9 Best Internet Providers in Downtown San Mateo, San Mateo, CA
Find internet availability by address in Downtown San Mateo, San Mateo, CA
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | Downtown San Mateo ISP Report Card | Business Internet in Downtown San Mateo
| Downtown San Mateo ISP Report Card | A- | |
| Download Speed for Most Households | 3,403 Mbps | |
| Number of Internet Service Providers | 9 | |
| Real Downtown San Mateo Customer Ratings | 0 |
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
Downtown San Mateo has 9 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, DSL, and Fixed Wireless internet are available in the neighborhood. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Downtown San Mateo.
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Downtown San Mateo has 9 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, DSL, and Fixed Wireless internet are available in the neighborhood. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Downtown San Mateo.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
XFINITY
Connection
Customer Rating
Cable
Astound Broadband
Connection
Customer Rating
Fiber
Cable
DSL
EarthLink
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
AT&T
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
Above are the top 4 providers in Downtown San Mateo, San Mateo, CA for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your neighborhood.
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 Downtown San Mateo ratings may vary and are shown below.
Who is the Best Internet Provider in Downtown San Mateo, San Mateo, CA?
Sonic is the highest-rated internet provider in Downtown San Mateo based on 379 San Mateo customer reviews, and Sonic 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. The chart and table below show average customer ratings from customers in Downtown San Mateo, California, and customers throughout the country.
Top Rated Internet Providers in Downtown San Mateo
Local, State, and National Ratings for all Downtown San Mateo Internet Providers
| ISP / Tech Type | Downtown San Mateo Overall | California Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Sonic | (0) | (11) | (11) | View Plans | ||
| T-Mobile Home Internet | (0) | (22) | (284) | View Plans | ||
| Verizon | (0) | (24) | (723) | View Plans | ||
| XFINITY | (0) | (193) | (2164) | View Plans | ||
| AT&T | (0) | (107) | (924) | View Plans | ||
| Astound Broadband | (0) | (17) | (109) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans | ||
| Unwired | (0) | (1) | (1) | View Plans | ||
| Etheric Networks | (0) | (0) | (0) | View Plans |
Based on 379 reviews from San Mateo internet customers, Sonic is the best internet service provider for Downtown San Mateo residents. Sonic was rated at an average of 4.36 out of 5 in our report for overall customer satisfaction. T-Mobile Home Internet wins for second-place in San Mateo, with 4.00 out of 5 stars and 100.0% coverage in Downtown San Mateo.
At a national level, based on 4257 national reviews for any of the providers listed above, Sonic is rated higher than any other provider, with a rating of 4.27 out of 5.
Which Providers are Available at my Home in Downtown San Mateo?
a different provider.

Internet Availability Key
Speeds and coverage vary within the neighborhood, and sometimes even from block to block. The map shows speeds per provider and where each provider is available.
Who is the Fastest Internet Provider in Downtown San Mateo?
According to unbiased feedback from real internet customers in the neighborhood, they reported being happiest with speeds provided by Sonic. On the other hand, based on data provided by the internet providers to the FCC, EarthLink and AT&T should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in Downtown San Mateo
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| AT&T | 5,000 Mbps | ||
| EarthLink | 5,000 Mbps | ||
| XFINITY from Comcast | 2,000 Mbps | ||
| Astound Broadband | 1,500 Mbps | ||
| Verizon | 1,000 Mbps | ||
| Sonic | 1,000 Mbps | ||
| Unwired | 300 Mbps | ||
| Etheric Networks | 250 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| HughesNet | 25 Mbps |
Customer Ratings for Internet Provider Speeds in Downtown San Mateo
| ISP / Tech Type | Downtown San Mateo Speed | California Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Sonic | (0) | (11) | (11) | View Plans | ||
| Verizon | (0) | (24) | (723) | View Plans | ||
| T-Mobile Home Internet | (0) | (22) | (284) | View Plans | ||
| XFINITY | (0) | (193) | (2164) | View Plans | ||
| Astound Broadband | (0) | (17) | (109) | View Plans | ||
| AT&T | (0) | (107) | (924) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Unwired | (0) | (1) | (1) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans | ||
| Etheric Networks | (0) | (0) | (0) | View Plans |
Based on data reported by Downtown San Mateo ISPs to the FCC, the fastest speeds in the neighborhood are available through EarthLink and AT&T. These internet providers offer speeds up to 5,000 Mbps in Downtown San Mateo. Therefore, the average customer can get up to 2,597 Mbps if they're willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers in the neighborhood rated their satisfaction with internet speed highest with Sonic. This indicates Sonic reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in Downtown San Mateo?
