In Thornhill there is 1 residential Cable provider covering 54.96% of the city. The average home can get speeds up to 2,000 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 Thornhill, VA.
To see availability maps for all providers including fiber, cable, DSL, and more in Thornhill, VA please click below.
Thornhill, VA Availability Maps
Cable Internet Service Provider in Thornhill
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 Thornhill are not shown.
Thornhill 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 Thornhill is cable internet available?
Cable Internet Availability Key
Cable is available in 54.96% of Thornhill. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is XFINITY. Call one of the companies with service in Thornhill above to see who has service at your home.
How fast is cable internet in Thornhill?
The map below shows maximum cable internet speeds by area in Thornhill.
Cable Internet Speed Key
The average Thornhill home can get up to 2,000 Mbps on their cable internet plan. The fastest cable download speed in the city is 2,000 Mbps, which 54.96% of residents can get.
Is cable the fastest internet I can get in Thornhill?
The fastest internet for you may vary based on where in Thornhill you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 45.04% of Thornhill homes.
- Cable is fastest for 54.96% 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 Thornhill homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Thornhill, along with details on where in Thornhill and at what speeds.
XFINITY from Comcast Cable in Thornhill, VA
XFINITY cable coverage
About 54.96%, or 155 people, have XFINITY cable internet available to them in the city. The company covers the east Thornhill area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Thornhill.
XFINITY from Comcast cable download speeds
XFINITY is the fastest when comparing download speeds to all other internet providers in Thornhill. Versus other cable providers in the area, XFINITY cable is the fastest. There are no different maximum speeds throughout Thornhill. The fastest plan anyone in Thornhill can order from XFINITY goes up to 2,000 Mbps, and all Thornhill customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
XFINITY from Comcast cable upload speeds
In Thornhill 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 Thornhill cable providers. XFINITY offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Thornhill is up to 250 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 250.0 Mbps
Thornhill Cable by Area
This information is most helpful to those looking for homes or considering moving to Thornhill or any of the areas nearby.
How does cable internet in Thornhill compare to the rest of Virginia?
Cable internet speeds in Thornhill are much faster versus the average speeds in Virginia: 0.00 Mbps in Virginia versus 2,000 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in Virginia is 0.00% versus 54.96% in Thornhill.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Thornhill 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
- Tatum, VA: more cable coverage, slower speeds
- Wares Crossroads, VA: more cable coverage, slower speeds
- Ellisville, VA: less cable coverage, slower speeds
- Unionville, VA: less cable coverage, slower speeds
- Lahore, VA: more cable coverage, slower speeds
- Blue Ridge Shores, VA: less cable coverage, slower speeds
- Mineral, VA: less cable coverage, slower speeds
- Rhoadesville, VA: less cable coverage, slower speeds
- Plum Tree, VA: less cable coverage, similar speeds
- Orange, VA: more cable coverage, slower speeds
Cities with Similar Populations
- Dundee, IN: less cable coverage, slower speeds
- East Benton, PA: more cable coverage, slower speeds
- Earlton, KS: less cable coverage, slower speeds
- Dunnavant, AL: more cable coverage, slower speeds
- Dundee, KS: less cable coverage, similar speeds
- Dunbar, IA: more cable coverage, slower speeds
- Duan, NC: more cable coverage, slower speeds
- Drift, KY: more cable coverage, slower speeds
- Doland, SD: more cable coverage, slower speeds
- Doddsville, MS: less cable coverage, slower speeds