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Best Internet Providers in San Quentin, CA

All 3 providers, ranked by coverage, speed and customer ratings

San Quentin has 3 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable and Fixed Wireless internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 2 available internet technologies in San Quentin.

This page reflects the most recent FCC update from October 19, 2026, based on the Broadband Data Collection as of December 31, 2025.

What changed
Homes with fiber0.0%Marin County 59.4%bottom 8%
Average top speed2,000 MbpsMarin County 3,669 Mbpstop 31%
Providers32.1 at a typical addressbottom 3%
Homes with internet100%Marin County 96%top 1%
ISP Report CardDscore 19 of 100bottom 6%
Connectivity index99/100Marin County 85/100top 1%

Ranks compare San Quentin with the 15,682 US towns of 1,000 to 9,999 people, the tiers of our fastest-cities rankings.

The Best Internet in San Quentin, CA at a Glance

Top rankedSee the full rankingFirst in our San Quentin ranking by coverage, speed and customer ratings.See plans
FastestXFINITY from ComcastUp to 2,000 Mbps advertised to the FCCCompare speeds
Best ratedXFINITY from ComcastRated 3.43 out of 5 by its customers, available to 99.11% of homesSee plans
Lowest priceSee prices by providerListed prices appear on each provider below.See plans

San Quentin Internet Providers, Ranked by Coverage, Speed and Customer Ratings

XFINITY

XFINITY logo

Availability:

99.1%

Customer Rating:

3.4 of 5 stars

(2379)

View Plans

1-877-244-3013 Price: $45.00 - $119.00 / mo.

Connection

Availability

Avg. Download Speed InfoThe highest download speed available in San Quentin.

Max Download Speed InfoCalculated from the maximum speeds available to most San Quentin residents, weighted by block population.

Customer Rating

Cable

99.1%

2,000 Mbps

2,000 Mbps

Cable: 3.3 of 5 stars

(2077)

Unwired

Unwired logo

Availability:

98.5%

Customer Rating:

1.0 of 5 stars

(1)

View Plans

Price: $55.00 - $175.00 / mo.

Connection

Availability

Avg. Download Speed InfoThe highest download speed available in San Quentin.

Max Download Speed InfoCalculated from the maximum speeds available to most San Quentin residents, weighted by block population.

Customer Rating

Fixed Wireless

98.5%

300 Mbps

300 Mbps

Wireless: 1.0 of 5 stars

(1)

Verizon

Verizon logo

Availability:

13.7%

Customer Rating:

3.8 of 5 stars

(816)

View Plans

1-833-213-7018 Price: $50.00 / mo.

Connection

Availability

Avg. Download Speed InfoThe highest download speed available in San Quentin.

Max Download Speed InfoCalculated from the maximum speeds available to most San Quentin residents, weighted by block population.

Customer Rating

Fixed Wireless

13.7%

290 Mbps

300 Mbps

Wireless: 3.6 of 5 stars

(362)

Satellite providers, which generally offer 100% coverage across the United States, are available for San Quentin residents as well. Some of the top satellite options include Dish Network, DirecTV, HughesNet, Viasat, and Starlink. These providers offer varied services and pricing, giving residents flexibility in choosing the best option for their location and needs.

Starlink

Starlink logo

Availability:

100%

Customer Rating:

3.9 of 5 stars

(65)

View Plans

Price: $55.00 - $130.00 / mo.

Viasat

Viasat logo

Availability:

100%

Customer Rating:

1.7 of 5 stars

(12)

View Plans

1-833-875-1370 Price: $69.99 - $179.99 / mo.

DirecTV

DirecTV logo

Availability:

100%

Customer Rating:

4.3 of 5 stars

(9)

Dish

Dish logo

Availability:

100%

Customer Rating:

3.7 of 5 stars

(13)

View Plans

1-833-875-1332 Price: $55.00 / mo.

Providers with less than 1% coverage in this city are excluded from the list. To see if one of these providers is available at your home, please use the address search above.

Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local San Quentin ratings may vary and are shown below.

Who is the Best Internet Provider in San Quentin, CA?

