In Castle Garden there are 10 residential internet providers covering 100.00% of the city. The average home can get speeds up to 1,276 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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10 Internet Service Providers in Castle Garden
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 Castle Garden are not shown.
Castle Garden 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 Castle Garden
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.
Please note some providers will take longer to load than others
Internet service is available in 100.00% of Castle Garden. 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 XFINITY. Now you can call companies in Castle Garden with more confidence that they might be available.
How fast are internet speeds in Castle Garden?
The map below shows maximum internet speeds by area in Castle Garden.
Internet Speed Key
The average Castle Garden home can get up to 1,276 Mbps on their internet plan. For most people, the fastest download speed in the city is 2,000 Mbps, which 57.41% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 42.59% of homes can only purchase plans up to 300 Mbps. See the internet provider details below for info about their speed and coverage in Castle Garden.-->
What type of internet should I choose in Castle Garden?
The fastest internet for you may vary based on where in Castle Garden you live. If speed is your main concern, cable will be the fastest internet in the city.
- Fiber is the fastest internet type for less than 1% of Castle Garden homes.
- Cable is fastest for 57.41% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 42.59%.
- Satellite internet may be the only option for less than 1% of Castle Garden homes.
Internet Market Health in Castle Garden
Internet Competition Key
The map shows how competitive the Castle Garden 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 Castle Garden based on what connections the average home has availabile:
- Average number of internet service providers to a home: 6.7 (very healthy)
- Average types of service (fiber, cable, DSL, etc): 2.1 (unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 6.7 (very healthy)
Overall, competition is healthy.
Castle Garden internet customers have the ability to buy internet service from 5 to 8 different providers, depending on where they live. For different types of service, Castle Garden homes have between 1 and 3 options. The type(s) of service available are fixed wireless, dsl, and cable, 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 similar. Castle Garden internet customers who want faster speeds have between 5 and 8 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, Castle Garden is doing better than most.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in Castle Garden, along with details on where in Castle Garden and at what speeds.
XFINITY from Comcast Cable in Castle Garden, CA
XFINITY cable coverage
About 57.41%, or 31 people, have XFINITY cable internet available to them in the city. The company covers the entire Castle Garden area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Castle Garden.
XFINITY from Comcast cable download speeds
XFINITY is the fastest when comparing download speeds to all other internet providers in Castle Garden. Versus other cable providers in the area, XFINITY cable is the fastest. There are no different maximum speeds throughout Castle Garden. The fastest plan anyone in Castle Garden can order from XFINITY goes up to 2,000 Mbps, and all Castle Garden customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
XFINITY from Comcast cable upload speeds
In Castle Garden download speeds tend to be faster than than upload speeds for XFINITY cable. Compared to other ISPs, XFINITY is above average where upload speeds are concerned, and the fastest compared to other Castle Garden cable providers. XFINITY offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castle Garden is up to 250 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 250.0 Mbps
AT&T DSL in Castle Garden, CA
AT&T DSL coverage
About 57.41%, or 31 people, have AT&T DSL internet available to them in the city. The company covers the entire Castle Garden area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Castle Garden.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Castle Garden. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are no different maximum speeds throughout Castle Garden. The fastest plan anyone in Castle Garden can order from AT&T goes up to 75 Mbps, and all Castle Garden customers can get this speed.
Show all download speeds
- 100.0% up to 75.0 Mbps
AT&T DSL upload speeds
In Castle Garden download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and one of the fastest compared to other Castle Garden DSL providers. AT&T offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castle Garden is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
EarthLink DSL in Castle Garden, CA
EarthLink DSL coverage
About 57.41%, or 31 people, have EarthLink DSL internet available to them in the city. The company covers the entire Castle Garden area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Castle Garden.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Castle Garden. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are no different maximum speeds throughout Castle Garden. The fastest plan anyone in Castle Garden can order from EarthLink goes up to 75 Mbps, and all Castle Garden customers can get this speed.
Show all download speeds
- 100.0% up to 75.0 Mbps
EarthLink DSL upload speeds
In Castle Garden download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the fastest compared to other Castle Garden DSL providers. EarthLink offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castle Garden is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
Ayera Technologies Fixed Wireless in Castle Garden, CA
Ayera Technologies fixed wireless coverage
About 100.00%, or 54 people, have Ayera Technologies fixed wireless internet available to them in the city. The company covers the entire Castle Garden area. Ayera Technologies is a large internet service provider internet service providers in the US, with internet service available in every corner of Castle Garden.
Ayera Technologies fixed wireless download speeds
Ayera Technologies is above average when comparing download speeds to all other internet providers in Castle Garden. Versus other fixed wireless providers in the area, Ayera Technologies fixed wireless is the fastest. There are 2 different maximum speeds throughout Castle Garden. The fastest plan anyone in Castle Garden can order from Ayera Technologies goes up to 1,000 Mbps, the slowest package only goes up to 120 Mbps, and the city-wide average maximum speed for Castle Garden customers is up to 625 Mbps.
Show all download speeds
- 57.4% up to 1,000.0 Mbps
- 42.6% up to 120.0 Mbps
Ayera Technologies fixed wireless upload speeds
In Castle Garden download speeds tend to be faster than than upload speeds for Ayera Technologies fixed wireless. Compared to other ISPs, Ayera Technologies is the fastest where upload speeds are concerned, and the fastest compared to other Castle Garden fixed wireless providers. Ayera Technologies 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 Castle Garden is up to 500 Mbps. Some customers have slower plan choices, which only go up to 40 Mbps. On average, Ayera Technologies customers can get speeds up to 304 Mbps.
