In Castle Hills there are 2 residential Cable providers covering 99.52% of the city. The average home can get speeds up to 1,277 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 Cable internet providers in Castle Hills, TX.
To see availability maps for all providers including fiber, cable, DSL, and more in Castle Hills, TX please click below.
Castle Hills, TX Availability Maps
Cable Internet Service Providers in Castle Hills
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 Hills are not shown.
Castle Hills 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 Hills is cable internet available?
Cable Internet Availability Key
Cable is available in 99.52% of Castle Hills. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is Spectrum. Call one of the companies with service in Castle Hills above to see who has service at your home.
How fast is cable internet in Castle Hills?
The map below shows maximum cable internet speeds by area in Castle Hills.
Cable Internet Speed Key
The average Castle Hills home can get up to 1,277 Mbps on their cable internet plan. The fastest cable download speed in the city is 1,500 Mbps, which 55.05% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 44.47% 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 Castle Hills.
Cable internet speeds tend to be faster in the southeast parts of Castle Hills, and slower in the northwest areas of the city.
Is cable the fastest internet I can get in Castle Hills?
The fastest internet for you may vary based on where in Castle Hills you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 95.25% of Castle Hills homes.
- Cable is fastest for 4.75% 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 less than 1% of Castle Hills homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Castle Hills, along with details on where in Castle Hills and at what speeds.
Spectrum Cable in Castle Hills, TX
Spectrum cable coverage
About 99.52%, or 3,959 people, have Spectrum cable internet available to them in the city. The company covers the entire Castle Hills area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in most of Castle Hills.
Spectrum cable download speeds
Spectrum is below average when comparing download speeds to all other internet providers in Castle Hills. Versus other cable providers in the area, Spectrum cable is the slowest. There are no different maximum speeds throughout Castle Hills. The fastest plan anyone in Castle Hills can order from Spectrum goes up to 1,000 Mbps, and all Castle Hills customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum cable upload speeds
In Castle Hills download speeds tend to be faster than than upload speeds for Spectrum cable. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the slowest compared to other Castle Hills cable providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castle Hills is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Astound Broadband Cable in Castle Hills, TX
Astound Broadband cable coverage
About 55.05%, or 2,190 people, have Astound Broadband cable internet available to them in the city. The company covers the southeast, south, east, central, and southwest Castle Hills area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Castle Hills.
Astound Broadband cable download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in Castle Hills. Versus other cable providers in the area, Astound Broadband cable is the fastest. There are no different maximum speeds throughout Castle Hills. The fastest plan anyone in Castle Hills can order from Astound Broadband goes up to 1,500 Mbps, and all Castle Hills customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
Astound Broadband cable upload speeds
In Castle Hills download speeds tend to be faster than than upload speeds for Astound Broadband cable. Compared to other ISPs, Astound Broadband is below average where upload speeds are concerned, and the fastest compared to other Castle Hills cable providers. Astound Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castle Hills is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Castle Hills Cable by Area
This information is most helpful to those looking for homes or considering moving to Castle Hills or any of the areas nearby.
How does cable internet in Castle Hills compare to the rest of Texas?
Cable internet speeds in Castle Hills are much faster versus the average speeds in Texas: 0.00 Mbps in Texas versus 1,277 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in Texas is 0.00% versus 99.52% in Castle Hills.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Castle Hills are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does cable 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
- Balcones Heights, TX: less cable coverage, slower speeds
- San Antonio, TX: less cable coverage, slower speeds
- Olmos Park, TX: more cable coverage, faster speeds
- Alamo Heights, TX: more cable coverage, faster speeds
- Hill Country Village, TX: more cable coverage, slower speeds
- Terrell Hills, TX: more cable coverage, faster speeds
- Shavano Park, TX: more cable coverage, slower speeds
- Hollywood Park, TX: more cable coverage, slower speeds
- Leon Valley, TX: more cable coverage, slower speeds
- Windcrest, TX: more cable coverage, slower speeds
Cities with Similar Populations
- Vernon, AL: less cable coverage, slower speeds
- Clearlake Oaks, CA: less cable coverage, slower speeds
- North Hampton, NH: more cable coverage, faster speeds
- North Shore, LA: less cable coverage, slower speeds
- Northlake, SC: more cable coverage, slower speeds
- Jackson, MN: less cable coverage, slower speeds
- Chester, WV: more cable coverage, faster speeds
- Carefree, AZ: less cable coverage, faster speeds
- Cape Charles, VA: less cable coverage, slower speeds
- Camden, NC: less cable coverage, slower speeds