In San Mateo County there are 16 residential internet providers covering 99.74% of the county. The average home can get speeds up to 4,842 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.
Jump to Availability Maps
16 Internet Service Providers in San Mateo 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 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.
Viasat Satellite Internet
Availability maps for all providers in San Mateo County
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
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Internet service is available in 99.74% of San Mateo County. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is AT&T. Now you can call companies in San Mateo County with more confidence that they might be available.
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 4,842 Mbps on their internet plan. For most people, the fastest download speed in the county is 25,000 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 10 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 southeast parts of San Mateo County, and slower in the west 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 74.56% of San Mateo County homes.
- Cable is fastest for 24.83% 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: 9.3 (very healthy)
- Average types of service (fiber, cable, DSL, etc): 3.6 (very healthy)
- Average providers with broadband (25 Mbps+) speeds: 9.1 (very healthy)
Overall, competition is very healthy.
San Mateo County internet customers have the ability to buy internet service from 1 to 15 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, fiber, and dsl, 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 0 and 15 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.
XFINITY from Comcast Cable in San Mateo County, CA

XFINITY cable coverage
About 98.61%, or 753,826 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 below 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 3 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 300 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 1,830 Mbps.
Show all download speeds
- 82.2% up to 2,000.0 Mbps
- 14.9% up to 1,200.0 Mbps
- 3.0% up to 300.0 Mbps
XFINITY from Comcast cable upload speeds
In San Mateo 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 San Mateo County cable providers. XFINITY 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 250 Mbps. Some customers have slower plan choices, which only go up to 10 Mbps. On average, XFINITY customers can get speeds up to 211 Mbps.
Show all upload speeds
- 82.2% up to 250.0 Mbps
- 14.9% up to 35.0 Mbps
- 3.0% up to 10.0 Mbps
AT&T DSL in San Mateo County, CA

AT&T DSL coverage
About 78.08%, or 596,840 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 much 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 5 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 10 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 72 Mbps.
Show all download speeds
- 52.0% up to 100.0 Mbps
- 12.5% up to 75.0 Mbps
- 15.6% up to 50.0 Mbps
- 6.2% up to 25.0 Mbps
- 13.7% up to 10.0 Mbps
AT&T DSL upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and below average compared to other San Mateo County DSL providers. AT&T 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 San Mateo County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, AT&T customers can get speeds up to 15 Mbps.
Show all upload speeds
- 64.5% up to 20.0 Mbps
- 15.6% up to 10.0 Mbps
- 6.2% up to 5.0 Mbps
- 13.7% up to 1.0 Mbps
EarthLink DSL in San Mateo County, CA

EarthLink DSL coverage
About 78.08%, or 596,840 people, have EarthLink DSL internet available to them in the county. The company covers the entire San Mateo County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of San Mateo County.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other DSL providers in the area, EarthLink DSL is below average. There are 5 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 72 Mbps.
Show all download speeds
- 52.0% up to 100.0 Mbps
- 12.5% up to 75.0 Mbps
- 15.6% up to 50.0 Mbps
- 6.2% up to 25.0 Mbps
- 13.7% up to 10.0 Mbps
EarthLink DSL upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and below average compared to other San Mateo County DSL providers. EarthLink 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 San Mateo County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, EarthLink customers can get speeds up to 15 Mbps.
Show all upload speeds
- 64.5% up to 20.0 Mbps
- 15.6% up to 10.0 Mbps
- 6.2% up to 5.0 Mbps
- 13.7% up to 1.0 Mbps
EarthLink Fiber in San Mateo County, CA

EarthLink fiber coverage
About 77.60%, or 593,225 people, have EarthLink fiber internet available to them in the county. The company covers the entire San Mateo County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of San Mateo County.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in San Mateo County. Versus other fiber providers in the area, EarthLink fiber is below average. There are 2 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 4,688 Mbps.
Show all download speeds
- 92.2% up to 5,000.0 Mbps
- 7.8% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In San Mateo County download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is above average where upload speeds are concerned, and below average compared to other San Mateo County fiber providers. EarthLink 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 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, EarthLink customers can get speeds up to 4,688 Mbps.
Show all upload speeds
- 92.2% up to 5,000.0 Mbps
- 7.8% up to 1,000.0 Mbps
AT&T Fiber in San Mateo County, CA

