In Alameda County there is 1 residential Cable provider covering 97.75% of the county. The average home can get speeds up to 1,807 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all Cable internet providers in Alameda County, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Alameda County, CA please click below.
Alameda County, CA Availability Maps
Cable Internet Service Provider in Alameda County
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Alameda County are not shown.
Alameda County Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Alameda County is cable internet available?
Cable Internet Availability Key
Cable is available in 97.75% of Alameda County. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is XFINITY. Call one of the companies with service in Alameda County above to see who has service at your home.
How fast is cable internet in Alameda County?
The map below shows maximum cable internet speeds by area in Alameda County.
Cable Internet Speed Key
The average Alameda County home can get up to 1,807 Mbps on their cable internet plan. The fastest cable download speed in the county is 2,000 Mbps, which 74.18% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 23.58% of homes can only purchase plans up to 1,200 Mbps. See the internet provider details below for info about their speed and coverage in Alameda County.
Cable internet speeds tend to be faster in the northeast parts of Alameda County, and slower in the west areas of the county.
Is cable the fastest internet I can get in Alameda County?
The fastest internet for you may vary based on where in Alameda County you live. In general, fiber competes most often with cable in the county.
- Fiber is the fastest internet type for 63.22% of Alameda County homes.
- Cable is fastest for 35.08% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for 1.42% of Alameda County homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Alameda County, along with details on where in Alameda County and at what speeds.
XFINITY from Comcast Cable in Alameda County, CA
XFINITY cable coverage
About 97.75%, or 1,644,575 people, have XFINITY cable internet available to them in the county. The company covers the entire Alameda County area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of Alameda County.
XFINITY from Comcast cable download speeds
XFINITY is above average when comparing download speeds to all other internet providers in Alameda County. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout Alameda County. The fastest plan anyone in Alameda County can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the county-wide average maximum speed for Alameda County customers is up to 1,807 Mbps.
Show all download speeds
- 75.9% up to 2,000.0 Mbps
- 24.1% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Alameda County download speeds tend to be faster than than upload speeds for XFINITY cable. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the fastest compared to other Alameda County cable providers. XFINITY offers 4 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Alameda County is up to 2,000 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 266 Mbps.
Show all upload speeds
- 3.9% up to 2,000.0 Mbps
- 0.0% up to 1,000.0 Mbps
- 72.0% up to 250.0 Mbps
- 24.1% up to 35.0 Mbps
Alameda County Cable by Area
This information is most helpful to those looking for homes or considering moving to Alameda County or any of the areas nearby.
How does cable internet in Alameda County compare to the rest of California?
Cable internet speeds in Alameda County are much faster versus the average speeds in California: 0.00 Mbps in California versus 1,807 Mbps in the county. The state has similar cable availability compared to the county. Average cable coverage in California is 0.00% versus 97.75% in Alameda County.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Alameda County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does cable internet look like in other counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- San Francisco County, CA: more cable coverage, slower speeds
- Stanislaus County, CA: less cable coverage, slower speeds
- Mono County, CA: less cable coverage, slower speeds
- Iron County, UT: less cable coverage, slower speeds
- Rio Grande County, CO: less cable coverage, slower speeds
- Huerfano County, CO: less cable coverage, slower speeds
- Ford County, KS: less cable coverage, faster speeds
- Pratt County, KS: less cable coverage, faster speeds
- Kingman County, KS: less cable coverage, faster speeds
- Sedgwick County, KS: less cable coverage, faster speeds
Counties with Similar Populations
- Santa Clara County, CA: less cable coverage, faster speeds
- Riverside County, CA: less cable coverage, slower speeds
- San Bernardino County, CA: less cable coverage, slower speeds
- Pima County, AZ: less cable coverage, slower speeds
- Travis County, TX: less cable coverage, slower speeds
- Sacramento County, CA: less cable coverage, faster speeds
- Contra Costa County, CA: more cable coverage, faster speeds
- Clark County, NV: less cable coverage, faster speeds
- Broward County, FL: more cable coverage, slower speeds
- Honolulu County, HI: less cable coverage, slower speeds