In San Mateo County there are 12 residential internet providers covering 100.00% of the county. The average home can get speeds up to 1,266 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.
12 Internet Service Providers in San Mateo County
To avoid wasting your time, providers with less than 1% coverage in San Mateo County are not shown.
San Mateo 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.
HughesNet Satellite Internet
Where in San Mateo County is internet available?
Internet Availability Key
Internet service is available in 100.00% of San Mateo County. Areas in green are more likely to have fiber, cable, DSL, or fixed wireless internet service. Areas in red may be more reliant on satellite service. The most widely available provider is Etheric Networks. Call one of the companies with service in San Mateo County above to see who has service at your home, or click the technology to see where it can be found in San Mateo County.
How fast are internet speeds in San Mateo County?
The map below shows maximum internet speeds by area in San Mateo County.
Internet Speed Key
The average San Mateo County home can get up to 1,266 Mbps on their internet plan. For most people, the fastest download speed in the county is 10,000 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, less than 1% of homes can only purchase plans up to 80 Mbps. See the internet provider details below for info about their speed and coverage in San Mateo County.
Internet speeds tend to be faster in the north parts of San Mateo County, and slower in the southwest areas of the county.
What type of internet should I choose in San Mateo County?
The fastest internet for you may vary based on where in San Mateo County you live. If speed is your main concern, fiber will be the fastest internet in the county.
- Fiber is the fastest internet type for 66.26% of San Mateo County homes.
- Cable is fastest for 32.73% 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 less than 1% of San Mateo County homes.
Internet Market Health in San Mateo County
Internet Competition Key
The map shows how competitive the San Mateo County internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in San Mateo County based on what connections the average home has availabile:
- Average number of internet service providers to a home: 5.0 (very healthy)
- Average types of service (fiber, cable, DSL, etc): 3.6 (very healthy)
- Average providers with broadband (25 Mbps+) speeds: 4.6 (very healthy)
Overall, competition is very healthy.
San Mateo County internet customers have the ability to buy internet service from 1 to 10 different providers, depending on where they live. For different types of service, San Mateo County homes have between 1 and 4 options. The type(s) of service available are fixed wireless, cable, dsl, and fiber, though these may vary depending on the region within the county.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. San Mateo County internet customers who want faster speeds have between 1 and 9 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, San Mateo County is doing quite well.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in San Mateo County, along with details on where in San Mateo County and at what speeds.
AT&T DSL in San Mateo County, CA
AT&T DSL coverage
About 95.28%, or 684,526 people, have AT&T DSL internet available to them in the county. The company covers the entire San Mateo County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of San Mateo County.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other DSL providers in the area, AT&T DSL is below average. There are 12 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 0.77 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 69 Mbps.
Show all download speeds
- 49.2% up to 100.0 Mbps
- 10.3% up to 75.0 Mbps
- 17.1% up to 50.0 Mbps
- 6.4% up to 25.0 Mbps
- 4.5% up to 18.0 Mbps
- 2.0% up to 12.0 Mbps
- 0.8% up to 10.0 Mbps
- 5.5% up to 6.0 Mbps
- 0.4% up to 5.0 Mbps
- 2.1% up to 3.0 Mbps
- 0.9% up to 1.5 Mbps
- 0.9% up to 0.8 Mbps
AT&T DSL upload speeds
In San Mateo County download speeds tend to be than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and the fastest compared to other San Mateo County DSL providers. AT&T offers 9 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 San Mateo County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 0.26 Mbps. On average, AT&T customers can get speeds up to 14 Mbps.
Show all upload speeds
- 59.5% up to 20.0 Mbps
- 17.1% up to 10.0 Mbps
- 6.0% up to 5.0 Mbps
- 0.4% up to 2.0 Mbps
- 6.5% up to 1.5 Mbps
- 6.4% up to 1.0 Mbps
- 2.4% up to 0.5 Mbps
- 1.4% up to 0.4 Mbps
- 0.3% up to 0.3 Mbps
XFINITY from Comcast Cable in San Mateo County, CA
XFINITY cable coverage
About 93.66%, or 672,869 people, have XFINITY cable internet available to them in the county. The company covers the entire San Mateo County area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of San Mateo County.
