In Castle Valley there is 1 residential DSL provider covering 89.66% of the city. The average home can get speeds up to 97 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.
This page contains all DSL internet providers in Castle Valley, UT.
To see availability maps for all providers including fiber, cable, DSL, and more in Castle Valley, UT please click below.
Castle Valley, UT Availability Maps
DSL Internet Service Provider in Castle Valley
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 Valley are not shown.
Castle Valley 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
Where in Castle Valley is DSL internet available?
DSL Internet Availability Key
DSL is available in 89.66% of Castle Valley. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Frontier. Call one of the companies with service in Castle Valley above to see who has service at your home.
How fast is DSL internet in Castle Valley?
The map below shows maximum DSL internet speeds by area in Castle Valley.
DSL Internet Speed Key
The average Castle Valley home can get up to 97 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 115 Mbps, which 74.68% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 14.99% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Castle Valley.
DSL internet speeds tend to be faster in the central parts of Castle Valley, and slower in the north areas of the city.
Is DSL the fastest internet I can get in Castle Valley?
The fastest internet for you may vary based on where in Castle Valley you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 89.66% of Castle Valley homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for 10.34% of Castle Valley homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Castle Valley, along with details on where in Castle Valley and at what speeds.
Frontier Communications DSL in Castle Valley, UT
Frontier DSL coverage
About 89.66%, or 347 people, have Frontier DSL internet available to them in the city. The company covers the entire Castle Valley area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in most of Castle Valley.
Frontier Communications DSL download speeds
Frontier is below average when comparing download speeds to all other internet providers in Castle Valley. Versus other DSL providers in the area, Frontier DSL is the fastest. There are 2 different maximum speeds throughout Castle Valley. The fastest plan anyone in Castle Valley can order from Frontier goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Castle Valley customers is up to 97 Mbps.
Show all download speeds
- 83.3% up to 115.0 Mbps
- 16.7% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Castle Valley download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is below average where upload speeds are concerned, and the fastest compared to other Castle Valley DSL providers. Frontier 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 Valley is up to 7.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 6.0 Mbps.
Show all upload speeds
- 83.3% up to 7.0 Mbps
- 16.7% up to 1.0 Mbps
Castle Valley DSL by Area
This information is most helpful to those looking for homes or considering moving to Castle Valley or any of the areas nearby.
How does DSL internet in Castle Valley compare to the rest of Utah?
DSL internet speeds in Castle Valley are much faster versus the average speeds in Utah: 0.00 Mbps in Utah versus 97 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Utah is 0.00% versus 89.66% in Castle Valley.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Castle Valley are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does DSL internet 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
- Moab, UT: less DSL coverage, slower speeds
- La Sal, UT: less DSL coverage, slower speeds
- Paradox, CO: less DSL coverage, slower speeds
- Gateway, CO: more DSL coverage, slower speeds
- Thompson Springs, UT: less DSL coverage, slower speeds
- Bedrock, CO: more DSL coverage, slower speeds
- Glade Park, CO: less DSL coverage, slower speeds
- Vancorum, CO: more DSL coverage, slower speeds
- Gilsonite, CO: less DSL coverage, slower speeds
- Mack, CO: more DSL coverage, slower speeds
Cities with Similar Populations
- Hartmansville, WV: less DSL coverage, slower speeds
- Hickory Tree, TN: less DSL coverage, slower speeds
- Protem, MO: more DSL coverage, slower speeds
- Henderson, IL: more DSL coverage, slower speeds
- Heart Lake, PA: less DSL coverage, slower speeds
- Spring Prairie, WI: more DSL coverage, slower speeds
- Hassell, NC: less DSL coverage, slower speeds
- Harvel, IL: less DSL coverage, slower speeds
- Hartfield, NY: less DSL coverage, slower speeds
- Harlem Springs, OH: more DSL coverage, slower speeds