Counties in California by households with a broadband internet subscription

Contra Costa County had the highest households with a broadband internet subscription of 58 counties in 2023, at 95.3%. Sierra County had the lowest, at 74.1%. The median was 90.9% and the figure for California was 92.5%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Lowest74.1Sierra County
Median90.958 counties
California92.5History

Map of counties, 2023

Alameda County: 93.5 %Alpine County: 86.9 %Amador County: 88 %Butte County: 90.7 %Calaveras County: 85.6 %Colusa County: 82.9 %Contra Costa County: 95.3 %Del Norte County: 90.3 %El Dorado County: 92.4 %Fresno County: 87.2 %Glenn County: 90.5 %Humboldt County: 90.5 %Imperial County: 88.2 %Inyo County: 82.7 %Kern County: 89.8 %Kings County: 87.8 %Lake County: 85 %Lassen County: 87.2 %Los Angeles County: 91.7 %Madera County: 90.1 %Marin County: 95.1 %Mariposa County: 84.2 %Mendocino County: 87.1 %Merced County: 88.1 %Modoc County: 82.7 %Mono County: 91.1 %Monterey County: 93.1 %Napa County: 93 %Nevada County: 91.8 %Orange County: 94.4 %Placer County: 93.6 %Plumas County: 83.5 %Riverside County: 92.7 %Sacramento County: 93.3 %San Benito County: 94.3 %San Bernardino County: 92.2 %San Diego County: 94.2 %San Francisco County: 92.3 %San Joaquin County: 91.3 %San Luis Obispo County: 92.4 %San Mateo County: 95.2 %Santa Barbara County: 92.1 %Santa Clara County: 95.1 %Santa Cruz County: 93.5 %Shasta County: 89.5 %Sierra County: 74.1 %Siskiyou County: 86.3 %Solano County: 93.2 %Sonoma County: 94 %Stanislaus County: 91 %Sutter County: 88.5 %Tehama County: 86.1 %Trinity County: 79.3 %Tulare County: 87.8 %Tuolumne County: 88.2 %Ventura County: 93.1 %Yolo County: 91.7 %Yuba County: 91.5 %
  • Under 86
  • 86 to 88
  • 88 to 91
  • 91 to 92
  • 92 to 94
  • 94 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Contra Costa County: 95.3 %Contra Costa County95.3San Mateo County: 95.2 %San Mateo County95.2Santa Clara County: 95.1 %Santa Clara County95.1Marin County: 95.1 %Marin County95.1Orange County: 94.4 %Orange County94.4San Benito County: 94.3 %San Benito County94.3San Diego County: 94.2 %San Diego County94.2Sonoma County: 94 %Sonoma County94Placer County: 93.6 %Placer County93.6Santa Cruz County: 93.5 %Santa Cruz County93.5Alameda County: 93.5 %Alameda County93.5Sacramento County: 93.3 %Sacramento County93.3Solano County: 93.2 %Solano County93.2Monterey County: 93.1 %Monterey County93.1Ventura County: 93.1 %Ventura County93.1Napa County: 93 %Napa County93Riverside County: 92.7 %Riverside County92.7San Luis Obispo County: 92.4 %San Luis Obispo County92.4El Dorado County: 92.4 %El Dorado County92.4San Francisco County: 92.3 %San Francisco County92.3San Bernardino County: 92.2 %San Bernardino County92.2Santa Barbara County: 92.1 %Santa Barbara County92.1Nevada County: 91.8 %Nevada County91.8Yolo County: 91.7 %Yolo County91.7Los Angeles County: 91.7 %Los Angeles County91.7Yuba County: 91.5 %Yuba County91.5San Joaquin County: 91.3 %San Joaquin County91.3Mono County: 91.1 %Mono County91.1Stanislaus County: 91 %Stanislaus County91Butte County: 90.7 %Butte County90.7Humboldt County: 90.5 %Humboldt County90.5Glenn County: 90.5 %Glenn County90.5Del Norte County: 90.3 %Del Norte County90.3Madera County: 90.1 %Madera County90.1Kern County: 89.8 %Kern County89.8Shasta County: 89.5 %Shasta County89.5Sutter County: 88.5 %Sutter County88.5Imperial County: 88.2 %Imperial County88.2Tuolumne County: 88.2 %Tuolumne County88.2Merced County: 88.1 %Merced County88.1Amador County: 88 %Amador County88Tulare County: 87.8 %Tulare County87.8Kings County: 87.8 %Kings County87.8Lassen County: 87.2 %Lassen County87.2Fresno County: 87.2 %Fresno County87.2Mendocino County: 87.1 %Mendocino County87.1Alpine County: 86.9 %Alpine County86.9Siskiyou County: 86.3 %Siskiyou County86.3Tehama County: 86.1 %Tehama County86.1Calaveras County: 85.6 %Calaveras County85.6Lake County: 85 %Lake County85Mariposa County: 84.2 %Mariposa County84.2Plumas County: 83.5 %Plumas County83.5Colusa County: 82.9 %Colusa County82.9Inyo County: 82.7 %Inyo County82.7Modoc County: 82.7 %Modoc County82.7Trinity County: 79.3 %Trinity County79.3Sierra County: 74.1 %Sierra County74.1Contra Costa County: 95.3 %Contra Costa County95.3San Mateo County: 95.2 %San Mateo County95.2Santa Clara County: 95.1 %Santa Clara County95.1Marin County: 95.1 %Marin County95.1Orange County: 94.4 %Orange County94.4San Benito County: 94.3 %San Benito County94.3San Diego County: 94.2 %San Diego County94.2Sonoma County: 94 %Sonoma County94Placer County: 93.6 %Placer County93.6Santa Cruz County: 93.5 %Santa Cruz County93.5Alameda County: 93.5 %Alameda County93.5Sacramento County: 93.3 %Sacramento County93.3Solano County: 93.2 %Solano County93.2Monterey County: 93.1 %Monterey County93.1Ventura County: 93.1 %Ventura County93.1Napa County: 93 %Napa County93Riverside County: 92.7 %Riverside County92.7San Luis Obispo County: 92.4 %San Luis Obispo County92.4El Dorado County: 92.4 %El Dorado County92.4San Francisco County: 92.3 %San Francisco County92.3San Bernardino County: 92.2 %San Bernardino County92.2Santa Barbara County: 92.1 %Santa Barbara County92.1Nevada County: 91.8 %Nevada County91.8Yolo County: 91.7 %Yolo County91.7Los Angeles County: 91.7 %Los Angeles County91.7Yuba County: 91.5 %Yuba County91.5San Joaquin County: 91.3 %San Joaquin County91.3Mono County: 91.1 %Mono County91.1Stanislaus County: 91 %Stanislaus County91Butte County: 90.7 %Butte County90.7Humboldt County: 90.5 %Humboldt County90.5Glenn County: 90.5 %Glenn County90.5Del Norte County: 90.3 %Del Norte County90.3Madera County: 90.1 %Madera County90.1Kern County: 89.8 %Kern County89.8Shasta County: 89.5 %Shasta County89.5Sutter County: 88.5 %Sutter County88.5Imperial County: 88.2 %Imperial County88.2Tuolumne County: 88.2 %Tuolumne County88.2Merced County: 88.1 %Merced County88.1Amador County: 88 %Amador County88Tulare County: 87.8 %Tulare County87.8Kings County: 87.8 %Kings County87.8Lassen County: 87.2 %Lassen County87.2Fresno County: 87.2 %Fresno County87.2Mendocino County: 87.1 %Mendocino County87.1Alpine County: 86.9 %Alpine County86.9Siskiyou County: 86.3 %Siskiyou County86.3Tehama County: 86.1 %Tehama County86.1Calaveras County: 85.6 %Calaveras County85.6Lake County: 85 %Lake County85Mariposa County: 84.2 %Mariposa County84.2Plumas County: 83.5 %Plumas County83.5Colusa County: 82.9 %Colusa County82.9Inyo County: 82.7 %Inyo County82.7Modoc County: 82.7 %Modoc County82.7Trinity County: 79.3 %Trinity County79.3Sierra County: 74.1 %Sierra County74.1
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-18.