AT&T fiber coverage
About 77.60%, or 593,225 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 much 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 below average. There are 2 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 4,688 Mbps.
Show all download speeds
- 92.2% up to 5,000.0 Mbps
- 7.8% up to 1,000.0 Mbps
AT&T fiber upload speeds
In San Mateo County download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is above average where upload speeds are concerned, and below average compared to other San Mateo County fiber providers. AT&T 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 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, AT&T customers can get speeds up to 4,688 Mbps.
Show all upload speeds
- 92.2% up to 5,000.0 Mbps
- 7.8% up to 1,000.0 Mbps
Astound Broadband Cable in San Mateo County, CA

Astound Broadband cable coverage
About 39.19%, or 299,559 people, have Astound Broadband cable internet available to them in the county. The company covers the northwest, central, southeast, north, and east San Mateo County area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in some of San Mateo County.
Astound 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 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 1,500 Mbps, and all San Mateo County customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
Astound Broadband cable upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for Astound Broadband cable. Compared to other ISPs, Astound Broadband is below average where upload speeds are concerned, and the slowest 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 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Sonic Fiber in San Mateo County, CA

Sonic fiber coverage
About 27.55%, or 210,605 people, have Sonic fiber internet available to them in the county. The company covers the central, southeast, northwest, 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 below average. There are 2 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Sonic goes up to 10,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 4,555 Mbps.
Show all download speeds
- 39.5% up to 10,000.0 Mbps
- 60.5% up to 1,000.0 Mbps
Sonic fiber upload speeds
In San Mateo County download speeds tend to be equal to than upload speeds for Sonic fiber. Compared to other ISPs, Sonic is above average where upload speeds are concerned, and below average compared to other San Mateo County fiber 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 10,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, Sonic customers can get speeds up to 4,555 Mbps.
Show all upload speeds
- 39.5% up to 10,000.0 Mbps
- 60.5% up to 1,000.0 Mbps
Atherton Fiber Fiber in San Mateo County, CA

Atherton Fiber fiber coverage
About 2.64%, or 20,198 people, have Atherton Fiber fiber internet available to them in the county. The company covers the southeast San Mateo County area. Atherton Fiber is an average-sized 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 above average when comparing download speeds to all other internet providers in San Mateo County. Versus other fiber providers in the area, Atherton Fiber 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 Atherton Fiber goes up to 10,000 Mbps, and all San Mateo County customers can get this speed.
Show all download speeds
- 100.0% up to 10,000.0 Mbps
Atherton Fiber fiber upload speeds
In San Mateo County download speeds tend to be equal to than upload speeds for Atherton Fiber fiber. Compared to other ISPs, Atherton Fiber is above average where upload speeds are concerned, and above average compared to other San Mateo County fiber providers. Atherton Fiber 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 10,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10,000.0 Mbps
Astound Broadband Fiber in San Mateo County, CA

Astound Broadband fiber coverage
About 2.22%, or 16,941 people, have Astound Broadband fiber internet available to them in the county. The company covers the central, northwest, southeast, north, and east San Mateo County area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of San Mateo County.
Astound Broadband fiber download speeds
Astound Broadband is below 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 below 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 5,000 Mbps, the slowest package only goes up to 1,500 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 1,594 Mbps.
Show all download speeds
- 2.7% up to 5,000.0 Mbps
- 97.3% up to 1,500.0 Mbps
Astound Broadband fiber upload speeds
In San Mateo County download speeds tend to be equal to than upload speeds for Astound Broadband fiber. Compared to other ISPs, Astound Broadband is below average where upload speeds are concerned, and below average compared to other San Mateo County fiber providers. Astound Broadband 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 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,500 Mbps. On average, Astound Broadband customers can get speeds up to 1,594 Mbps.
Show all upload speeds
- 2.7% up to 5,000.0 Mbps
- 97.3% up to 1,500.0 Mbps
Astound Broadband DSL in San Mateo County, CA