XFINITY from Comcast is the highest-rated internet provider in San Quentin based on 240 California customer reviews, and Unwired has the highest rating nationwide. The provider information above and the information immediately below can help you decide. Compare provider ratings and review counts above.

Which Providers are Available at my Home in San Quentin?

Coverage changes block by block. Pick a provider and a technology to see where its service reaches: the darker the area, the larger the share of homes it covers. For your exact address, use the address search above.

San Quentin, CA map of internet availability

How San Quentin Compares to Places Its Size

San Quentin's report card score is in the bottom 6% and its connectivity index is in the top 1%.

Dscore 19 of 100ISP Report CardGrades what providers offer: fiber availability, the download speed most homes can get and the number of providers at a typical address.bottom 6%
99/100Marin County 85/100, US 69/100Digital Connectivity IndexMeasures how much households need and use the internet: household size, working from home, devices and subscriptions.top 1%
Measure San Quentin Rank among US towns of 1,000 to 9,999 people Marin County California US Leader
ISP Report Card inputs: what providers offer here
Fiber availability 0.0% bottom 8% 59.4% 62.4% 71.5% 1,056 places at 100.0%
Average top speed 2,000 Mbps top 31% 3,669 Mbps 3,834 Mbps 3,486 Mbps Collegedale, TN and Lakesite, TN and 2 more (25,000 Mbps)
Providers at a typical address 2.1 bottom 3% 7.5 8 7.1 McLendon-Chisholm, TX (14.2)
Connectivity index inputs: how much households need and use the internet
People per household 5.6 top 1% 2.6 3.0 2.7 St. George, GA (6.2)
Workers who work from home 33% top 2% 32% 17% 15% Indian Springs, NV (76%)
Homes with a computer, tablet or phone 100% top 1% 98% 97% 96% Tied with 514 other places at 100%
Homes with internet 100% top 1% 96% 94% 91% Tied with 114 other places at 100%
Homes on fiber, cable or DSL 98% top 1% 86% 79% 76% Bunkerville, NV and Fort Myer, VA and 3 more (100%)
More about the households here
Homes with a desktop or laptop 98% top 1% 90% 84% 81% 12 places at 100%
Median household income $115,495 top 11% $160,966 $111,728 $93,246 16 places at $250,001
Residents in school (6th grade to college) 18% top 9% 15% 17% 16% University Park, PA (95%)

Fiber reaches 0.0% of homes in San Quentin, against 59.4% across Marin County and 62.4% across California. Households in San Quentin are larger than the US average (5.6 people against 2.7); 33% of workers work from home (US 15%); and the median household income is $115,495 (US $93,246).

Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.

Fiber, 5G, Cable and DSL Internet in San Quentin

Which Fiber Internet Providers are Available in San Quentin?

According to the most recently submitted data by internet service providers to the FCC, there are currently no fiber providers available in San Quentin, CA.

Which Fixed Wireless and LTE Internet Providers are Available in San Quentin?

Unwired Fixed Wireless in San Quentin, CA

Unwired logo

Availability:

98.5%

Customer Rating:

1.0 of 5 stars

(1)

Avg. Download Speed

300 Mbps

Unwired offers Fixed Wireless service to 98.5% of San Quentin homes. Across the city, Unwired Fixed Wireless is the only type of service available from the company, with speeds up to 300 Mbps, with speeds from 300 Mpbs up to 300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 25 and as high as 25, with an average of 25 Mbps throughout the city. Unwired Fixed Wireless is rated other types of internet service available in San Quentin from Unwired in terms of customer satisfaction.

Verizon Fixed Wireless in San Quentin, CA

Verizon logo

Availability:

13.7%

Customer Rating:

3.6 of 5 stars

(362)

Avg. Download Speed

290 Mbps

Verizon offers Fixed Wireless service to 13.7% of San Quentin homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 290 Mbps, with speeds from 25 Mpbs up to 300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 6.0 and as high as 20, with an average of 20 Mbps throughout the city. Verizon Fixed Wireless is rated other types of internet service available in San Quentin from Verizon in terms of customer satisfaction.

Which Cable Internet Providers are Available in San Quentin?

