Counties in California by households with a broadband internet subscription
Santa Clara County had the highest households with a broadband internet subscription of 58 counties in 2021, at 94.1%. Sierra County had the lowest, at 73.7%. The median was 88.5% and the figure for California was 90.4%. Source: the U.S. Census Bureau.
Map of counties, 2021
- Under 83
- 83 to 86
- 86 to 88
- 88 to 91
- 91 to 92
- 92 and over
All counties, 2021
Full ranking
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/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat. Retrieved 2026-10-18.Citation styles
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, 2021) [Data set]. Retrieved October 18, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-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, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat. Invokely, https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2021. 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, 2021. Dataset. Accessed October 18, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat. Also distributed by Invokely, https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2021.
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, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat, via Invokely: https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2021 (Accessed: 18 October 2026).
BibTeX
@misc{census_counties_in_california_by_2021,
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, 2021}},
year = {2026},
howpublished = {Data set},
url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat},
urldate = {2026-10-18},
note = {Accessed via Invokely, https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2021. 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/2021/table-based-SF/data/5YRData/acsdt5y2021-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, 2021
PY - 2026
DA - 2026/01/29
PB - U.S. Census Bureau
DB - Invokely
UR - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat
L2 - https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2021
Y2 - 2026/10/18
N1 - Accessed via Invokely, https://invokely.ai/rankings/households-broadband-subscription/california-counties?period=2021.
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/2021/table-based-SF/data/5YRData/acsdt5y2021-b28002.dat. Retrieved 2026-10-18.
ER -
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in California by households with a broadband internet subscription using official data, and cite the source.
rank_places {"indicator":"households_broadband_subscription_share","level":"province","within":"California","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=households_broadband_subscription_share&level=province&within=California&limit=10Questions
Which county has the highest households with a broadband internet subscription?
Santa Clara County, with 94.1% in 2021, according to the U.S. Census Bureau.
Which county has the lowest households with a broadband internet subscription?
Sierra County, with 73.7% 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 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 Kansas
- Counties in Michigan
- Counties in West Virginia
- Cities in North Dakota
- Cities in Washington
- Cities in Wyoming
Counties in California: more rankings
- GDP per capita, US dollars
- Business revenue: retail trade (Economic Census)
- Business revenue: professional, scientific and technical services (Economic Census)
- Business revenue: other services (Economic Census)
- Establishment exit rate
- Business revenue: administrative support and waste management (Economic Census)
- Business revenue: utilities (Economic Census)
- Employer firms