Full ranking

RankCounties2023 (%)Change on 2022
1Contra Costa County95.3+0.6 pts
2San Mateo County95.2+0.8 pts
3Santa Clara County95.1+0.4 pts
4Marin County95.1+0.3 pts
5Orange County94.4+0.8 pts
6San Benito County94.3+1.2 pts
7San Diego County94.2+0.6 pts
8Sonoma County94+0.6 pts
9Placer County93.6+0.9 pts
10Santa Cruz County93.5+1 pts
11Alameda County93.5+0.7 pts
12Sacramento County93.3+0.7 pts
13Solano County93.2+0.3 pts
14Monterey County93.1+1.3 pts
15Ventura County93.1+1.2 pts
16Napa County93+0.4 pts
17Riverside County92.7+1 pts
18San Luis Obispo County92.4+1.1 pts
19El Dorado County92.4+0.6 pts
20San Francisco County92.3+0.7 pts
21San Bernardino County92.2+1.6 pts
22Santa Barbara County92.1+0.5 pts
23Nevada County91.8+1.5 pts
24Yolo County91.7+0.7 pts
25Los Angeles County91.7+1.5 pts
26Yuba County91.5+2.8 pts
27San Joaquin County91.3+1.6 pts
28Mono County91.1+1.4 pts
29Stanislaus County91+1.3 pts
30Butte County90.7+1 pts
31Humboldt County90.5+1.7 pts
32Glenn County90.5+4.6 pts
33Del Norte County90.3+0.7 pts
34Madera County90.1+1.1 pts
35Kern County89.8+1.8 pts
36Shasta County89.5+1 pts
37Sutter County88.5+1 pts
38Imperial County88.2+0.8 pts
38Tuolumne County88.2+1.7 pts
40Merced County88.1-1.1 pts
41Amador County88+2 pts
42Tulare County87.8+2.2 pts
43Kings County87.8+1.1 pts
44Lassen County87.2+1.4 pts
45Fresno County87.2+1.8 pts
46Mendocino County87.1+1.5 pts
47Alpine County86.9+1.4 pts
48Siskiyou County86.3+2.3 pts
49Tehama County86.1+2.9 pts
50Calaveras County85.6+0.1 pts
51Lake County85+1.5 pts
52Mariposa County84.2+0.7 pts
53Plumas County83.5-0.9 pts
54Colusa County82.9+2.6 pts
55Inyo County82.7+0.2 pts
56Modoc County82.7+3.4 pts
57Trinity County79.3+0.9 pts
58Sierra County74.1-3 pts

Other periods

About this ranking

Households with a broadband internet subscription of any type (cellular data plan, cable, fiber optic, DSL, satellite or other non-dial-up service), as a percentage of all households. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Counts a paid subscription, so households that only use free access (a library or public wifi) are not included. A cellular data plan alone counts as broadband. A separate series from households_internet_access_share, the Eurostat share of households with internet access at home.

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 B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b28002.dat. Retrieved 2026-10-18.

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 B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs (Counties in California by households with a broadband internet subscription, 2023) [Data set]. Retrieved October 18, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b28002.dat

MLA 9

American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs, Counties in California by households with a broadband internet subscription, 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b28002.dat. Invokely, https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2023. Accessed 18 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs. Counties in California by households with a broadband internet subscription, 2023. Dataset. Accessed October 18, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b28002.dat. Also distributed by Invokely, https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs, Counties in California by households with a broadband internet subscription, 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b28002.dat, via Invokely: https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2023 (Accessed: 18 October 2026).

BibTeX
@misc{census_counties_in_california_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs: Counties in California by households with a broadband internet subscription, 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b28002.dat},
  urldate = {2026-10-18},
  note = {Accessed via Invokely, https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b28002.dat. Retrieved 2026-10-18.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs: Counties in California by households with a broadband internet subscription, 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b28002.dat
L2  - https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2023
Y2  - 2026/10/18
N1  - Accessed via Invokely, https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b28002.dat. Retrieved 2026-10-18.
ER  - 
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Questions

Which county has the highest households with a broadband internet subscription?

Contra Costa County, with 95.3% in 2023, according to the U.S. Census Bureau.

Which county has the lowest households with a broadband internet subscription?

Sierra County, with 74.1% 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 B28002: households with a broadband subscription of any type as a percentage of all households, calculated with stored inputs. Retrieved 2026-10-18.

Households with a broadband internet subscription: other rankings

Counties in California: more rankings