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#1 Recommended Plan
AT&T 
Speeds Up To300 Mbps*In rare cases, if your usage is contributing to congestion on the network, AT&T will greatly reduce your speed for a min. of 30 min.Connection: IPBB, 5G InternetAvailability: 84.7%Why AT&T? AT&T Internet Air makes buying internet easy for customers by offering one plan with straightforward pricing and reliable 5G speeds. -
Spectrum 
Speeds Up To2 GbpsSpeeds up to 2G in Select Markets.Speeds up to 2G in Select Markets.Connection: CableAvailability: 95.7% -
EarthLink 
Speeds Up To100 MbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: DSLAvailability: 100% -
#1 Satellite Plan
Starlink 
Speeds Up To400 MbpsSpeeds referenced are maximum available speeds, are not guaranteed, and will be slower during times of congestion.Speeds referenced are maximum available speeds, are not guaranteed, and will be slower during times of congestion.Connection: SatelliteAvailability: 100%Why Starlink? Starlink offers a true high-speed alternative to traditional internet providers with easy self-installation, no contracts, and no upfront hardware costs in select areas. -
Viasat 
Speeds Up To150 MbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: SatelliteAvailability: 100% -
Frontier 
Speed Range200 Mbps - 7 GbpsNot all internet speeds available in all areas. Real-world speeds are impacted by multiple factors and average speeds may be lower than advertised speeds.Not all internet speeds available in all areas. Real-world speeds are impacted by multiple factors and average speeds may be lower than advertised speeds.Connection: Fiber, DSLAvailability: 71.9%San Dimas speed tests confirm high speeds for Frontier -
T-Mobile 
Speed Range170 Mbps - 498 MbpsRely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 170 Mbps – 498 Mbps. 25% of our customers see speeds below and 25% see speeds above these ranges. T-Mobile Home Internet is delivered via 5G cellular network and speeds vary due to factors affecting cellular networks. See https://t-mobile.com/OpenInternet for additional details.Rely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 170 Mbps – 498 Mbps. 25% of our customers see speeds below and 25% see speeds above these ranges. T-Mobile Home Internet is delivered via 5G cellular network and speeds vary due to factors affecting cellular networks. See https://t-mobile.com/OpenInternet for additional details.Connection: 5G InternetAvailability: 81.3% -
Mint Mobile 
Speed Range133 Mbps - 415 MbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: 5G InternetAvailability: 83.4% -
Verizon 
Speeds Up To300 MbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: 5G InternetAvailability: 44% -
XNET WiFi 
Speeds Up To2 GbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: Fixed WirelessAvailability: 66.2% -
Hughesnet 
Speeds Up To50 MbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: SatelliteAvailability: 100%
Internet Providers in San Dimas, CA
Refine your search for better results:
Popular San Dimas Internet Deals
| Provider | Featured deal |
|---|---|
| AT&T | Get up to a $400 Reward Card with purchase of AT&T Fiber! Redemption req’d. |
| Spectrum | Get Spectrum Internet® with a free modem, free antivirus software and no data caps! |
| Starlink | Get fast and flexible satellite internet from Starlink for just $55 per month! |
| Viasat | Get $30 off for your first 3 months! Price shown includes promotion; Get $30/mo. off for the first 3 months. For new customers only. You must mention this offer when ordering service to receive the discount. |
| Frontier | Get the Frontier Fiber 500 plan for as low as $29.99 per month when you bundle with Verizon Mobile! * w/ Auto Pay & Paperless Bill. Wi-Fi, actual & average speeds vary. One-time charges apply. In select areas where available. |
San Dimas Home Internet Providers
| Provider | Plans starting at | Speeds up to | Connections |
|---|---|---|---|
| Frontier | $29.99/mo Prices may vary depending on the plan. | 200 Mbps - 7 Gbps Not all internet speeds available in all areas. Real-world speeds are impacted by multiple factors and average speeds may be lower than advertised speeds. | Fiber, DSL |
| Spectrum | $30/mo Prices may vary depending on the plan. | 2 Gbps Speeds up to 2G in Select Markets. | Cable |
| Mint Mobile | $30/mo Prices may vary depending on the plan. | 133 Mbps - 415 Mbps Not all internet speeds available in all areas. | 5G Internet |
| Verizon | $35/mo Prices may vary depending on the plan. | 300 Mbps Not all internet speeds available in all areas. | 5G Internet |
