In Castro County there is 1 residential DSL provider covering 85.40% of the county. The average home can get speeds up to 60 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 Castro County, TX.
To see availability maps for all providers including fiber, cable, DSL, and more in Castro County, TX please click below.
Castro County, TX Availability Maps
DSL Internet Service Provider in Castro County
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 Castro County are not shown.
Castro County 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 Castro County is DSL internet available?
DSL Internet Availability Key
DSL is available in 85.40% of Castro County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Windstream. Call one of the companies with service in Castro County above to see who has service at your home.
How fast is DSL internet in Castro County?
The map below shows maximum DSL internet speeds by area in Castro County.
DSL Internet Speed Key
The average Castro County home can get up to 60 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 200 Mbps, which 11.29% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 41.68% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Castro County.
DSL internet speeds tend to be faster in the south parts of Castro County, and slower in the northeast areas of the county.
Is DSL the fastest internet I can get in Castro County?
The fastest internet for you may vary based on where in Castro County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 83.15% of Castro County homes.
- Cable is fastest for less than 1% of the county.
- DSL is fastest for 1.10%.
- Fixed wireless is fastest for 14.71%.
- Satellite internet may be the only option for 1.04% of Castro County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Castro County, along with details on where in Castro County and at what speeds.
Windstream DSL in Castro County, TX
Windstream DSL coverage
About 85.40%, or 6,295 people, have Windstream DSL internet available to them in the county. The company covers the entire Castro County area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in most of Castro County.
Windstream DSL download speeds
Windstream is below average when comparing download speeds to all other internet providers in Castro County. Versus other DSL providers in the area, Windstream DSL is the fastest. There are 5 different maximum speeds throughout Castro County. The fastest plan anyone in Castro County can order from Windstream goes up to 200 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Castro County customers is up to 60 Mbps.
Show all download speeds
- 13.2% up to 200.0 Mbps
- 20.8% up to 100.0 Mbps
- 13.8% up to 50.0 Mbps
- 3.4% up to 25.0 Mbps
- 48.8% up to 10.0 Mbps
Windstream DSL upload speeds
In Castro County download speeds tend to be faster than than upload speeds for Windstream DSL. Compared to other ISPs, Windstream is below average where upload speeds are concerned, and the fastest compared to other Castro County DSL providers. Windstream offers 8 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castro County is up to 52 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Windstream customers can get speeds up to 14 Mbps.
Show all upload speeds
- 15.5% up to 52.0 Mbps
- 0.9% up to 50.0 Mbps
- 5.2% up to 32.0 Mbps
- 7.0% up to 23.0 Mbps
- 5.4% up to 17.0 Mbps
- 5.6% up to 12.0 Mbps
- 11.6% up to 3.0 Mbps
- 48.8% up to 1.0 Mbps
Castro County DSL by Area
This information is most helpful to those looking for homes or considering moving to Castro County or any of the areas nearby.
How does DSL internet in Castro County compare to the rest of Texas?
DSL internet speeds in Castro County are much faster versus the average speeds in Texas: 0.00 Mbps in Texas versus 60 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Texas is 0.00% versus 85.40% in Castro County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Castro County 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 counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Swisher County, TX: less DSL coverage, slower speeds
- Parmer County, TX: less DSL coverage, faster speeds
- Curry County, NM: less DSL coverage, slower speeds
- Hall County, TX: less DSL coverage, slower speeds
- De Baca County, NM: less DSL coverage, slower speeds
- Childress County, TX: less DSL coverage, slower speeds
- Harmon County, OK: more DSL coverage, slower speeds
- Jackson County, OK: less DSL coverage, slower speeds
- Comanche County, OK: less DSL coverage, slower speeds
- Stephens County, OK: less DSL coverage, slower speeds
Counties with Similar Populations
- Culebra Municipio, PR: more DSL coverage, slower speeds
- Dawson County, MT: less DSL coverage, slower speeds
- San Juan County, UT: less DSL coverage, slower speeds
- Daniels County, MT: less DSL coverage, slower speeds
- Dallas County, MO: less DSL coverage, faster speeds
- Dallam County, TX: less DSL coverage, faster speeds
- Daggett County, UT: less DSL coverage, faster speeds
- Dade County, MO: less DSL coverage, slower speeds
- Custer County, ID: less DSL coverage, slower speeds
- Scotland County, MO: less DSL coverage, slower speeds