XFINITY from Comcast cable download speeds
XFINITY is above average when comparing download speeds to all other internet providers in San Mateo County. Versus other cable providers in the area, XFINITY cable is the fastest. There are no different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from XFINITY goes up to 1,000 Mbps, and all San Mateo County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
XFINITY from Comcast cable upload speeds
In San Mateo County download speeds tend to be 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 San Mateo County cable providers. XFINITY offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in San Mateo County is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
AT&T Fiber in San Mateo County, CA
AT&T fiber coverage
About 56.78%, or 407,914 people, have AT&T fiber internet available to them in the county. The company covers the entire San Mateo County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of San Mateo County.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in San Mateo County. Versus other fiber providers in the area, AT&T fiber is one of the slowest. There are no different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from AT&T goes up to 1,000 Mbps, and all San Mateo County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
AT&T fiber upload speeds
In San Mateo County download speeds tend to be than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is above average where upload speeds are concerned, and one of the slowest compared to other San Mateo County fiber providers. AT&T offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in San Mateo County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Astound Broadband powered by Wave Broadband Cable in San Mateo County, CA
Astound Broadband cable coverage
About 39.83%, or 286,138 people, have Astound Broadband cable internet available to them in the county. The company covers the northwest, central, southeast, north, east, south, and southwest San Mateo County area. Astound Broadband is a large internet service provider internet service providers in the US, with internet service available in some of San Mateo County.
Astound Broadband powered by Wave Broadband cable download speeds
Astound Broadband is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other cable providers in the area, Astound Broadband cable is above average. There are 2 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Astound Broadband goes up to 1,000 Mbps, the slowest package only goes up to 250 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 685 Mbps.
Show all download speeds
- 58.0% up to 1,000.0 Mbps
- 42.0% up to 250.0 Mbps
Astound Broadband powered by Wave Broadband cable upload speeds
In San Mateo County download speeds tend to be than upload speeds for Astound Broadband cable. Compared to other ISPs, Astound Broadband is below average where upload speeds are concerned, and below average compared to other San Mateo County cable providers. Astound Broadband offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in San Mateo County is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
Raw Bandwidth Communications DSL in San Mateo County, CA
Raw Bandwidth Communications DSL coverage
About 28.35%, or 203,681 people, have Raw Bandwidth Communications DSL internet available to them in the county. The company covers the northwest, central, north, and west San Mateo County area. Raw Bandwidth Communications is a large internet service provider internet service providers in the US, with internet service available in a small portion of San Mateo County.
Raw Bandwidth Communications DSL download speeds
Raw Bandwidth Communications is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other DSL providers in the area, Raw Bandwidth Communications DSL is below average. There are 6 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Raw Bandwidth Communications goes up to 100 Mbps, the slowest package only goes up to 6.0 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 27 Mbps.
Show all download speeds
- 11.4% up to 100.0 Mbps
- 5.1% up to 40.0 Mbps
- 23.4% up to 24.0 Mbps
- 1.2% up to 20.0 Mbps
- 49.3% up to 15.0 Mbps
- 9.6% up to 6.0 Mbps
Raw Bandwidth Communications DSL upload speeds
In San Mateo County download speeds tend to be than upload speeds for Raw Bandwidth Communications DSL. Compared to other ISPs, Raw Bandwidth Communications is below average where upload speeds are concerned, and below average compared to other San Mateo County DSL providers. Raw Bandwidth Communications offers 5 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 San Mateo County is up to 10 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Raw Bandwidth Communications customers can get speeds up to 2.6 Mbps.
Show all upload speeds
- 11.4% up to 10.0 Mbps
- 6.3% up to 3.0 Mbps
- 26.7% up to 2.0 Mbps
- 46.0% up to 1.5 Mbps
- 9.6% up to 1.0 Mbps
sonic Fiber in San Mateo County, CA
sonic fiber coverage
About 25.26%, or 181,486 people, have sonic fiber internet available to them in the county. The company covers the central, northwest, southeast, north, east, and south San Mateo County area. sonic is a large internet service provider internet service providers in the US, with internet service available in a small portion of San Mateo County.