San Mateo customers rate T-Mobile Home Internet as the cheapest internet service provider in city. Data comes from customers in the city rating their satisfaction with pricing. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
T-Mobile Home Internet received a local rating of 4.18 out of 5, which is about average for the average across all internet providers in the country. Sonic is rated in second place for affordability by the company’s Downtown San Mateo customers with an average price rating of 4.09 out of 5.
The chart and graph below show how customers in Downtown San Mateo, San Mateo, and the United States rated the affordability of their internet service.
Rated Affordability in Downtown San Mateo
| ISP / Tech Type | Downtown San Mateo Affordability | California Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet | (0) | (22) | (284) | View Plans | ||
| Sonic | (0) | (11) | (11) | View Plans | ||
| Verizon | (0) | (24) | (723) | View Plans | ||
| AT&T | (0) | (107) | (924) | View Plans | ||
| XFINITY | (0) | (193) | (2164) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| Astound Broadband | (0) | (17) | (109) | View Plans | ||
| EarthLink | (0) | (2) | (12) | View Plans | ||
| Unwired | (0) | (1) | (1) | View Plans | ||
| Etheric Networks | (0) | (0) | (0) | View Plans |
Downtown San Mateo Internet Health Assessment
ISP Reports evaluates the technological infrastructure across the United States. This includes assessing a grade for ISP providers and infrastructure in the neighborhood and setting an index number for the digital connectivity of its residents. You can view the ISP Report Card and the Digital Connectivity Index for Downtown San Mateo below, including the metrics used and how Downtown San Mateo compares to the rest of San Mateo and nation.
| Metric
(hover for details)
|
Downtown San Mateo | California | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in Downtown San Mateo that have a Fiber internet connection available to their home. | 92.79% | 90.21% | 67.25% | ||
| Average Download SpeedThe maximum download speed most households can get on average. This is measured by availability in a block group and weighted by the population in that area. | 3,403 Mbps | 5,073 Mbps | 3,293 Mbps | ||
| Provider CountThe number of providers available for most people. This is a weighted average by block rather than a total for Downtown San Mateo. | 11.0 | 9.7 | 6.8 |
| Average Household SizeA larger household size in a neighborhood indicates that there will be a greater need for bandwidth due to simultaneous usage, multiple devices, and network congestion. | 2.2 | 2.7 | 2.7 | ||
| Work From Home PercentA higher percent of the population working from home indicates bandwidth requirements being more widely needed rather than consolidated to commercial portions of the city. | 23% | 22% | 14% | ||
| Households with DevicesA higher percentage of households with computing devices in the home indicates a higher level of infrastructure needed to support those households. | 99% | 98% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 96% | 96% | 90% | ||
| Households with BroadbandA higher percentage of households with a broadband connection (defined as speeds above 25 Mbps) indicates heavier usage needs within these households. | 88% | 85% | 75% | ||
| Broadband Usage vs. AvailabilityThis measures what percentage of households who have a broadband connection to their home actually have an active subscription to that service. | 88% | 85% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Downtown San Mateo ISP Report Card & Digital Connectivity Index
The ISP Report Card in Downtown San Mateo is A-, which is much better than other neighborhoods. The local demand for broadband internet connectivity in Downtown San Mateo is high with a score of 77 / 100 in our Digital Connectivity Index. This means that internet service providers operating in Downtown San Mateo have done a good job meeting the needs of its residents.
