Internet providers in Martinez, CA
Martinez is a city in California with about 36,926 residents and roughly 16,142 residential locations that internet providers can report on. The table below compares the providers that report service here.
Compare internet providers in Martinez, CA
Share of residential locations in Martinez 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 | Xfinity | Cable | 99% | |
| 2 | AT&T | Fiber, DSL, Fixed wireless | 87% | Check availability |
| 3 | Unwired | Fixed wireless | 76% | |
| 4 | T-Mobile Home Internet | Fixed wireless | 75% | |
| 5 | Verizon | Fiber, Fixed wireless | 60% | Check availability |
| 6 | Astound Broadband | Fiber, Cable | 40% |
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 Martinez
Xfinity reports service to the most residential locations in Martinez, about 99%. 5 providers report coverage of at least half of locations (Xfinity, AT&T, Unwired, T-Mobile Home Internet, and Verizon), so the market looks competitive. Unwired and T-Mobile Home Internet offer fixed wireless home internet, an option if you prefer no cable or fiber installation.
What technologies are available in Martinez?
Fiber reaches about 41% of locations in Martinez, so it is available in parts of the area but not everywhere. Gigabit-class service (1,000 Mbps down) is reported for about 93% of locations. DSL is still reported for about 69% of locations, which can be a fallback where fiber and cable do not reach. Fixed wireless home internet is reported for about 97% of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in Martinez that providers report they can serve. City-level figures, not your address.
Martinez at a glance
About 96% of households in Martinez have a broadband subscription, 3 points above the California average of 92%.
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023).
Internet providers in places near Martinez
- Pleasant Hill, CA (4 mi)
- Benicia, CA (6 mi)
- Contra Costa Centre, CA (6 mi)
- Concord, CA (6 mi)
- Lafayette, CA (7 mi)
- Walnut Creek, CA (8 mi)
- Orinda, CA (9 mi)
- Bay Point, CA (9 mi)
- Hercules, CA (10 mi)
- El Sobrante, CA (10 mi)
- Moraga, CA (11 mi)
- Vallejo, CA (11 mi)
- Pinole, CA (11 mi)
- Alamo, CA (11 mi)
- El Cerrito, CA (12 mi)
- Pittsburg, CA (12 mi)
- San Pablo, CA (13 mi)
- Albany, CA (13 mi)
- Berkeley, CA (14 mi)
- Piedmont, CA (14 mi)
Frequently asked questions
Is fiber internet available in Martinez?
Yes, in part. About 41% of residential locations in Martinez can get fiber, 99% can get cable, and about 93% can get gigabit-class speeds, per FCC data. Availability depends on your exact address.
Which internet provider has the widest coverage in Martinez?
Xfinity reports service to about 99% of residential locations in Martinez, the most of any provider, per FCC data. Availability still depends on your address.
How many internet providers serve Martinez?
6 providers report service to at least 2% of locations in Martinez, 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 Martinez?
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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