sonic fiber download speeds
sonic is above average when comparing download speeds to all other internet providers in San Mateo County. Versus other fiber providers in the area, sonic fiber is above average. There are no different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from sonic goes up to 2,000 Mbps, and all San Mateo County customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
sonic fiber upload speeds
In San Mateo County download speeds tend to be than upload speeds for sonic fiber. Compared to other ISPs, sonic is above average where upload speeds are concerned, and one of the slowest compared to other San Mateo County fiber providers. sonic offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in San Mateo County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
sonic DSL in San Mateo County, CA
sonic DSL coverage
About 13.44%, or 96,592 people, have sonic DSL internet available to them in the county. The company covers the entire San Mateo County area. sonic is a large internet service provider internet service providers in the US, with internet service available in a very small piece of San Mateo County.
sonic DSL download speeds
sonic is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other DSL providers in the area, sonic DSL is below average. There are 3 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from sonic goes up to 80 Mbps, the slowest package only goes up to 12 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 49 Mbps.
Show all download speeds
- 23.0% up to 80.0 Mbps
- 76.1% up to 40.0 Mbps
- 0.9% up to 12.0 Mbps
sonic DSL upload speeds
In San Mateo County download speeds tend to be than upload speeds for sonic DSL. Compared to other ISPs, sonic is below average where upload speeds are concerned, and above average compared to other San Mateo County DSL providers. sonic offers 2 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 San Mateo County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 12 Mbps. On average, sonic customers can get speeds up to 14 Mbps.
Show all upload speeds
- 23.0% up to 20.0 Mbps
- 77.0% up to 12.0 Mbps
San Bruno CityNet Services Cable in San Mateo County, CA
San Bruno CityNet Services cable coverage
About 5.33%, or 38,266 people, have San Bruno CityNet Services cable internet available to them in the county. The company covers the northwest San Mateo County area. San Bruno CityNet Services is a large internet service provider internet service providers in the US, with internet service available in a very small piece of San Mateo County.
San Bruno CityNet Services cable download speeds
San Bruno CityNet Services is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other cable providers in the area, San Bruno CityNet Services cable is the slowest. There are no different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from San Bruno CityNet Services goes up to 300 Mbps, and all San Mateo County customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
San Bruno CityNet Services cable upload speeds
In San Mateo County download speeds tend to be than upload speeds for San Bruno CityNet Services cable. Compared to other ISPs, San Bruno CityNet Services is below average where upload speeds are concerned, and the slowest compared to other San Mateo County cable providers. San Bruno CityNet Services offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in San Mateo County is up to 10 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10.0 Mbps
Astound Broadband powered by Wave Broadband Fiber in San Mateo County, CA
Astound Broadband fiber coverage
About 3.67%, or 26,402 people, have Astound Broadband fiber internet available to them in the county. The company covers the northwest, central, southeast, east, and north San Mateo County area. Astound Broadband is a large internet service provider internet service providers in the US, with internet service available in a very small piece of San Mateo County.
Astound Broadband powered by Wave Broadband fiber download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in San Mateo County. Versus other fiber providers in the area, Astound Broadband fiber is one of the slowest. There are no different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Astound Broadband goes up to 1,000 Mbps, and all San Mateo County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Astound Broadband powered by Wave Broadband fiber upload speeds
In San Mateo County download speeds tend to be than upload speeds for Astound Broadband fiber. Compared to other ISPs, Astound Broadband is above average where upload speeds are concerned, and one of the slowest compared to other San Mateo County fiber providers. Astound Broadband offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in San Mateo County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Atherton Fiber Fiber in San Mateo County, CA
Atherton Fiber fiber coverage
About 1.43%, or 10,256 people, have Atherton Fiber fiber internet available to them in the county. The company covers the southeast San Mateo County area. Atherton Fiber is a small internet service provider internet service providers in the US, with internet service available in a very small piece of San Mateo County.
Atherton Fiber fiber download speeds
Atherton Fiber is the fastest when comparing download speeds to all other internet providers in San Mateo County. Versus other fiber providers in the area, Atherton Fiber fiber is the fastest. There are 5 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Atherton Fiber goes up to 10,000 Mbps, the slowest package only goes up to 50 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 2,618 Mbps.
