Internet providers in San Dimas, CA
San Dimas is a city in California with about 34,099 residents and roughly 14,163 residential locations that internet providers can report on. The table below compares the providers that report service here.
Compare internet providers in San Dimas, CA
Share of residential locations in San Dimas where each provider reports service, from the FCC National Broadband Map (data as of December 31, 2025). Availability depends on your exact address.
| # | Provider | Technology (varies by address) | Locations covered | |
|---|---|---|---|---|
| 1 | Spectrum | Fiber, Cable | 91% | |
| 2 | T-Mobile Home Internet | Fixed wireless | 71% | |
| 3 | Verizon | Fiber, Fixed wireless | 65% | Check availability |
| 4 | AT&T | Fiber, DSL, Fixed wireless | 63% | Check availability |
| 5 | Frontier | Fiber, DSL | 60% | |
| 6 | California Internet | Fixed wireless | 5% |
Satellite internet
| 1 | HughesNet | Satellite | 99%+ | |
| 2 | Viasat | Satellite | 99%+ | |
| 3 | Starlink | Satellite | 99%+ |
Satellite service is available at nearly every address but typically has higher latency than wired options.
Provider-reported coverage does not guarantee service or speeds at a specific address. Some "Check availability" links are affiliate links; we may earn a commission at no cost to you. How we make money.
What to know about internet in San Dimas
Spectrum reports service to the most residential locations in San Dimas, about 91%. 5 providers report coverage of at least half of locations (Spectrum, T-Mobile Home Internet, Verizon, AT&T, and Frontier), so the market looks competitive. T-Mobile Home Internet offers fixed wireless home internet, an option if you prefer no cable or fiber installation.
What technologies are available in San Dimas?
Fiber is widely available: about 62% of locations in San Dimas can get it. Gigabit-class service (1,000 Mbps down) is reported for about 78% of locations. Fixed wireless home internet is reported for about 83% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in San Dimas that providers report they can serve. City-level figures, not your address.
San Dimas at a glance
About 89% of households in San Dimas have a broadband subscription, 4 points below the California average of 92%.
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023).
Internet providers in places near San Dimas
- La Verne, CA (2 mi)
- Glendora, CA (3 mi)
- Pomona, CA (4 mi)
- Covina, CA (4 mi)
- Claremont, CA (6 mi)
- Walnut, CA (6 mi)
- Azusa, CA (6 mi)
- Montclair, CA (7 mi)
- West Covina, CA (7 mi)
- Diamond Bar, CA (7 mi)
- Valinda, CA (8 mi)
- Upland, CA (9 mi)
- Duarte, CA (9 mi)
- Baldwin Park, CA (9 mi)
- La Puente, CA (10 mi)
- West Puente Valley, CA (10 mi)
- Rowland Heights, CA (11 mi)
- Monrovia, CA (11 mi)
- Hacienda Heights, CA (12 mi)
- Chino Hills, CA (12 mi)
Frequently asked questions
Is fiber internet available in San Dimas?
Yes, in part. About 62% of residential locations in San Dimas can get fiber, 91% can get cable, and about 78% can get gigabit-class speeds, per FCC data. Availability depends on your exact address.
Which internet provider has the widest coverage in San Dimas?
Spectrum reports service to about 91% of residential locations in San Dimas, the most of any provider, per FCC data. Availability still depends on your address.
How many internet providers serve San Dimas?
6 providers report service to at least 2% of locations in San Dimas, and 5 cover at least half. Satellite (HughesNet, Viasat, Starlink) is also available nearly everywhere.
What is the difference between fiber, cable and DSL?
Fiber offers the fastest and most consistent speeds, cable is widely available with high download speeds, and DSL runs over phone lines and is usually slower. See our guide for details.
What internet speed do I need in San Dimas?
Most households are well served by 100–300 Mbps. Heavy streaming, gaming or many connected devices may benefit from 500 Mbps or more.
Check your exact address
Coverage for a whole community cannot tell you what is available at your door. Enter your ZIP code, then confirm with each provider.
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