In Castro County there are 5 residential Fiber providers covering 83.15% of the county. The average home can get speeds up to 1,739 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 Fiber 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
Fiber Internet Service Providers 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 fiber internet available?
Fiber Internet Availability Key
Fiber is available in 83.15% of Castro County. Areas in green have fiber 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 fiber internet in Castro County?
The map below shows maximum fiber internet speeds by area in Castro County.
Fiber Internet Speed Key
The average Castro County home can get up to 1,739 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 2,000 Mbps, which 61.42% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 21.73% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Castro County.
Fiber internet speeds tend to be faster in the southeast parts of Castro County, and slower in the east areas of the county.
Is fiber 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, fixed wireless competes most often with fiber 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.
Fiber 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 Fiber in Castro County, TX
Windstream fiber coverage
About 62.24%, or 4,588 people, have Windstream fiber internet available to them in the county. The company covers the central, north, southeast, west, and northwest Castro County area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Castro County.
Windstream fiber download speeds
Windstream is the fastest when comparing download speeds to all other internet providers in Castro County. Versus other fiber providers in the area, Windstream fiber is the fastest. There are 2 different maximum speeds throughout Castro County. The fastest plan anyone in Castro County can order from Windstream goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Castro County customers is up to 1,987 Mbps.
Show all download speeds
- 98.7% up to 2,000.0 Mbps
- 1.3% up to 1,000.0 Mbps
Windstream fiber upload speeds
In Castro County download speeds tend to be equal to than upload speeds for Windstream fiber. Compared to other ISPs, Windstream is the fastest where upload speeds are concerned, and the fastest compared to other Castro County fiber providers. Windstream offers 2 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 2,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, Windstream customers can get speeds up to 1,987 Mbps.
Show all upload speeds
- 98.7% up to 2,000.0 Mbps
- 1.3% up to 1,000.0 Mbps
AW Broadband Fiber in Castro County, TX
AW Broadband fiber coverage
About 56.57%, or 4,170 people, have AW Broadband fiber internet available to them in the county. The company covers the central, north, west, and northwest Castro County area. AW Broadband is a large internet service provider internet service providers in the US, with internet service available in a majority of Castro County.
AW Broadband fiber download speeds
AW Broadband is above average when comparing download speeds to all other internet providers in Castro County. Versus other fiber providers in the area, AW Broadband fiber is one of the slowest. There are no different maximum speeds throughout Castro County. The fastest plan anyone in Castro County can order from AW Broadband goes up to 1,000 Mbps, and all Castro County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
AW Broadband fiber upload speeds
In Castro County download speeds tend to be equal to than upload speeds for AW Broadband fiber. Compared to other ISPs, AW Broadband is above average where upload speeds are concerned, and one of the slowest compared to other Castro County fiber providers. AW Broadband offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Castro County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Mid-Plains Communications Fiber in Castro County, TX
Mid-Plains Communications fiber coverage
About 9.06%, or 668 people, have Mid-Plains Communications fiber internet available to them in the county. The company covers the east and northeast Castro County area. Mid-Plains Communications is an average-sized internet service provider internet service providers in the US, with internet service available in a very small piece of Castro County.
Mid-Plains Communications fiber download speeds
Mid-Plains Communications is above average when comparing download speeds to all other internet providers in Castro County. Versus other fiber providers in the area, Mid-Plains Communications fiber is one of the slowest. There are no different maximum speeds throughout Castro County. The fastest plan anyone in Castro County can order from Mid-Plains Communications goes up to 1,000 Mbps, and all Castro County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Mid-Plains Communications fiber upload speeds
In Castro County download speeds tend to be equal to than upload speeds for Mid-Plains Communications fiber. Compared to other ISPs, Mid-Plains Communications is above average where upload speeds are concerned, and one of the slowest compared to other Castro County fiber providers. Mid-Plains Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Castro County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
West Texas Rural Telephone Cooperative Fiber in Castro County, TX
West Texas Rural Telephone Cooperative fiber coverage
About 5.60%, or 413 people, have West Texas Rural Telephone Cooperative fiber internet available to them in the county. The company covers the northwest and north Castro County area. West Texas Rural Telephone Cooperative is an average-sized internet service provider internet service providers in the US, with internet service available in a very small piece of Castro County.
West Texas Rural Telephone Cooperative fiber download speeds
West Texas Rural Telephone Cooperative is above average when comparing download speeds to all other internet providers in Castro County. Versus other fiber providers in the area, West Texas Rural Telephone Cooperative fiber is one of the slowest. There are no different maximum speeds throughout Castro County. The fastest plan anyone in Castro County can order from West Texas Rural Telephone Cooperative goes up to 1,000 Mbps, and all Castro County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
West Texas Rural Telephone Cooperative fiber upload speeds
In Castro County download speeds tend to be equal to than upload speeds for West Texas Rural Telephone Cooperative fiber. Compared to other ISPs, West Texas Rural Telephone Cooperative is above average where upload speeds are concerned, and one of the slowest compared to other Castro County fiber providers. West Texas Rural Telephone Cooperative offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Castro County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Five Area Telephone Cooperative Fiber in Castro County, TX
Five Area Telephone Cooperative fiber coverage
About 1.26%, or 93 people, have Five Area Telephone Cooperative fiber internet available to them in the county. The company covers the southwest Castro County area. Five Area Telephone Cooperative is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Castro County.
Five Area Telephone Cooperative fiber download speeds
Five Area Telephone Cooperative is above average when comparing download speeds to all other internet providers in Castro County. Versus other fiber providers in the area, Five Area Telephone Cooperative fiber is one of the slowest. There are no different maximum speeds throughout Castro County. The fastest plan anyone in Castro County can order from Five Area Telephone Cooperative goes up to 1,000 Mbps, and all Castro County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Five Area Telephone Cooperative fiber upload speeds
In Castro County download speeds tend to be equal to than upload speeds for Five Area Telephone Cooperative fiber. Compared to other ISPs, Five Area Telephone Cooperative is above average where upload speeds are concerned, and one of the slowest compared to other Castro County fiber providers. Five Area Telephone Cooperative offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Castro County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Castro County Fiber 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 fiber internet in Castro County compare to the rest of Texas?
Fiber internet speeds in Castro County are much faster versus the average speeds in Texas: 0.00 Mbps in Texas versus 1,739 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in Texas is 0.00% versus 83.15% in Castro County.
What zip codes have fiber internet?
Fiber 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 fiber 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: more fiber coverage, slower speeds
- Parmer County, TX: more fiber coverage, slower speeds
- Curry County, NM: more fiber coverage, slower speeds
- Briscoe County, TX: more fiber coverage, slower speeds
- Hall County, TX: more fiber coverage, faster speeds
- De Baca County, NM: more fiber coverage, slower speeds
- Childress County, TX: less fiber coverage, slower speeds
- Harmon County, OK: less fiber coverage, slower speeds
- Jackson County, OK: less fiber coverage, faster speeds
- Comanche County, OK: less fiber coverage, faster speeds
Counties with Similar Populations
- Culebra Municipio, PR: less fiber coverage, slower speeds
- Dawson County, MT: less fiber coverage, slower speeds
- San Juan County, UT: less fiber coverage, slower speeds
- Daniels County, MT: more fiber coverage, slower speeds
- Dallas County, MO: less fiber coverage, slower speeds
- Dallam County, TX: more fiber coverage, slower speeds
- Daggett County, UT: less fiber coverage, slower speeds
- Dade County, MO: less fiber coverage, faster speeds
- Custer County, ID: more fiber coverage, slower speeds
- Schuyler County, MO: less fiber coverage, faster speeds