| Hughesnet | $39.99/mo Prices may vary depending on the plan. | 50 Mbps Not all internet speeds available in all areas. | Satellite |
| AT&T | $40/mo Price is per month, plus taxes. Price after discounts: $13/mo w/elig wireless svc. and $5/mo w/elig Autopay & Paperless bill. Discounts start w/in 2 bills. | 300 Mbps In rare cases, if your usage is contributing to congestion on the network, AT&T will greatly reduce your speed for a min. of 30 min. | IPBB, 5G Internet |
| T-Mobile | $50/mo Prices may vary depending on the plan. | 170 Mbps - 498 Mbps Rely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 170 Mbps – 498 Mbps. 25% of our customers see speeds below and 25% see speeds above these ranges. T-Mobile Home Internet is delivered via 5G cellular network and speeds vary due to factors affecting cellular networks. See https://t-mobile.com/OpenInternet for additional details. | 5G Internet |
| Starlink | $55/mo Prices may vary depending on the plan. | 400 Mbps Speeds referenced are maximum available speeds, are not guaranteed, and will be slower during times of congestion. | Satellite |
| XNET WiFi | $65/mo Prices may vary depending on the plan. | 2 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
| Viasat | $69.99/mo Price shown includes promotion; Get $30/mo. off for first 3 months. For new customers only. You must mention this offer when ordering service to receive the discount. | 150 Mbps Not all internet speeds available in all areas. | Satellite |
Best Internet Providers in San Dimas, CA
Frontier is the best overall internet provider in San Dimas. Frontier delivers symmetrical speeds up to 7 Gbps over a reliable fiber network covering 71.9% of the city. Plans start at $29.99 per month. If fiber has not reached your neighborhood, Spectrum is an excellent cable alternative available to 95.6% of the area.
| Provider | Why they're great | Who they're great for |
|---|---|---|
| AT&T | Easy installation | Customers who want to skip the technician and get online in minutes will love the simple plug-and-play setup provided by AT&T Internet Air. |
| Spectrum | No annual contracts | Spectrum is a smart choice for renters and flexible households who want high-speed internet without being locked into a long-term commitment. |
| Frontier | Fastest provider | Frontier is a perfect match for hardcore gamers and busy households that demand lag-free performance and extreme internet speeds. |
| Verizon | Excellent bundle savings | Current Verizon wireless customers can slash their bills and maximize their savings by combining their mobile plan with Verizon 5G Home Internet. |
| Starlink | Widely available | Homes off the beaten path reaching remote locations that traditional internet networks ignore will find the ultimate solution in Starlink. |
San Dimas Cheapest Internet Plans
EarthLink is the cheapest internet provider in San Dimas. Budget seekers can connect for just [price-low p="ear-dsl"] per month. EarthLink covers 100.0% of the city, delivering speeds up to 100 Mbps. However, residents seeking unmatched value should consider Frontier, offering incredibly fast fiber plans starting at $29.99 per month.
| Provider | Plan name | Price | Speeds up to |
|---|---|---|---|
| Frontier | Fiber 200 | $29.99/mo Prices may vary depending on the plan. | 200 Mbps Not all internet speeds available in all areas. Real-world speeds are impacted by multiple factors and average speeds may be lower than advertised speeds. |
| Spectrum | Spectrum Internet® Advantage | $30/mo Prices may vary depending on the plan. | 100 Mbps Speeds up to 2G in Select Markets. |
| Mint Mobile | 3-month w/ Mint Phone Plan | $30/mo Prices may vary depending on the plan. | 415 Mbps Not all internet speeds available in all areas. |
| Verizon | Verizon Home Internet Lite | $35/mo Prices may vary depending on the plan. | 25 Mbps Not all internet speeds available in all areas. |
| Viasat | Viasat Essentials | $39.99/mo Price shown includes promotion; Get $30/mo. off for first 3 months. For new customers only. You must mention this offer when ordering service to receive the discount. | 50 Mbps Not all internet speeds available in all areas. |
Fastest Internet Providers in San Dimas, CA
Frontier is the fastest internet provider in San Dimas. Power users can leverage Frontier fiber for massive symmetrical speeds up to 7 Gbps. These ultra-fast tiers cover 71.9% of the area. Spectrum offers a great cable alternative with speeds up to 2 Gbps, but Frontier easily wins the speed category with vastly superior uploads.
