In Marin County there are 9 residential internet providers covering 99.64% of the county. The average home can get speeds up to 964 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.

 

9 Internet Service Providers in Marin County

XFINITY from Comcast | Cable

Availability:

94.51%

Avg. Speed:

1,000 Mbps

AT&T | DSL

Availability:

79.89%

Avg. Speed:

65 Mbps

AT&T | Fiber

Availability:

32.72%

Avg. Speed:

1,000 Mbps

sonic | DSL

Availability:

24.39%

Avg. Speed:

53 Mbps

Earthlink | DSL

Availability:

16.09%

Avg. Speed:

24 Mbps

Horizon Cable TV | Cable

Availability:

1.18%

Avg. Speed:

81 Mbps

T-Mobile Home Internet | 4G & 5G Home Internet

Availability:

43.25%

Avg. Speed:

25 Mbps

Etheric Networks | Fixed Wireless

Availability:

31.21%

Avg. Speed:

80 Mbps

Unwired | Fixed Wireless

Availability:

1.66%

Avg. Speed:

22 Mbps

To avoid wasting your time, providers with less than 1% coverage in Marin County are not shown.

 

Marin County Satellite TV & Internet Providers

DISH Satellite TV

Availability:

100%

Avg. Speed:

N/A: Call to bundle.

 

DIRECTV Satellite TV

Availability:

100%

Avg. Speed:

N/A

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

Availability:

100%

Avg. Speed:

15 Mbps

(High latency)

 

 

 

Where in Marin County is internet available?

Marin County, CA map of internet availability

Internet Availability Key

0%
50%
100%

 

Internet service is available in 99.64% of Marin 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 XFINITY. Call one of the companies with service in Marin County above to see who has service at your home, or click the technology to see where it can be found in Marin County.

 

How fast are internet speeds in Marin County?

The map below shows maximum internet speeds by area in Marin County.

Marin County, CA map of local internet speeds

Internet Speed Key

1 Mbps
50 Mbps
1000 Mbps+

 

The average Marin County home can get up to 964 Mbps on their internet plan. For most people, the fastest download speed in the county is 2,000 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 0.77 Mbps. See the internet provider details below for info about their speed and coverage in Marin County.

Internet speeds tend to be faster in the northeast parts of Marin County, and slower in the southwest areas of the county.

 

What type of internet should I choose in Marin County?

The fastest internet for you may vary based on where in Marin County you live. If speed is your main concern, cable will be the fastest internet in the county.

  • Fiber is the fastest internet type for 33.42% of Marin County homes.
  • Cable is fastest for 62.74% of the county.
  • DSL is fastest for less than 1%.
  • Fixed wireless is fastest for 2.59%.
  • Satellite internet may be the only option for less than 1% of Marin County homes.

 

Internet Market Health in Marin County

Marin County, CA map of internet competition

Internet Competition Key

4+ options
2 options
No alternatives

The map shows how competitive the Marin 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 Marin County based on what connections the average home has availabile:

  • Average number of internet service providers to a home: 3.3 (healthy)
  • Average types of service (fiber, cable, DSL, etc): 2.9 (very healthy)
  • Average providers with broadband (25 Mbps+) speeds: 2.9 (very healthy)

Overall, competition is healthy.

Marin County internet customers have the ability to buy internet service from 1 to 6 different providers, depending on where they live. For different types of service, Marin County homes have between 1 and 4 options. The type(s) of service available are cable, dsl, fixed wireless, 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. Marin County internet customers who want faster speeds have between 0 and 6 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, Marin County is doing better than most.

 

TV & Internet Providers in Depth

Below you'll find which TV and internet providers offer service in Marin County, along with details on where in Marin County and at what speeds.

XFINITY from Comcast Cable in Marin County, CA

XFINITY cable coverage

About 94.51%, or 238,558 people, have XFINITY cable internet available to them in the county. The company covers the entire Marin County area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of Marin County.

 

XFINITY from Comcast cable download speeds

XFINITY is above average when comparing download speeds to all other internet providers in Marin County. Versus other cable providers in the area, XFINITY cable is the fastest. There are no different maximum speeds throughout Marin County. The fastest plan anyone in Marin County can order from XFINITY goes up to 1,000 Mbps, and all Marin County customers can get this speed.