Astound Broadband DSL coverage
About 2.09%, or 15,998 people, have Astound Broadband DSL internet available to them in the county. The company covers the central, southeast, northwest, and north San Mateo County area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of San Mateo County.
Astound Broadband DSL download speeds
Astound Broadband is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other DSL providers in the area, Astound Broadband DSL is one of the fastest. 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 DSL upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for Astound Broadband DSL. Compared to other ISPs, Astound Broadband is below average where upload speeds are concerned, and below average compared to other San Mateo County DSL 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 10 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10.0 Mbps
XFINITY from Comcast Fiber in San Mateo County, CA

XFINITY fiber coverage
About 2.00%, or 15,285 people, have XFINITY fiber internet available to them in the county. The company covers the northwest, central, east, southeast, and north San Mateo County area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of San Mateo County.
XFINITY from Comcast fiber download speeds
XFINITY is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other fiber providers in the area, XFINITY fiber is below average. There are 3 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 1,764 Mbps.
Show all download speeds
- 70.7% up to 2,000.0 Mbps
- 28.4% up to 1,200.0 Mbps
- 0.8% up to 1,000.0 Mbps
XFINITY from Comcast fiber upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for XFINITY fiber. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the slowest compared to other San Mateo County fiber providers. XFINITY 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 1,000 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 220 Mbps.
Show all upload speeds
- 3.9% up to 1,000.0 Mbps
- 68.5% up to 250.0 Mbps
- 27.6% up to 35.0 Mbps
Sail Internet DSL in San Mateo County, CA

Sail Internet DSL coverage
About 1.88%, or 14,369 people, have Sail Internet DSL internet available to them in the county. The company covers the northwest, east, central, and north San Mateo County area. Sail Internet 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.
Sail Internet DSL download speeds
Sail Internet is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other DSL providers in the area, Sail Internet DSL is one of the fastest. There are no different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Sail Internet 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
Sail Internet DSL upload speeds
In San Mateo County download speeds tend to be equal to than upload speeds for Sail Internet DSL. Compared to other ISPs, Sail Internet is below average where upload speeds are concerned, and the fastest compared to other San Mateo County DSL providers. Sail 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 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
T-Mobile Home Internet Fixed Wireless in San Mateo County, CA

T-Mobile Home Internet fixed wireless coverage
About 91.22%, or 697,317 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 most 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 2 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 100 Mbps, the slowest package only goes up to 25 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 78 Mbps.
Show all download speeds
- 70.1% up to 100.0 Mbps
- 29.9% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In San Mateo County download speeds tend to be faster than 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 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 3.0 Mbps. On average, T-Mobile Home Internet customers can get speeds up to 15 Mbps.
Show all upload speeds
- 70.1% up to 20.0 Mbps
- 29.9% up to 3.0 Mbps
Etheric Networks Fixed Wireless in San Mateo County, CA

Etheric Networks fixed wireless coverage
About 82.85%, or 633,350 people, have Etheric Networks fixed wireless internet available to them in the county. The company covers the northwest, southeast, central, east, north, south, and west San Mateo County area. Etheric Networks is a large internet service provider internet service providers in the US, with internet service available in much 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 no different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Etheric Networks goes up to 250 Mbps, and all San Mateo County customers can get this speed.
Show all download speeds
- 100.0% up to 250.0 Mbps
Etheric Networks fixed wireless upload speeds
In San Mateo County download speeds tend to be faster than 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 no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in San Mateo County is up to 100 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 100.0 Mbps
EarthLink Fixed Wireless in San Mateo County, CA

EarthLink fixed wireless coverage
About 80.64%, or 616,421 people, have EarthLink fixed wireless internet available to them in the county. The company covers the entire San Mateo County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of San Mateo County.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other fixed wireless providers in the area, EarthLink fixed wireless is one of the slowest. There are 3 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 51 Mbps.
Show all download speeds
- 34.3% up to 100.0 Mbps
- 65.7% up to 25.0 Mbps
- 0.0% up to 10.0 Mbps
EarthLink fixed wireless upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the slowest compared to other San Mateo County fixed wireless providers. EarthLink 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 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, EarthLink customers can get speeds up to 8.8 Mbps.
Show all upload speeds
- 34.3% up to 20.0 Mbps
- 65.7% up to 3.0 Mbps
- 0.0% up to 1.0 Mbps
AT&T Fixed Wireless in San Mateo County, CA