XFINITY Cable in San Quentin, CA

XFINITY logo

Availability:

99.1%

Customer Rating:

3.3 of 5 stars

(2077)

Avg. Download Speed

2,000 Mbps

XFINITY from Comcast offers Cable service to 99.1% of San Quentin homes. Across the city, XFINITY Cable is the only type of service available from the company, with speeds up to 2,000 Mbps, with speeds from 2,000 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 250 and as high as 250, with an average of 250 Mbps throughout the city. XFINITY Cable is rated the same as other types of internet service available in San Quentin from XFINITY in terms of customer satisfaction.

Which DSL Internet Providers are Available in San Quentin?

According to the most recently submitted data by internet service providers to the FCC, there are currently no DSL providers available in San Quentin, CA.

Internet in San Quentin by Neighborhood and ZIP Code

San Quentin has 1 ZIP code with its own page. Each row links to that place’s page.

Neighborhoods in San Quentin

Neighborhood People Homes with fiber Average top speed Providers at a typical address Report card Connectivity

ZIP codes in San Quentin

ZIP code People Homes with fiber Average top speed Providers at a typical address Report card Connectivity
949644,284 0.0%2,000 Mbps2.1D99/100

How San Quentin Compares to Nearby Places

The 10 places nearest to San Quentin that have their own pages are all within 5 miles. Among them, Ross has the most homes with fiber (89.5%) and Belvedere-Tiburon the fewest (0.0%); San Quentin has 0.0%.

Place People Homes with fiber Average top speed Providers at a typical address Report card Connectivity
San Quentin (this page)4,284 0.0%2,000 Mbps2.1D99/100
San Rafael70,581 56.7%4,968 Mbps8.1B84/100
Mill Valley19,654 72.1%4,128 Mbps8.5B+85/100
Larkspur12,494 64.4%3,578 Mbps8.1B81/100
Tamalpais-Homestead Valley11,492 85.6%4,516 Mbps8.2B+91/100
Corte Madera10,222 73.5%4,112 Mbps7.7B+87/100
Tiburon8,482 0.0%1,881 Mbps8.4C+92/100
Kentfield6,466 65.2%3,769 Mbps8.5B+78/100
Ross5,222 89.5%6,062 Mbps9.1A-93/100
Belvedere-Tiburon2,301 0.0%1,713 Mbps8.2C95/100
Greenbrae258 43.4%3,302 Mbps8B83/100

Who is the Fastest Internet Provider in San Quentin?

Based on both FCC data and unbiased customer ratings, the fastest internet in the city comes from XFINITY from Comcast.

Data Reported to FCC by ISPs: Average Maximum Available in San Quentin

Max Advertised Speed in San Quentin, CA
XFINITY from Comcast2,000
Unwired300
Verizon300
Viasat100
HughesNet25

How fast is your internet?

Test your connection here and see it next to the speeds providers advertise in San Quentin. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.

Customer Ratings for San Quentin Internet Providers

Based on 240 reviews from California internet customers, XFINITY from Comcast is the best internet service provider for San Quentin residents. XFINITY from Comcast was rated at an average of 3.43 out of 5 in our report for overall customer satisfaction. Unwired wins for second-place in California, with 1.00 out of 5 stars and 98.5% coverage in San Quentin.

At a national level, based on 3196 national reviews for any of the providers listed above, Unwired is rated higher than any other provider, with a rating of 1.00 out of 5.

Local, State, and National Ratings for all San Quentin Internet Providers

The table below shows average customer ratings from customers in San Quentin, California, and customers throughout the country.

ISP / Tech TypeSan Quentin OverallCalifornia OverallNational OverallFor Service
VerizonNo rating yet (0)3.5 of 5 stars (28)4 of 5 stars (816)View Plans
HughesNetNo rating yet (0)3 of 5 stars (1)2.5 of 5 stars (25)View Plans
ViasatNo rating yet (0)3 of 5 stars (1)1.5 of 5 stars (12)View Plans
XFINITYNo rating yet (0)3.5 of 5 stars (211)3.5 of 5 stars (2379)View Plans
UnwiredNo rating yet (0)1 of 5 stars (1)1 of 5 stars (1)View Plans

Customer Ratings for Internet Provider Speeds in San Quentin

Based on data reported by San Quentin ISPs to the FCC, the fastest speeds in the city are available through XFINITY from Comcast. The company offers speeds up to 2,000 Mbps in San Quentin. Therefore, the average customer can get up to 2,000 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.