Show all download speeds

The following maximum speeds are marketed to XFINITY from Comcast customers in Marin County. Cheaper plans with slower speeds may be available.

  • 100.0% up to 1,000.0 Mbps

 

XFINITY from Comcast cable upload speeds

In Marin 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 Marin County cable providers. XFINITY offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Marin County is up to 35 Mbps, which is available to everyone covered.

Show all upload speeds

XFINITY's Marin County cable customers can expect the following upload speeds:

  • 100.0% up to 35.0 Mbps

 

 

 

AT&T DSL in Marin County, CA

AT&T DSL coverage

About 79.89%, or 201,648 people, have AT&T DSL internet available to them in the county. The company covers the entire Marin 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 Marin County.

 

AT&T DSL download speeds

AT&T is below average when comparing download speeds to all other internet providers in Marin County. Versus other DSL providers in the area, AT&T DSL is the fastest. There are 13 different maximum speeds throughout Marin County. The fastest plan anyone in Marin 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 Marin County customers is up to 65 Mbps.

Show all download speeds

The following maximum speeds are marketed to AT&T customers in Marin County. Cheaper plans with slower speeds may be available.

  • 50.6% up to 100.0 Mbps
  • 7.7% up to 75.0 Mbps
  • 8.7% up to 50.0 Mbps
  • 0.0% up to 45.0 Mbps
  • 4.4% up to 25.0 Mbps
  • 12.6% up to 18.0 Mbps
  • 4.7% up to 12.0 Mbps
  • 1.9% up to 10.0 Mbps
  • 5.8% up to 6.0 Mbps
  • 0.5% up to 5.0 Mbps
  • 1.5% up to 3.0 Mbps
  • 0.8% up to 1.5 Mbps
  • 0.9% up to 0.8 Mbps

 

AT&T DSL upload speeds

In Marin 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 above average compared to other Marin County DSL providers. AT&T offers 10 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 Marin 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 13 Mbps.

Show all upload speeds

AT&T's Marin County DSL customers can expect the following upload speeds:

  • 58.2% up to 20.0 Mbps
  • 8.7% up to 10.0 Mbps
  • 0.0% up to 6.0 Mbps
  • 3.4% up to 5.0 Mbps
  • 0.9% up to 2.0 Mbps
  • 17.3% up to 1.5 Mbps
  • 8.8% up to 1.0 Mbps
  • 1.5% up to 0.5 Mbps
  • 1.0% up to 0.4 Mbps
  • 0.1% up to 0.3 Mbps

 

 

 

AT&T Fiber in Marin County, CA

AT&T fiber coverage

About 32.72%, or 82,589 people, have AT&T fiber internet available to them in the county. The company covers the entire Marin County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Marin County.

 

AT&T fiber download speeds

AT&T is above average when comparing download speeds to all other internet providers in Marin County. Versus other fiber providers in the area, AT&T fiber is above average. There are no different maximum speeds throughout Marin County. The fastest plan anyone in Marin County can order from AT&T goes up to 1,000 Mbps, and all Marin County customers can get this speed.

Show all download speeds

The following maximum speeds are marketed to AT&T customers in Marin County. Cheaper plans with slower speeds may be available.

  • 100.0% up to 1,000.0 Mbps

 

AT&T fiber upload speeds

In Marin County download speeds tend to be than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Marin County fiber providers. AT&T offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Marin County is up to 1,000 Mbps, which is available to everyone covered.

Show all upload speeds

AT&T's Marin County fiber customers can expect the following upload speeds:

  • 100.0% up to 1,000.0 Mbps

 

 

 

sonic DSL in Marin County, CA

sonic DSL coverage

About 24.39%, or 61,575 people, have sonic DSL internet available to them in the county. The company covers the central, southeast, south, north, east, northeast, northwest, and southwest Marin County area. sonic is a large internet service provider internet service providers in the US, with internet service available in a small portion of Marin County.

 

sonic DSL download speeds

sonic is below average when comparing download speeds to all other internet providers in Marin County. Versus other DSL providers in the area, sonic DSL is above average. There are 3 different maximum speeds throughout Marin County. The fastest plan anyone in Marin 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 Marin County customers is up to 53 Mbps.