Show all upload speeds
- 57.4% up to 500.0 Mbps
- 42.6% up to 40.0 Mbps
Verizon Fixed Wireless in Castle Garden, CA
Verizon fixed wireless coverage
About 100.00%, or 54 people, have Verizon fixed wireless internet available to them in the city. The company covers the entire Castle Garden area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Castle Garden.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in Castle Garden. Versus other fixed wireless providers in the area, Verizon fixed wireless is above average. There are no different maximum speeds throughout Castle Garden. The fastest plan anyone in Castle Garden can order from Verizon goes up to 300 Mbps, and all Castle Garden customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In Castle Garden download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and below average compared to other Castle Garden fixed wireless providers. Verizon offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castle Garden is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
T-Mobile Home Internet Fixed Wireless in Castle Garden, CA
T-Mobile Home Internet fixed wireless coverage
About 100.00%, or 54 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the entire Castle Garden area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Castle Garden.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in Castle Garden. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are no different maximum speeds throughout Castle Garden. The fastest plan anyone in Castle Garden can order from T-Mobile Home Internet goes up to 100 Mbps, and all Castle Garden customers can get this speed.
Show all download speeds
- 100.0% up to 100.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Castle Garden download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and below average compared to other Castle Garden fixed wireless providers. T-Mobile Home Internet offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castle Garden is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
Cal.net Fixed Wireless in Castle Garden, CA
Cal.net fixed wireless coverage
About 100.00%, or 54 people, have Cal.net fixed wireless internet available to them in the city. The company covers the entire Castle Garden area. Cal.net is a large internet service provider internet service providers in the US, with internet service available in every corner of Castle Garden.
Cal.net fixed wireless download speeds
Cal.net is below average when comparing download speeds to all other internet providers in Castle Garden. Versus other fixed wireless providers in the area, Cal.net fixed wireless is below average. There are no different maximum speeds throughout Castle Garden. The fastest plan anyone in Castle Garden can order from Cal.net goes up to 100 Mbps, and all Castle Garden customers can get this speed.
Show all download speeds
- 100.0% up to 100.0 Mbps
Cal.net fixed wireless upload speeds
In Castle Garden download speeds tend to be faster than than upload speeds for Cal.net fixed wireless. Compared to other ISPs, Cal.net is below average where upload speeds are concerned, and below average compared to other Castle Garden fixed wireless providers. Cal.net offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castle Garden is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
unWired Broadband Fixed Wireless in Castle Garden, CA
unWired Broadband fixed wireless coverage
About 100.00%, or 54 people, have unWired Broadband fixed wireless internet available to them in the city. The company covers the entire Castle Garden area. unWired Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in every corner of Castle Garden.
unWired Broadband fixed wireless download speeds
unWired Broadband is the slowest when comparing download speeds to all other internet providers in Castle Garden. Versus other fixed wireless providers in the area, unWired Broadband fixed wireless is the slowest. There are no different maximum speeds throughout Castle Garden. The fastest plan anyone in Castle Garden can order from unWired Broadband goes up to 50 Mbps, and all Castle Garden customers can get this speed.
Show all download speeds
- 100.0% up to 50.0 Mbps
unWired Broadband fixed wireless upload speeds
In Castle Garden download speeds tend to be faster than than upload speeds for unWired Broadband fixed wireless. Compared to other ISPs, unWired Broadband is the slowest where upload speeds are concerned, and the slowest compared to other Castle Garden fixed wireless providers. unWired Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castle Garden is up to 12 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 12.0 Mbps
Castle Garden Internet by Area
This information is most helpful to those looking for homes or considering moving to Castle Garden or any of the areas nearby.
How does internet in Castle Garden compare to the rest of California?
Internet speeds in Castle Garden are much slower versus the average speeds in California: 3,631 Mbps in California versus 1,276 Mbps in the city. The state has similar internet availability compared to the city. Average internet coverage in California is 98.73% versus 100.00% in Castle Garden.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around Castle Garden 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
- McSwain, CA: equal internet coverage, faster speeds
- Atwater, CA: less internet coverage, faster speeds
- Merced, CA: less internet coverage, faster speeds
- Winton, CA: less internet coverage, faster speeds
- Buhach, CA: less internet coverage, slower speeds
- Cressey, CA: equal internet coverage, slower speeds
- Livingston, CA: equal internet coverage, slower speeds
- Tuttle, CA: less internet coverage, slower speeds
- Ballico, CA: equal internet coverage, slower speeds
- Calpack, CA: less internet coverage, slower speeds
Cities with Similar Populations
- Pennsville, OH: equal internet coverage, slower speeds
- Patchinville, PA: equal internet coverage, slower speeds
- Finley, WI: equal internet coverage, faster speeds
- Patosi, MS: equal internet coverage, slower speeds
- Peapatch, VA: equal internet coverage, slower speeds
- Pearsonia, OK: less internet coverage, slower speeds
- Pebble, ID: less internet coverage, slower speeds
- Pedro Bay, AK: less internet coverage, slower speeds
- Pennington, AR: equal internet coverage, faster speeds
- Palmetto Beach, AL: equal internet coverage, slower speeds