AT&T fixed wireless coverage
About 80.64%, or 616,421 people, have AT&T fixed wireless 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 much of San Mateo County.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other fixed wireless providers in the area, AT&T fixed wireless is one of the slowest. There are 3 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 10 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 51 Mbps.
Show all download speeds
- 34.3% up to 100.0 Mbps
- 65.7% up to 25.0 Mbps
- 0.0% up to 10.0 Mbps
AT&T fixed wireless upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and one of the slowest compared to other San Mateo County fixed wireless providers. AT&T 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 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, AT&T customers can get speeds up to 8.8 Mbps.
Show all upload speeds
- 34.3% up to 20.0 Mbps
- 65.7% up to 3.0 Mbps
- 0.0% up to 1.0 Mbps
Verizon Fixed Wireless in San Mateo County, CA

Verizon fixed wireless coverage
About 66.80%, or 510,652 people, have Verizon fixed wireless internet available to them in the county. The company covers the entire San Mateo County area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in much of San Mateo County.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other fixed wireless providers in the area, Verizon fixed wireless is below average. There are 2 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Verizon goes up to 1,000 Mbps, the slowest package only goes up to 300 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 340 Mbps.
Show all download speeds
- 5.7% up to 1,000.0 Mbps
- 94.3% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and below average compared to other San Mateo County fixed wireless providers. Verizon 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 75 Mbps. Some customers have slower plan choices, which only go up to 20 Mbps. On average, Verizon customers can get speeds up to 23 Mbps.
Show all upload speeds
- 5.7% up to 75.0 Mbps
- 94.3% up to 20.0 Mbps
Unwired Fixed Wireless in San Mateo County, CA

Unwired fixed wireless coverage
About 21.55%, or 164,720 people, have Unwired fixed wireless internet available to them in the county. The company covers the northwest, central, north, and west San Mateo County area. Unwired is a large internet service provider internet service providers in the US, with internet service available in a small portion of San Mateo County.
Unwired fixed wireless download speeds
Unwired is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other fixed wireless providers in the area, Unwired 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 Unwired 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
Unwired fixed wireless upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for Unwired fixed wireless. Compared to other ISPs, Unwired is below average where upload speeds are concerned, and below average compared to other San Mateo County fixed wireless providers. Unwired 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 25 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 25.0 Mbps
Cruzio Internet Fixed Wireless in San Mateo County, CA

Cruzio Internet fixed wireless coverage
About 6.49%, or 49,612 people, have Cruzio Internet fixed wireless internet available to them in the county. The company covers the southeast, southwest, west, and south San Mateo County area. Cruzio Internet 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.
Cruzio Internet fixed wireless download speeds
Cruzio 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, Cruzio Internet fixed wireless is above average. There are 3 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Cruzio Internet goes up to 1,000 Mbps, the slowest package only goes up to 100 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 646 Mbps.
Show all download speeds
- 43.2% up to 1,000.0 Mbps
- 39.3% up to 500.0 Mbps
- 17.4% up to 100.0 Mbps
Cruzio Internet fixed wireless upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for Cruzio Internet fixed wireless. Compared to other ISPs, Cruzio Internet is below average where upload speeds are concerned, and above average compared to other San Mateo County fixed wireless providers. Cruzio Internet 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 1,000 Mbps. Some customers have slower plan choices, which only go up to 100 Mbps. On average, Cruzio Internet customers can get speeds up to 422 Mbps.
Show all upload speeds
- 34.4% up to 1,000.0 Mbps
- 8.9% up to 250.0 Mbps
- 56.8% up to 100.0 Mbps
Ridge Wireless Fixed Wireless in San Mateo County, CA