The Downtown San Mateo ISP Report Card evaluates the neighborhood on availability and speed metrics compared to other neighborhoods in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a neighborhood needs. Please see our ISP Report Card along with the Digital Connectivity Index above to evaluate how well the connectivity demand is met by the existing infrastructure.
96% of Downtown San Mateo households have an internet connection despite having 100.00% availability. 88% of households have fiber, cable, or DSL, 4% have satellite, 0% are still on dial-up, and 1% of households have internet but don’t pay for a subscription because it’s subsidized by the Affordable Connectivity Program.
As you can see in the table above, while 88% of households have a broadband connection such as fiber, cable or DSL available to their home, 88% subscribe to it. A very large amount of Downtown San Mateo residents are taking advantage of the available internet infrastructure.
For more details, please visit our ISP Report Card and Digital Connectivity Index pages.
How do Neighboring Neighborhoods Compare to Downtown San Mateo?
- ISP Report Card: B+
- Digital Connectivity Index: 82 / 100
- ISP Report Card: A
- Digital Connectivity Index: 74 / 100
- ISP Report Card: A
- Digital Connectivity Index: 90 / 100
- ISP Report Card: A
- Digital Connectivity Index: 80 / 100
- ISP Report Card: B
- Digital Connectivity Index: 78 / 100
- ISP Report Card: A+
- Digital Connectivity Index: 84 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 74 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 90 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 81 / 100
How Much Speed does a Downtown San Mateo Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in Downtown San Mateo is 2.2, which is smaller than the San Mateo average of 2.7 and smaller than the national average of 2.7. Downtown San Mateo's average household income is $144,849 which is about average for the San Mateo average of $162,622 and much higher than the national average of $90,606. Homes with fewer people living in them and with higher incomes tend to indicate a fairly average device usage pattern.
Downtown San Mateo also has 14% of its population enrolled in school between the 6th grade and college level, this is lower than the San Mateo average of 15%. Additionally, 23% of residents work from home, which is higher than the 22% of residents in San Mateo who work from home. This and other factors you can see above show us that the community of Downtown San Mateo has a very high need for internet connectivity and speeds.
Compared to the rest of the country, Downtown San Mateo households are much more technology-engaged. 99% of households have some sort of computing device, 87% have desktops or laptops in the home, and 97% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.
Which Fiber Internet Providers are Available in Downtown San Mateo?
Sonic Fiber in Downtown San Mateo, San Mateo, CA
Sonic offers Fiber service to 86.5% of Downtown San Mateo homes. Across the neighborhood, Sonic Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
EarthLink Fiber in Downtown San Mateo, San Mateo, CA
EarthLink offers Fiber service to 70.5% of Downtown San Mateo homes. Across the neighborhood, EarthLink Fiber has speeds up to 3,655 Mbps, with speeds from 1,000 Mpbs up to 5,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for EarthLink Fiber. EarthLink Fiber is rated about the same as other types of internet service available in Downtown San Mateo from EarthLink in terms of customer satisfaction.
AT&T Fiber in Downtown San Mateo, San Mateo, CA
AT&T offers Fiber service to 70.5% of Downtown San Mateo homes. Across the neighborhood, AT&T Fiber has speeds up to 3,655 Mbps, with speeds from 1,000 Mpbs up to 5,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for AT&T Fiber. AT&T Fiber is rated higher than other types of internet service available in Downtown San Mateo from AT&T in terms of customer satisfaction.
Astound Broadband Fiber in Downtown San Mateo, San Mateo, CA
Astound Broadband offers Fiber service to 20.8% of Downtown San Mateo homes. Across the neighborhood, Astound Broadband Fiber has speeds up to 1,500 Mbps
Which Cable Internet Providers are Available in Downtown San Mateo?
XFINITY Cable in Downtown San Mateo, San Mateo, CA
XFINITY from Comcast offers Cable service to 100.0% of Downtown San Mateo homes. Across the neighborhood, XFINITY Cable is the only type of service available from the company, with speeds up to 2,000 Mbps
Astound Broadband Cable in Downtown San Mateo, San Mateo, CA
Astound Broadband offers Cable service to 99.7% of Downtown San Mateo homes. Across the neighborhood, Astound Broadband Cable has speeds up to 1,500 Mbps
Which DSL Internet Providers are Available in Downtown San Mateo?
