Best Internet Providers in San Dimas, CA
All 7 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in San Dimas, CA
San Dimas has 7 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, Fixed Wireless, and DSL internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in San Dimas.
Ranks compare San Dimas with the 1,383 US suburban and regional cities (25,000 to 49,999 people), the tiers of our fastest-cities rankings.
The Best Internet in San Dimas, CA at a Glance
San Dimas Internet Providers, Ranked by Coverage, Speed and Customer Ratings
Spectrum
Connection
Customer Rating
Fiber
Cable
Frontier
Connection
Customer Rating
Fiber
DSL
EarthLink
Connection
Customer Rating
DSL
Fixed Wireless
AT&T
Connection
Customer Rating
DSL
Fixed Wireless
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 Dimas ratings may vary and are shown below.
Who is the Best Internet Provider in San Dimas, CA?
Spectrum is the highest-rated internet provider in San Dimas based on 455 California customer reviews, and T-Mobile Home Internet 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.
or call 1-877-411-1381
Which Providers are Available at my Home in San Dimas?
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.
Coverage map for each provider in San Dimas
- Frontier - fiber coverage map
- Spectrum - cable coverage map
- Verizon - fixed wireless coverage map
- GeoLinks - fixed wireless coverage map
- Spectrum - fiber coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
- AT&T - dsl coverage map
- EarthLink - dsl coverage map
- Frontier - dsl coverage map
How San Dimas Compares to Places Its Size
San Dimas's report card score is in the bottom 43% and its connectivity index is in the top 35%.
| Measure | San Dimas | Rank among US suburban and regional cities (25,000 to 49,999 people) | Los Angeles County | California | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 81.1% | bottom 48% | 75.3% | 62.4% | 71.5% | 25 places at 100.0% |
| Average top speed | 5,835 Mbps | top 17% | 4,064 Mbps | 3,834 Mbps | 3,486 Mbps | Hixson, TN (25,000 Mbps) |
| Providers at a typical address | 6.1 | bottom 25% | 7.7 | 8 | 7.1 | San Lorenzo, CA (13) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.8 | top 28% | 3.0 | 3.0 | 2.7 | Kiryas Joel, NY (5.1) |
| Workers who work from home | 17% | top 34% | 17% | 17% | 15% | Venice, CA (47%) |
| Homes with a computer, tablet or phone | 97% | top 32% | 97% | 97% | 96% | 16 places at 100% |
| Homes with internet | 91% | bottom 35% | 93% | 94% | 91% | 13 places at 99% |
| Homes on fiber, cable or DSL | 79% | bottom 49% | 78% | 79% | 76% | Burke, VA and Colleyville, TX and 3 more (94%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 88% | top 29% | 82% | 84% | 81% | University Park, TX (99%) |
| Median household income | $118,922 | top 26% | $100,015 | $111,728 | $93,246 | Scarsdale, NY ($244,191) |
| Residents in school (6th grade to college) | 19% | top 11% | 17% | 17% | 16% | Rexburg, ID (71%) |
Fiber reaches 81.1% of homes in San Dimas, against 75.3% across Los Angeles County and 62.4% across California. Households in San Dimas are larger than the US average (2.8 people against 2.7); 17% of workers work from home (US 15%); and the median household income is $118,922 (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 Dimas
Which Fiber Internet Providers are Available in San Dimas?
Frontier Fiber in San Dimas, CA
Availability:
77.2%
Customer Rating:
(119)
Avg. Download Speed
6,862 Mbps
Frontier Communications offers Fiber service to 77.2% of San Dimas homes. Across the city, Frontier Fiber has speeds up to 6,862 Mbps, with speeds from 5,000 Mpbs up to 7,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for Frontier Fiber. Frontier Fiber is rated about the same as other types of internet service available in San Dimas from Frontier in terms of customer satisfaction.
Spectrum Fiber in San Dimas, CA
Availability:
13.2%
Customer Rating:
(207)
Avg. Download Speed
1,000 Mbps
Spectrum offers Fiber service to 13.2% of San Dimas homes. Across the city, Spectrum Fiber has speeds up to 1,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in San Dimas?
T-Mobile Home Internet Fixed Wireless in San Dimas, CA
Availability:
89.5%
Customer Rating:
(342)
Avg. Download Speed
90 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 89.5% of San Dimas homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 90 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 city.
Verizon Fixed Wireless in San Dimas, CA
Availability:
87.9%
Customer Rating:
(362)
Avg. Download Speed
271 Mbps
Verizon offers Fixed Wireless service to 87.9% of San Dimas homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 271 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 19 Mbps throughout the city.
EarthLink Fixed Wireless in San Dimas, CA
Availability:
85.9%
Customer Rating:
(4)
Avg. Download Speed
40 Mbps
EarthLink offers Fixed Wireless service to 85.9% of San Dimas homes. Across the city, EarthLink Fixed Wireless has speeds up to 40 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 6.3 Mbps throughout the city.
