts
28Napa County34.2+0.3 pts
29Sacramento County33.7+0.9 pts
30Santa Cruz County33.6+1 pts
31Solano County31.5+0.8 pts
32Sonoma County27+0.2 pts
33Yuba County25.4+0.9 pts
34Marin County23.9+0.8 pts
35Mendocino County22.1+0.6 pts
36Mono County22.1-0.1 pts
37Tehama County21.2+1.1 pts
38Lake County19.7+0.8 pts
39Inyo County19.3+3.8 pts
40Lassen County18.2+0.1 pts
41San Luis Obispo County17.5+0.3 pts
42Placer County16.6+0.4 pts
43Butte County16.60 pts
44Alpine County15.9+1.8 pts
45Modoc County14+2.3 pts
46Del Norte County12.7+0.4 pts
47El Dorado County12.1-0.1 pts
48Humboldt County11.1+0.3 pts
49Mariposa County10.7-0.1 pts
50Amador County10.5+0.6 pts
51Siskiyou County9.7-0 pts
52Sierra County9.7-2.5 pts
53Nevada County9.1+0.4 pts
54Calaveras County8.8-0.6 pts
55Plumas County8.2+2.7 pts
56Shasta County7.8+0.1 pts
57Tuolumne County7.2-0.5 pts
58Trinity County6.5-2.6 pts

Other periods

About this ranking

People aged 5 and over who speak a language other than English at home, as a percentage of all people aged 5 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Measures the language used at home, not English ability: most people in this group also speak English. Spanish speakers are shown separately in spanish_at_home_share.

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 C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-c16001.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs (Counties in California by population speaking a language other than English at home, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-c16001.dat

MLA 9

American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs, Counties in California by population speaking a language other than English at home, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-c16001.dat. Invokely, https://invokely.ai/rankings/language-other-than-english-at-home/california-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs. Counties in California by population speaking a language other than English at home, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-c16001.dat. Also distributed by Invokely, https://invokely.ai/rankings/language-other-than-english-at-home/california-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs, Counties in California by population speaking a language other than English at home, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-c16001.dat, via Invokely: https://invokely.ai/rankings/language-other-than-english-at-home/california-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_california_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs: Counties in California by population speaking a language other than English at home, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-c16001.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/language-other-than-english-at-home/california-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-c16001.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs: Counties in California by population speaking a language other than English at home, 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-c16001.dat
L2  - https://invokely.ai/rankings/language-other-than-english-at-home/california-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/language-other-than-english-at-home/california-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-c16001.dat. Retrieved 2026-10-12.
ER  - 
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Rank Counties in California by population speaking a language other than English at home using official data, and cite the source.
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Questions

Which county has the highest population speaking a language other than English at home?

Imperial County, with 75.3% in 2024, according to the U.S. Census Bureau.

Which county has the lowest population speaking a language other than English at home?

Trinity County, with 6.5% 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 C16001: people aged 5 and over who speak a language other than English at home, as a percentage of the population aged 5 and over, calculated with stored inputs. Retrieved 2026-10-12.

Population speaking a language other than English at home: other rankings

Counties in California: more rankings