Show all download speeds

The following maximum speeds are marketed to sonic customers in Marin County. Cheaper plans with slower speeds may be available.

  • 32.8% up to 80.0 Mbps
  • 67.0% up to 40.0 Mbps
  • 0.2% up to 12.0 Mbps

 

sonic DSL upload speeds

In Marin 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 the fastest compared to other Marin 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 Marin 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 15 Mbps.

Show all upload speeds

sonic's Marin County DSL customers can expect the following upload speeds:

  • 32.8% up to 20.0 Mbps
  • 67.2% up to 12.0 Mbps

 

 

 

Earthlink DSL in Marin County, CA

Earthlink DSL coverage

About 16.09%, or 40,601 people, have Earthlink DSL internet available to them in the county. The company covers the northwest, north, and northeast Marin County area. Earthlink is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Marin County.

 

Earthlink DSL download speeds

Earthlink is below average when comparing download speeds to all other internet providers in Marin County. Versus other DSL providers in the area, Earthlink DSL is below average. There are 11 different maximum speeds throughout Marin County. The fastest plan anyone in Marin County can order from Earthlink goes up to 115 Mbps, the slowest package only goes up to 1.0 Mbps, and the county-wide average maximum speed for Marin County customers is up to 24 Mbps.

Show all download speeds

The following maximum speeds are marketed to Earthlink customers in Marin County. Cheaper plans with slower speeds may be available.

  • 4.0% up to 115.0 Mbps
  • 3.5% up to 90.0 Mbps
  • 1.3% up to 70.0 Mbps
  • 4.4% up to 45.0 Mbps
  • 21.5% up to 25.0 Mbps
  • 22.3% up to 18.0 Mbps
  • 23.6% up to 12.0 Mbps
  • 11.2% up to 9.0 Mbps
  • 3.1% up to 6.0 Mbps
  • 2.6% up to 3.0 Mbps
  • 2.5% up to 1.0 Mbps

 

Earthlink DSL upload speeds

In Marin County download speeds tend to be than upload speeds for Earthlink DSL. Compared to other ISPs, Earthlink is below average where upload speeds are concerned, and the slowest compared to other Marin County DSL providers. Earthlink offers 7 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 Marin County is up to 7.0 Mbps. Some customers have slower plan choices, which only go up to 0.13 Mbps. On average, Earthlink customers can get speeds up to 1.7 Mbps.

Show all upload speeds

Earthlink's Marin County DSL customers can expect the following upload speeds:

  • 4.0% up to 7.0 Mbps
  • 3.5% up to 5.0 Mbps
  • 5.7% up to 3.0 Mbps
  • 21.5% up to 2.0 Mbps
  • 60.2% up to 1.0 Mbps
  • 2.6% up to 0.4 Mbps
  • 2.5% up to 0.1 Mbps

 

 

 

Horizon Cable TV Cable in Marin County, CA

Horizon Cable TV cable coverage

About 1.18%, or 2,985 people, have Horizon Cable TV cable internet available to them in the county. The company covers the northwest and southwest Marin County area. Horizon Cable TV is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Marin County.

 

Horizon Cable TV cable download speeds

Horizon Cable TV is below average when comparing download speeds to all other internet providers in Marin County. Versus other cable providers in the area, Horizon Cable TV cable is the slowest. There are 2 different maximum speeds throughout Marin County. The fastest plan anyone in Marin County can order from Horizon Cable TV goes up to 100 Mbps, the slowest package only goes up to 75 Mbps, and the county-wide average maximum speed for Marin County customers is up to 81 Mbps.

Show all download speeds

The following maximum speeds are marketed to Horizon Cable TV customers in Marin County. Cheaper plans with slower speeds may be available.

  • 22.6% up to 100.0 Mbps
  • 77.4% up to 75.0 Mbps

 

Horizon Cable TV cable upload speeds

In Marin County download speeds tend to be than upload speeds for Horizon Cable TV cable. Compared to other ISPs, Horizon Cable TV is below average where upload speeds are concerned, and the slowest compared to other Marin County cable providers. Horizon Cable TV offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Marin County is up to 10 Mbps, which is available to everyone covered.