AT&T Fixed Wireless in San Dimas, CA
Availability:
85.9%
Customer Rating:
(205)
Avg. Download Speed
40 Mbps
AT&T offers Fixed Wireless service to 85.9% of San Dimas homes. Across the city, AT&T Fixed Wireless has speeds up to 40 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 6.3 Mbps throughout the city.
GeoLinks Fixed Wireless in San Dimas, CA
Availability:
27.3%
Customer Rating:
(0)
Avg. Download Speed
846 Mbps
GeoLinks offers Fixed Wireless service to 27.3% of San Dimas homes. Across the city, GeoLinks Fixed Wireless is the only type of service available from the company, with speeds up to 846 Mbps, with speeds from 100 Mpbs up to 1,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for GeoLinks Fixed Wireless.
Which Cable Internet Providers are Available in San Dimas?
Spectrum Cable in San Dimas, CA
Availability:
92.6%
Customer Rating:
(1739)
Avg. Download Speed
1,000 Mbps
Spectrum offers Cable service to 92.6% of San Dimas homes. Across the city, Spectrum Cable has speeds up to 1,000 Mbps
Which DSL Internet Providers are Available in San Dimas?
Frontier DSL in San Dimas, CA
Availability:
4.8%
Customer Rating:
(58)
Avg. Download Speed
10 Mbps
Frontier Communications offers DSL service to 4.8% of San Dimas homes. Across the city, Frontier DSL has speeds up to 10 Mbps
EarthLink DSL in San Dimas, CA
Availability:
1.5%
Customer Rating:
(5)
Avg. Download Speed
34 Mbps
EarthLink offers DSL service to 1.5% of San Dimas homes. Across the city, EarthLink DSL has speeds up to 34 Mbps, with speeds from 25 Mpbs up to 50 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 5.0 and as high as 10, with an average of 6.7 Mbps throughout the city. EarthLink DSL is rated higher than other types of internet service available in San Dimas from EarthLink in terms of customer satisfaction.
AT&T DSL in San Dimas, CA
Availability:
1.5%
Customer Rating:
(304)
Avg. Download Speed
34 Mbps
AT&T offers DSL service to 1.5% of San Dimas homes. Across the city, AT&T DSL has speeds up to 34 Mbps, with speeds from 25 Mpbs up to 50 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 5.0 and as high as 10, with an average of 6.7 Mbps throughout the city. AT&T DSL is rated about the same as other types of internet service available in San Dimas from AT&T in terms of customer satisfaction.
Internet in San Dimas by Neighborhood and ZIP Code
San Dimas has 1 ZIP code with its own page. Each row links to that place’s page.
Neighborhoods in San Dimas
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|
ZIP codes in San Dimas
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 91773 | 34,685 | 86.6% | 5,879 Mbps | 6.1 | B | 82/100 |
How San Dimas Compares to Nearby Places
The 10 places nearest to San Dimas that have their own pages are all within 6 miles. Among them, Citrus has the most homes with fiber (99.4%) and Claremont the fewest (71.2%); San Dimas has 81.1%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| San Dimas (this page) | 37,779 | 81.1% | 5,835 Mbps | 6.1 | B | 78/100 |
| Pomona | 154,267 | 96.5% | 6,508 Mbps | 6.1 | B+ | 71/100 |
| West Covina | 104,328 | 87.6% | 5,339 Mbps | 5.8 | B | 81/100 |
| Covina | 67,693 | 91.6% | 4,774 Mbps | 6.6 | B+ | 75/100 |
| Glendora | 52,729 | 92.7% | 4,717 Mbps | 5.9 | B | 83/100 |
| Azusa | 51,248 | 84.6% | 4,398 Mbps | 6.1 | B | 74/100 |
| Claremont | 39,315 | 71.2% | 4,214 Mbps | 5.8 | B- | 79/100 |
| La Verne | 33,752 | 92.4% | 6,405 Mbps | 5.6 | B | 85/100 |
| Walnut | 30,033 | 82.0% | 5,608 Mbps | 5.9 | B | 84/100 |
| Vincent | 18,981 | 95.8% | 5,385 Mbps | 5.4 | B+ | 73/100 |
| Citrus | 7,537 | 99.4% | 5,060 Mbps | 6.1 | A- | 70/100 |
Who is the Fastest Internet Provider in San Dimas?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by Spectrum. On the other hand, based on data provided by the internet providers to the FCC, Frontier Communications 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 San Dimas
| Frontier Communications | 7,000 |
|---|---|
| Spectrum | 1,000 |
| GeoLinks | 1,000 |
| Verizon | 300 |
| Viasat | 100 |
| T-Mobile Home Internet | 100 |
| AT&T | 100 |
| EarthLink | 100 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in San Dimas. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for San Dimas Internet Providers
Based on 455 reviews from California internet customers, Spectrum is the best internet service provider for San Dimas residents. Spectrum was rated at an average of 3.27 out of 5 in our report for overall customer satisfaction. AT&T wins for second-place in California, with 3.34 out of 5 stars and 85.9% coverage in San Dimas.