Ridge Wireless fixed wireless coverage
About 5.62%, or 42,982 people, have Ridge Wireless fixed wireless internet available to them in the county. The company covers the southeast and south San Mateo County area. Ridge Wireless 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.
Ridge Wireless fixed wireless download speeds
Ridge Wireless is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other fixed wireless providers in the area, Ridge Wireless fixed wireless is below average. There are 5 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Ridge Wireless goes up to 300 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 69 Mbps.
Show all download speeds
- 0.1% up to 300.0 Mbps
- 7.4% up to 100.0 Mbps
- 39.5% up to 85.0 Mbps
- 44.3% up to 60.0 Mbps
- 8.7% up to 10.0 Mbps
Ridge Wireless fixed wireless upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for Ridge Wireless fixed wireless. Compared to other ISPs, Ridge Wireless is below average where upload speeds are concerned, and below average compared to other San Mateo County fixed wireless providers. Ridge Wireless 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 300 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Ridge Wireless customers can get speeds up to 29 Mbps.
Show all upload speeds
- 0.1% up to 300.0 Mbps
- 7.4% up to 60.0 Mbps
- 39.5% up to 40.0 Mbps
- 44.3% up to 20.0 Mbps
- 8.7% up to 1.0 Mbps
Sail Internet Fixed Wireless in San Mateo County, CA

Sail Internet fixed wireless coverage
About 4.51%, or 34,441 people, have Sail Internet fixed wireless internet available to them in the county. The company covers the northwest, north, east, and central San Mateo County area. Sail Internet 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.
Sail Internet fixed wireless download speeds
Sail 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, Sail 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 Sail Internet goes up to 200 Mbps, and all San Mateo County customers can get this speed.
Show all download speeds
- 100.0% up to 200.0 Mbps
Sail Internet fixed wireless upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for Sail Internet fixed wireless. Compared to other ISPs, Sail Internet is below average where upload speeds are concerned, and below average compared to other San Mateo County fixed wireless providers. Sail 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 100 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 100.0 Mbps
Tekify Fixed Wireless in San Mateo County, CA

Tekify fixed wireless coverage
About 3.18%, or 24,274 people, have Tekify fixed wireless internet available to them in the county. The company covers the southeast and east San Mateo County area. Tekify 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.
Tekify fixed wireless download speeds
Tekify is below average when comparing download speeds to all other internet providers in San Mateo County. Versus other fixed wireless providers in the area, Tekify fixed wireless is above average. There are 3 different maximum speeds throughout San Mateo County. The fastest plan anyone in San Mateo County can order from Tekify goes up to 500 Mbps, the slowest package only goes up to 65 Mbps, and the county-wide average maximum speed for San Mateo County customers is up to 406 Mbps.
Show all download speeds
- 10.1% up to 500.0 Mbps
- 82.4% up to 425.0 Mbps
- 7.5% up to 65.0 Mbps
Tekify fixed wireless upload speeds
In San Mateo County download speeds tend to be faster than than upload speeds for Tekify fixed wireless. Compared to other ISPs, Tekify is below average where upload speeds are concerned, and below average compared to other San Mateo County fixed wireless providers. Tekify 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 110 Mbps. Some customers have slower plan choices, which only go up to 65 Mbps. On average, Tekify customers can get speeds up to 82 Mbps.
Show all upload speeds
- 10.1% up to 110.0 Mbps
- 82.4% up to 80.0 Mbps
- 7.5% up to 65.0 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 much faster versus the average speeds in California: 3,631 Mbps in California versus 4,842 Mbps in the county. The state has similar internet availability compared to the county. Average internet coverage in California is 98.73% versus 99.74% 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
- Stanislaus County, CA: more internet coverage, slower speeds
- Mariposa County, CA: less internet coverage, slower speeds
- San Juan County, UT: less internet coverage, slower speeds
- Rio Grande County, CO: less internet coverage, slower speeds
- Alamosa County, CO: less internet coverage, slower speeds
- Huerfano County, CO: less internet coverage, slower speeds
- Stanton County, KS: less internet coverage, slower speeds
- Grant County, KS: less internet coverage, slower speeds
- Haskell County, KS: less internet coverage, slower speeds
- Kiowa County, KS: less internet coverage, slower speeds
Counties with Similar Populations
- Baltimore County, MD: less internet coverage, slower speeds
- Cobb County, GA: less internet coverage, slower speeds
- San Joaquin County, CA: less internet coverage, slower speeds
- Middlesex County, NJ: less internet coverage, slower speeds
- Monroe County, NY: less internet coverage, faster speeds
- Montgomery County, PA: less internet coverage, slower speeds
- Multnomah County, OR: less internet coverage, slower speeds
- Norfolk County, MA: less internet coverage, slower speeds
- Oklahoma County, OK: less internet coverage, slower speeds
- Polk County, FL: less internet coverage, slower speeds