Additionally, actual customers rated their satisfaction with internet speed highest with XFINITY from Comcast. This indicates XFINITY reliably delivers speeds expected by the customer based on the plan they are paying for.

ISP / Tech TypeSan Quentin SpeedCalifornia SpeedNational SpeedFor Service
XFINITYNo rating yet (0)4 of 5 stars (211)4 of 5 stars (2379)View Plans
VerizonNo rating yet (0)3.5 of 5 stars (28)4 of 5 stars (816)View Plans
HughesNetNo rating yet (0)2 of 5 stars (1)2.5 of 5 stars (25)View Plans
UnwiredNo rating yet (0)2 of 5 stars (1)2 of 5 stars (1)View Plans
ViasatNo rating yet (0)1 of 5 stars (1)1.5 of 5 stars (12)View Plans

Who is the Cheapest Internet Provider in San Quentin?

Of the providers in San Quentin, customers rate Unwired the best for price. Data comes from customers rating their satisfaction with pricing: in San Quentin where enough of them have reviewed a provider, otherwise across California or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.

Unwired is rated 1.00 out of 5 for price, which is much lower than the average across all internet providers in the country. XFINITY from Comcast is rated second for affordability, with an average price rating of 3.09 out of 5.

The table below shows how customers in San Quentin, California, and the United States rated the affordability of their internet service.

Rated Affordability in San Quentin

ISP / Tech TypeSan Quentin AffordabilityCalifornia AffordabilityNational AffordabilityFor Service
VerizonNo rating yet (0)4 of 5 stars (28)3.5 of 5 stars (816)View Plans
HughesNetNo rating yet (0)3 of 5 stars (1)2.5 of 5 stars (25)View Plans
ViasatNo rating yet (0)3 of 5 stars (1)1.5 of 5 stars (12)View Plans
UnwiredNo rating yet (0)1 of 5 stars (1)1 of 5 stars (1)View Plans
XFINITYNo rating yet (0)3 of 5 stars (211)3 of 5 stars (2379)View Plans

Customer Reviews for Internet Service Providers in California

Customer Reviews

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Steve

ting Fiber

1 of 5 stars November 13, 2026

Slow, 1/10th the speed they advertised

Plan Pricing: 1 of 5 stars
Internet Speed: 1 of 5 stars
Overall Rating: 1 of 5 stars

Robert

Verizon Fixed Wireless

1 of 5 stars November 10, 2026

Was cut off with .out notice due to upgrade and was not provided connection to upgrade from the same location (tower). Causing further problems in service and added cost.

Plan Pricing: 1 of 5 stars
Internet Speed: 1 of 5 stars
Overall Rating: 1 of 5 stars

ISPReports User

AT&T DSL

1 of 5 stars November 08, 2026

Lousy

Plan Pricing: 1 of 5 stars
Internet Speed: 1 of 5 stars
Overall Rating: 1 of 5 stars

ISPReports User

Fidium

1 of 5 stars November 08, 2026
Plan Pricing: 3 of 5 stars
Internet Speed: 1 of 5 stars
Overall Rating: 1 of 5 stars

Vernice

Frontier Fiber

2 of 5 stars November 01, 2026

Horrible this is horrible. My internet has been down for two days in a half. Never again

Plan Pricing: No rating yet
Internet Speed: No rating yet
Overall Rating: 2 of 5 stars

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Which ISP Should You Choose in San Quentin?

The right ISP for you depends upon your needs, but in general we can make the following suggestions:

  • The best all-around internet service provider in San Quentin is XFINITY.
  • The fastest internet provider should be XFINITY from Comcast. Considering speed for the money and reliability in speeds, XFINITY from Comcast may be a better choice based on real-world local customer feedback.
  • The most affordable internet provider in San Quentin is Unwired.
  • XFINITY from Comcast, Viasat, and HughesNet has the broadest coverage in San Quentin, available to 99.1% of homes, and is most likely to cover your home. To find out exactly what’s available at your home, please use our address search tool.

Compare Internet Providers in San Quentin