In San Carlos there are 4 residential internet providers covering 97.82% of the city. The average home can get speeds up to 84 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
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4 Internet Service Providers in San Carlos
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in San Carlos are not shown.
San Carlos Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Availability maps for all providers in San Carlos
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
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Internet service is available in 97.82% of San Carlos. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is SCATUI. Now you can call companies in San Carlos with more confidence that they might be available.
How fast are internet speeds in San Carlos?
The map below shows maximum internet speeds by area in San Carlos.
Internet Speed Key
The average San Carlos home can get up to 84 Mbps on their internet plan. For most people, the fastest download speed in the city is 300 Mbps, which 3.94% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, less than 1% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in San Carlos.
Internet speeds tend to be faster in the southeast parts of San Carlos, and slower in the west areas of the city.
What type of internet should I choose in San Carlos?
The fastest internet for you may vary based on where in San Carlos you live. If speed is your main concern, fiber will be the fastest internet in the city.
- Fiber is the fastest internet type for 62.41% of San Carlos homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for 31.46%.
- Fixed wireless is fastest for 3.94%.
- Satellite internet may be the only option for 2.18% of San Carlos homes.
Internet Market Health in San Carlos
Internet Competition Key
The map shows how competitive the San Carlos internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in San Carlos based on what connections the average home has availabile:
- Average number of internet service providers to a home: 1.4 (very unhealthy)
- Average types of service (fiber, cable, DSL, etc): 1.4 (very unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 1.4 (very unhealthy)
Overall, competition is very unhealthy.
San Carlos internet customers have the ability to buy internet service from 1 to 2 different providers, depending on where they live. For different types of service, San Carlos homes have between 1 and 2 options. The type(s) of service available are dsl, fiber, and fixed wireless, though these may vary depending on the region within the city.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. San Carlos internet customers who want faster speeds have between 0 and 2 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, San Carlos badly needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in San Carlos, along with details on where in San Carlos and at what speeds.
SCATUI DSL in San Carlos, AZ
SCATUI DSL coverage
About 70.64%, or 3,332 people, have SCATUI DSL internet available to them in the city. The company covers the entire San Carlos area. SCATUI is a small internet service provider internet service providers in the US, with internet service available in much of San Carlos.
SCATUI DSL download speeds
SCATUI is the slowest when comparing download speeds to all other internet providers in San Carlos. Versus other DSL providers in the area, SCATUI DSL is the fastest. There are 2 different maximum speeds throughout San Carlos. The fastest plan anyone in San Carlos can order from SCATUI goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for San Carlos customers is up to 25 Mbps.
Show all download speeds
- 97.6% up to 25.0 Mbps
- 2.4% up to 10.0 Mbps
SCATUI DSL upload speeds
In San Carlos download speeds tend to be faster than than upload speeds for SCATUI DSL. Compared to other ISPs, SCATUI is the slowest where upload speeds are concerned, and the fastest compared to other San Carlos DSL providers. SCATUI offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in San Carlos is up to 3.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, SCATUI customers can get speeds up to 3.0 Mbps.
Show all upload speeds
- 97.6% up to 3.0 Mbps
- 2.4% up to 1.0 Mbps
SCATUI Fiber in San Carlos, AZ
SCATUI fiber coverage
About 66.36%, or 3,130 people, have SCATUI fiber internet available to them in the city. The company covers the central, north, southwest, south, southeast, northwest, east, and west San Carlos area. SCATUI is a small internet service provider internet service providers in the US, with internet service available in much of San Carlos.
SCATUI fiber download speeds
SCATUI is average when comparing download speeds to all other internet providers in San Carlos. Versus other fiber providers in the area, SCATUI fiber is the fastest. There are no different maximum speeds throughout San Carlos. The fastest plan anyone in San Carlos can order from SCATUI goes up to 100 Mbps, and all San Carlos customers can get this speed.
Show all download speeds
- 100.0% up to 100.0 Mbps
SCATUI fiber upload speeds
In San Carlos download speeds tend to be faster than than upload speeds for SCATUI fiber. Compared to other ISPs, SCATUI is the fastest where upload speeds are concerned, and the fastest compared to other San Carlos fiber providers. SCATUI offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in San Carlos is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Verizon Fixed Wireless in San Carlos, AZ
Verizon fixed wireless coverage
About 3.94%, or 186 people, have Verizon fixed wireless internet available to them in the city. The company covers the southeast San Carlos area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of San Carlos.
Verizon fixed wireless download speeds
Verizon is the fastest when comparing download speeds to all other internet providers in San Carlos. Versus other fixed wireless providers in the area, Verizon fixed wireless is the fastest. There are no different maximum speeds throughout San Carlos. The fastest plan anyone in San Carlos can order from Verizon goes up to 300 Mbps, and all San Carlos customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In San Carlos download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is average where upload speeds are concerned, and the fastest compared to other San Carlos fixed wireless providers. Verizon offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in San Carlos is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
San Carlos Internet by Area
This information is most helpful to those looking for homes or considering moving to San Carlos or any of the areas nearby.
How does internet in San Carlos compare to the rest of Arizona?
Internet speeds in San Carlos are much slower versus the average speeds in Arizona: 2,392 Mbps in Arizona versus 84 Mbps in the city. The state has similar internet availability compared to the city. Average internet coverage in Arizona is 98.72% versus 97.82% in San Carlos.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around San Carlos are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does internet service look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Peridot, AZ: more internet coverage, faster speeds
- Little Acres, AZ: less internet coverage, faster speeds
- Globe, AZ: more internet coverage, faster speeds
- Calva, AZ: less internet coverage, slower speeds
- Midland City, AZ: less internet coverage, faster speeds
- Claypool, AZ: more internet coverage, faster speeds
- Miami, AZ: less internet coverage, faster speeds
- Superior, AZ: more internet coverage, faster speeds
- Queen Valley, AZ: less internet coverage, faster speeds
- Gold Canyon, AZ: more internet coverage, faster speeds
Cities with Similar Populations
- Lake Delton, WI: more internet coverage, faster speeds
- Lakebay, WA: more internet coverage, faster speeds
- Lake Tansi, TN: more internet coverage, faster speeds
- Lake Placid, NY: more internet coverage, faster speeds
- Lake Park, NC: more internet coverage, faster speeds
- Lake Panasoffkee, FL: more internet coverage, faster speeds
- Lake Ozark, MO: more internet coverage, faster speeds
- Lake Odessa, MI: more internet coverage, faster speeds
- Lake Norman of Catawba, NC: more internet coverage, faster speeds
- Lake Montezuma, AZ: more internet coverage, faster speeds