| Provider | Speeds up to | Connection type |
|---|---|---|
| Frontier | 200 Mbps - 7 Gbps Not all internet speeds available in all areas. Real-world speeds are impacted by multiple factors and average speeds may be lower than advertised speeds. | Fiber |
| Spectrum | 2 Gbps Speeds up to 2G in Select Markets. | Cable |
| XNET WiFi | 2 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
| T-Mobile | 170 Mbps - 498 Mbps Rely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 170 Mbps – 498 Mbps. 25% of our customers see speeds below and 25% see speeds above these ranges. T-Mobile Home Internet is delivered via 5G cellular network and speeds vary due to factors affecting cellular networks. See https://t-mobile.com/OpenInternet for additional details. | 5G Internet |
| Mint Mobile | 133 Mbps - 415 Mbps Not all internet speeds available in all areas. | 5G Internet |
Compare Top Providers in Your Area
- AT&T Internet vs. Frontier
- AT&T Internet vs. Spectrum
- AT&T Internet vs. T-Mobile 5G Home Internet
- AT&T Internet vs. Verizon 5G Home Internet
- EarthLink vs. AT&T Internet
- EarthLink vs. Spectrum
- Frontier vs. EarthLink
- Hughesnet vs. Viasat Internet
- Hughesnet vs. T-Mobile 5G Home Internet
- Hughesnet vs. Verizon 5G Home Internet
- Spectrum vs. Frontier
- Spectrum vs. T-Mobile 5G Home Internet
Check Your Current Speed
Internet Availability in San Dimas, CA
Spectrum offers the most widespread internet availability in San Dimas. Spectrum covers 95.6% of the city, becoming the most accessible high-speed choice. Spectrum packages begin at $30 per month with robust speeds up to 2 Gbps. Although EarthLink DSL reaches 100.0% of the area, Spectrum delivers far greater performance.
| Connection type | Provider with most coverage | San Dimas availability | Starting price |
|---|---|---|---|
| Satellite | Starlink | 100% | $55/mo |
| Cable | Spectrum | 95.6% | $30/mo |
| 5G Internet | AT&T Internet Air | 84.7% | $40/mo |
| Fiber | Frontier | 71.9% | $29.99/mo |
| Fixed Wireless | XNET WiFi | 66.2% | $65/mo |
| DSL | AT&T Internet | 0.2% | $60/mo |
San Dimas Internet Stats
| Average internet monthly cost | Available speed ranges | Available price range | Available connection types |
|---|---|---|---|
| $67.75 | 10 Mbps - 7 Gbps | $20/mo - $175/mo | 5G Internet, Cable, DSL, Fiber, Fixed Wireless, Satellite |
Internet Coverage Map and Store Locations for San Dimas, California
Methodology
Our provider rankings rely on a rigorous, data-driven framework evaluating over 100 million rows of FCC data to bring transparency to local internet options. We track 8,000+ active plans from 2,000+ providers to cut through marketing jargon. We weigh technical factors against real-world experiences to match you with the best connections actually available at your address:
- Tested Technology: We utilize a fiber-first ranking system, prioritizing high-performance, structurally sound technologies (like fiber and cable) over slower legacy connections.
- Realistic Coverage: We filter out "ghost ISPs" with near-zero availability and actively flag providers that only cover a fraction of neighborhoods, ensuring you don't waste time on unavailable options.
- Transparent Pricing: We track base rates and downgrade providers that rely on hidden fees or sudden price hikes, exposing the true long-term cost beyond initial marketing promotions.
- Verified Speeds: We look beyond deceptive "up to" marketing claims to evaluate the actual download and upload speeds delivered, prioritizing the balanced, symmetrical performance necessary for seamless video calls and heavy streaming.
- User-Driven Personalization: We don't just look at the tech; we look at what people actually prefer. By analyzing millions of local connections, user reviews on downtime, and validated J.D. Power scores, we tailor our rankings to highlight the providers proven to satisfy users in your area.
For a complete breakdown of our scoring weights, independent research, and editorial standards, view our full Methodology page.
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Data valid as of 09/06/2026