EarthLink DSL in Downtown San Mateo, San Mateo, CA
EarthLink offers DSL service to 93.5% of Downtown San Mateo homes. Across the neighborhood, EarthLink DSL has speeds up to 61 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 13 Mbps throughout the neighborhood. EarthLink DSL is rated the same as other types of internet service available in Downtown San Mateo from EarthLink in terms of customer satisfaction.
AT&T DSL in Downtown San Mateo, San Mateo, CA
AT&T offers DSL service to 93.5% of Downtown San Mateo homes. Across the neighborhood, AT&T DSL has speeds up to 61 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 13 Mbps throughout the neighborhood. AT&T DSL is rated about the same as other types of internet service available in Downtown San Mateo from AT&T in terms of customer satisfaction.
Astound Broadband DSL in Downtown San Mateo, San Mateo, CA
Astound Broadband offers DSL service to 4.3% of Downtown San Mateo homes. Across the neighborhood, Astound Broadband DSL has speeds up to 1,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Downtown San Mateo?
T-Mobile Home Internet Fixed Wireless in Downtown San Mateo, San Mateo, CA
T-Mobile Home Internet offers Fixed Wireless service to 100.0% of Downtown San Mateo homes. Across the neighborhood, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 93 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 18 Mbps throughout the neighborhood.
Etheric Networks Fixed Wireless in Downtown San Mateo, San Mateo, CA
Etheric Networks offers Fixed Wireless service to 99.7% of Downtown San Mateo homes. Across the neighborhood, Etheric Networks Fixed Wireless is the only type of service available from the company, with speeds up to 250 Mbps
Unwired Fixed Wireless in Downtown San Mateo, San Mateo, CA
Unwired offers Fixed Wireless service to 86.5% of Downtown San Mateo homes. Across the neighborhood, Unwired Fixed Wireless is the only type of service available from the company, with speeds up to 300 Mbps
EarthLink Fixed Wireless in Downtown San Mateo, San Mateo, CA
EarthLink offers Fixed Wireless service to 71.3% of Downtown San Mateo homes. Across the neighborhood, EarthLink Fixed Wireless has speeds up to 44 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 7.3 Mbps throughout the neighborhood.
AT&T Fixed Wireless in Downtown San Mateo, San Mateo, CA
AT&T offers Fixed Wireless service to 71.3% of Downtown San Mateo homes. Across the neighborhood, AT&T Fixed Wireless has speeds up to 44 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 7.3 Mbps throughout the neighborhood.
Verizon Fixed Wireless in Downtown San Mateo, San Mateo, CA
Verizon offers Fixed Wireless service to 35.8% of Downtown San Mateo homes. Across the neighborhood, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 730 Mbps, with speeds from 300 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 20 and as high as 75, with an average of 54 Mbps throughout the neighborhood.
Which ISP Should You Choose in Downtown San Mateo?
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 Downtown San Mateo is Sonic.
- The fastest internet provider should be EarthLink and AT&T. Considering speed for the money and reliability in speeds, Sonic may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Downtown San Mateo is T-Mobile Home Internet.
- AT&T, EarthLink, HughesNet, T-Mobile Home Internet, Viasat, and XFINITY from Comcast has the broadest coverage in Downtown San Mateo, and is most likely to cover your home. To find out exactly what's available at your home, please use our address search tool.
How does Downtown San Mateo compare to other cities with a similar population?
To see how Downtown San Mateo stacks up on the national level, it's useful to look at some other cities with similarly sized populations. Below you can see a list of these cities and how they compare to Downtown San Mateo's A- ISP Report Card and 77 / 100 Digital Connectivity Index.
- ISP Report Card: A-
- Digital Connectivity Index: 54 / 100
- ISP Report Card: A+
- Digital Connectivity Index: 89 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 74 / 100
- ISP Report Card: B
- Digital Connectivity Index: 82 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 94 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 68 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 94 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 87 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 74 / 100
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