At a national level, based on 4350 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.02 out of 5.
Local, State, and National Ratings for all San Dimas Internet Providers
The table below shows average customer ratings from customers in San Dimas, California, and customers throughout the country.
| ISP / Tech Type | San Dimas Overall | California Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Spectrum | (2) | (228) | (1949) | View Plans | ||
| AT&T | (0) | (119) | (1051) | View Plans | ||
| EarthLink | (0) | (2) | (15) | View Plans | ||
| HughesNet | (0) | (1) | (25) | View Plans | ||
| T-Mobile Home Internet | (0) | (27) | (342) | View Plans | ||
| Verizon | (0) | (28) | (816) | View Plans | ||
| Viasat | (0) | (1) |  (12) | View Plans | ||
| Frontier |  (1) | (51) | (177) | View Plans | ||
| GeoLinks | (0) | (0) | (0) | View Plans |
Customer Ratings for Internet Provider Speeds in San Dimas
Based on data reported by San Dimas ISPs to the FCC, the fastest speeds in the city are available through Frontier Communications. The company offers speeds up to 7,000 Mbps in San Dimas. Therefore, the average customer can get up to 6,725 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
However, actual customers rated their satisfaction with internet speed highest with Spectrum. This indicates Spectrum reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | San Dimas Speed | California Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Spectrum |  (2) | (228) | (1949) | View Plans | ||
| Frontier | (1) | (51) | (177) | View Plans | ||
| AT&T | (0) | (119) | (1051) | View Plans | ||
| EarthLink | (0) |  (2) | (15) | View Plans | ||
| HughesNet | (0) | (1) | (25) | View Plans | ||
| T-Mobile Home Internet | (0) | (27) | (342) | View Plans | ||
| Verizon | (0) | (28) | (816) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| GeoLinks | (0) | (0) | (0) | View Plans |
Who is the Cheapest Internet Provider in San Dimas?
Of the providers in San Dimas, customers rate AT&T the best for price. Data comes from customers rating their satisfaction with pricing: in San Dimas 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.
AT&T is rated 3.22 out of 5 for price, which is lower than the average across all internet providers in the country. EarthLink is rated second for affordability, with an average price rating of 2.00 out of 5.
The table below shows how customers in San Dimas, California, and the United States rated the affordability of their internet service.
Rated Affordability in San Dimas
| ISP / Tech Type | San Dimas Affordability | California Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| AT&T | (0) | (119) | (1051) | View Plans | ||
| EarthLink | (0) | (2) | (15) | View Plans | ||
| HughesNet | (0) | (1) | (25) | View Plans | ||
| T-Mobile Home Internet | (0) | (27) | (342) | View Plans | ||
| Verizon | (0) | (28) | (816) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| Spectrum | (2) | (228) | (1949) | View Plans | ||
| Frontier | (1) | (51) | (177) | View Plans | ||
| GeoLinks | (0) | (0) | (0) | View Plans |
Customer Reviews for Internet Service Providers in California
Customer Reviews
Trace R.
Frontier Fiber
March 16, 2026 The price has gone up a lot since my sign up. I cannot move to a lower speed for a lower price, and I don't get any promotions. They have me held to their plan, because they had to change the connection to my house for fiber. They told me I can get $10 credit for auto pay, but only give me $5. I have been on the phone with billing and have been told many times this would be corrected, but it has not be done.
Ehsan K.
Spectrum Cable
June 28, 2023 Spectrum offers up some fairly good prices and great speeds. Given that we are bundled with phone and TV as well, we were able to put together a fairly good package that suits everyone's needs. At times we would experience speeds that were slower than what was originally advertised or promised to us. However, with their good customer service, we were able to fix that problem. They are fairly timely when it comes to updating the modem. Service calls have never been an issue as they are punctual and detailed as to when they will be visiting.
A California customer
Spectrum Cable
June 20, 2023 Spectrum has been pretty decent in speeds and reliability and customer service people are usually pretty helpful but it takes too long to get help if they have to come considering the reliance on it for my job, security, everything and they always want to come out instead of trying harder to fix it remotely unless you push them. They cost too much and it goes up every year as well.
Steve
ting Fiber
November 13, 2026 Slow, 1/10th the speed they advertised
Robert
Verizon Fixed Wireless
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.
Rate your provider
Share your experience to help others in your area choose.
Verified customer: we detected your connection is on this provider.
Reviews are independent and unedited. Published after a quick spam check.
Which ISP Should You Choose in San Dimas?
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 Dimas is Spectrum.
- The fastest internet provider should be Frontier Communications. Considering speed for the money and reliability in speeds, Spectrum may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in San Dimas is AT&T.
- Viasat, Spectrum, and HughesNet has the broadest coverage in San Dimas, available to 92.6% 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.