Show all download speeds
- 18.4% up to 10,000.0 Mbps
- 77.2% up to 1,000.0 Mbps
- 2.0% up to 500.0 Mbps
- 0.3% up to 100.0 Mbps
- 2.3% up to 50.0 Mbps
Atherton Fiber fiber upload speeds
In San Mateo County download speeds tend to be than upload speeds for Atherton Fiber fiber. Compared to other ISPs, Atherton Fiber is the fastest where upload speeds are concerned, and the fastest compared to other San Mateo County fiber providers. Atherton Fiber offers 5 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 San Mateo County is up to 10,000 Mbps. Some customers have slower plan choices, which only go up to 50 Mbps. On average, Atherton Fiber customers can get speeds up to 2,618 Mbps.
Show all upload speeds
- 18.4% up to 10,000.0 Mbps
- 77.2% up to 1,000.0 Mbps
- 2.0% up to 500.0 Mbps
- 0.3% up to 100.0 Mbps
- 2.3% up to 50.0 Mbps
Etheric Networks Fixed Wireless in San Mateo County, CA
Etheric Networks fixed wireless coverage
About 100.00%, or 718,451 people, have Etheric Networks fixed wireless internet available to them in the county. The company covers the entire San Mateo County area. Etheric Networks is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of San Mateo County.
Etheric Networks fixed wireless download speeds
Etheric Networks is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other fixed wireless providers in the area, Etheric Networks fixed wireless is below average. There are 3 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Etheric Networks goes up to 300 Mbps, the slowest package only goes up to 80 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 111 Mbps.
Show all download speeds
- 7.9% up to 300.0 Mbps
- 19.6% up to 150.0 Mbps
- 72.5% up to 80.0 Mbps
Etheric Networks fixed wireless upload speeds
In San Mateo County download speeds tend to be than upload speeds for Etheric Networks fixed wireless. Compared to other ISPs, Etheric Networks is below average where upload speeds are concerned, and below average compared to other San Mateo County fixed wireless providers. Etheric Networks offers 3 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 San Mateo County is up to 300 Mbps. Some customers have slower plan choices, which only go up to 80 Mbps. On average, Etheric Networks customers can get speeds up to 111 Mbps.
Show all upload speeds
- 7.9% up to 300.0 Mbps
- 19.6% up to 150.0 Mbps
- 72.5% up to 80.0 Mbps
T-Mobile Home Internet in San Mateo County, CA
T-Mobile Home Internet fixed wireless coverage
About 31.99%, or 229,862 people, have T-Mobile Home Internet fixed wireless internet available to them in the county. The company covers the entire San Mateo County area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of San Mateo County.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are no different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from T-Mobile Home Internet goes up to 25 Mbps, and all San Mateo County customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In San Mateo County download speeds tend to be than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and below average compared to other San Mateo County fixed wireless providers. T-Mobile Home Internet offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in San Mateo County is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
San Mateo County Internet by Area
This information is most helpful to those looking for homes or considering moving to San Mateo County or any of the areas nearby.
How does internet in San Mateo County compare to the rest of California?
Internet speeds in San Mateo County are faster versus the average speeds in California: 949 Mbps in California versus 1,266 Mbps in the county. The state has similar internet availability compared to the county. Average internet coverage in California is 99.64% versus 100.00% in San Mateo County.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around San Mateo County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does internet service 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: equal internet coverage, faster speeds
- Alameda County, CA: less internet coverage, slower speeds
- Santa Clara County, CA: equal internet coverage, slower speeds
- Contra Costa County, CA: less internet coverage, slower speeds
- Marin County, CA: less internet coverage, slower speeds
- Santa Cruz County, CA: equal internet coverage, slower speeds
- Solano County, CA: less internet coverage, slower speeds
- Napa County, CA: less internet coverage, slower speeds
- San Joaquin County, CA: less internet coverage, slower speeds
- Sonoma County, CA: less internet coverage, slower speeds
Counties with Similar Populations
- Jefferson County, KY: less internet coverage, slower speeds
- Denton County, TX: less internet coverage, slower speeds
- Snohomish County, WA: less internet coverage, slower speeds
- Oklahoma County, OK: equal internet coverage, slower speeds
- Essex County, MA: less internet coverage, slower speeds
- Multnomah County, OR: less internet coverage, slower speeds
- Monroe County, NY: equal internet coverage, slower speeds
- Suffolk County, MA: less internet coverage, slower speeds
- Essex County, NJ: less internet coverage, slower speeds
- Cobb County, GA: less internet coverage, slower speeds