Show all upload speeds

Horizon Cable TV's Marin County cable customers can expect the following upload speeds:

  • 100.0% up to 10.0 Mbps

 

 

 

T-Mobile Home Internet in Marin County, CA

T-Mobile Home Internet fixed wireless coverage

About 43.25%, or 109,171 people, have T-Mobile Home Internet fixed wireless internet available to them in the county. The company covers the central, southeast, northwest, north, east, south, west, and northeast Marin 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 some of Marin 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 Marin 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 Marin County. The fastest plan anyone in Marin County can order from T-Mobile Home Internet goes up to 25 Mbps, and all Marin County customers can get this speed.

Show all download speeds

The following maximum speeds are marketed to T-Mobile Home Internet customers in Marin County. Cheaper plans with slower speeds may be available.

  • 100.0% up to 25.0 Mbps

 

T-Mobile Home Internet fixed wireless upload speeds

In Marin 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 Marin 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 Marin County is up to 3.0 Mbps, which is available to everyone covered.

Show all upload speeds

T-Mobile Home Internet's Marin County fixed wireless customers can expect the following upload speeds:

  • 100.0% up to 3.0 Mbps

 

 

 

Etheric Networks Fixed Wireless in Marin County, CA

Etheric Networks fixed wireless coverage

About 31.21%, or 78,786 people, have Etheric Networks fixed wireless internet available to them in the county. The company covers the southeast, south, east, central, and southwest Marin County area. Etheric Networks is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Marin County.

 

Etheric Networks fixed wireless download speeds

Etheric Networks is below average when comparing download speeds to all other internet providers in Marin County. Versus other fixed wireless providers in the area, Etheric Networks fixed wireless is below average. There are no different maximum speeds throughout Marin County. The fastest plan anyone in Marin County can order from Etheric Networks goes up to 80 Mbps, and all Marin County customers can get this speed.

Show all download speeds

The following maximum speeds are marketed to Etheric Networks customers in Marin County. Cheaper plans with slower speeds may be available.

  • 100.0% up to 80.0 Mbps

 

Etheric Networks fixed wireless upload speeds

In Marin 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 above average compared to other Marin 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 Marin County is up to 80 Mbps, which is available to everyone covered.

Show all upload speeds

Etheric Networks's Marin County fixed wireless customers can expect the following upload speeds:

  • 100.0% up to 80.0 Mbps

 

 

 

Unwired Fixed Wireless in Marin County, CA

Unwired fixed wireless coverage

About 1.66%, or 4,200 people, have Unwired fixed wireless internet available to them in the county. The company covers the southeast, south, central, and east Marin County area. Unwired is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Marin County.

 

Unwired fixed wireless download speeds

Unwired is below average when comparing download speeds to all other internet providers in Marin County. Versus other fixed wireless providers in the area, Unwired fixed wireless is below average. There are no different maximum speeds throughout Marin County. The fastest plan anyone in Marin County can order from Unwired goes up to 22 Mbps, and all Marin County customers can get this speed.

Show all download speeds

The following maximum speeds are marketed to Unwired customers in Marin County. Cheaper plans with slower speeds may be available.

  • 100.0% up to 22.0 Mbps

 

Unwired fixed wireless upload speeds

In Marin County download speeds tend to be 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 Marin County fixed wireless providers. Unwired offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Marin County is up to 9.0 Mbps, which is available to everyone covered.

Show all upload speeds

Unwired's Marin County fixed wireless customers can expect the following upload speeds:

  • 100.0% up to 9.0 Mbps

 

 

 

 

Marin County Internet by Area

This information is most helpful to those looking for homes or considering moving to Marin County or any of the areas nearby.

How does internet in Marin County compare to the rest of California?

Internet speeds in Marin County are comparable versus the average speeds in California: 949 Mbps in California versus 964 Mbps in the county. The state has similar internet availability compared to the county. Average internet coverage in California is 99.64% versus 99.64% in Marin County.

What zip codes have widespread internet?

Internet coverage varies by zip code and neighborhood. Some examples in or around Marin County are shown below. You can enter any zip code here to see TV and internet providers by zip code.

Zip Code
Internet Coverage
99.97%
99.26%
100.00%
99.44%
99.92%
Zip Code
Internet Coverage
99.98%
99.72%
100.00%
99.76%
0.00%

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

Counties with Similar Populations