In St. Helena Island there are 2 residential Cable providers covering 96.70% of the city. The average home can get speeds up to 1,231 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 St. Helena Island, SC.
To see availability maps for all providers including fiber, cable, DSL, and more in St. Helena Island, SC please click below.
St. Helena Island, SC Availability Maps
Cable Internet Service Providers in St. Helena Island
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 St. Helena Island are not shown.
St. Helena Island 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 St. Helena Island is cable internet available?
Cable Internet Availability Key
Cable is available in 96.70% of St. Helena Island. 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 St. Helena Island above to see who has service at your home.
How fast is cable internet in St. Helena Island?
The map below shows maximum cable internet speeds by area in St. Helena Island.
Cable Internet Speed Key
The average St. Helena Island home can get up to 1,231 Mbps on their cable internet plan. The fastest cable download speed in the city is 2,000 Mbps, which 3.81% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 92.89% of homes can only purchase plans up to 1,200 Mbps. See the internet provider details below for info about their speed and coverage in St. Helena Island.
Cable internet speeds tend to be faster in the central parts of St. Helena Island, and slower in the northwest areas of the city.
Is cable the fastest internet I can get in St. Helena Island?
The fastest internet for you may vary based on where in St. Helena Island you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 2.41% of St. Helena Island homes.
- Cable is fastest for 96.70% 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 St. Helena Island homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in St. Helena Island, along with details on where in St. Helena Island and at what speeds.
XFINITY from Comcast Cable in St. Helena Island, SC
XFINITY cable coverage
About 96.70%, or 7,493 people, have XFINITY cable internet available to them in the city. The company covers the entire St. Helena Island area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of St. Helena Island.
XFINITY from Comcast cable download speeds
XFINITY is the fastest when comparing download speeds to all other internet providers in St. Helena Island. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout St. Helena Island. The fastest plan anyone in St. Helena Island can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the city-wide average maximum speed for St. Helena Island customers is up to 1,231 Mbps.
Show all download speeds
- 3.9% up to 2,000.0 Mbps
- 96.1% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In St. Helena Island download speeds tend to be faster than than upload speeds for XFINITY cable. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the slowest compared to other St. Helena Island cable providers. XFINITY 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 St. Helena Island is up to 250 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 43 Mbps.
Show all upload speeds
- 3.9% up to 250.0 Mbps
- 96.1% up to 35.0 Mbps
Sparklight Cable in St. Helena Island, SC
Sparklight cable coverage
About 3.38%, or 262 people, have Sparklight cable internet available to them in the city. The company covers the west St. Helena Island area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of St. Helena Island.
Sparklight cable download speeds
Sparklight is above average when comparing download speeds to all other internet providers in St. Helena Island. Versus other cable providers in the area, Sparklight cable is the slowest. There are no different maximum speeds throughout St. Helena Island. The fastest plan anyone in St. Helena Island can order from Sparklight goes up to 1,000 Mbps, and all St. Helena Island customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Sparklight cable upload speeds
In St. Helena Island download speeds tend to be faster than than upload speeds for Sparklight cable. Compared to other ISPs, Sparklight is below average where upload speeds are concerned, and the fastest compared to other St. Helena Island cable providers. Sparklight offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in St. Helena Island is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
St. Helena Island Cable by Area
This information is most helpful to those looking for homes or considering moving to St. Helena Island or any of the areas nearby.
How does cable internet in St. Helena Island compare to the rest of South Carolina?
Cable internet speeds in St. Helena Island are much faster versus the average speeds in South Carolina: 0.00 Mbps in South Carolina versus 1,231 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in South Carolina is 0.00% versus 96.70% in St. Helena Island.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around St. Helena Island 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
- Lands End, SC: more cable coverage, slower speeds
- Parris Island, SC: more cable coverage, slower speeds
- Ladys Island, SC: less cable coverage, slower speeds
- Port Royal, SC: less cable coverage, faster speeds
- Beaufort, SC: less cable coverage, slower speeds
- Burton, SC: more cable coverage, slower speeds
- Laurel Bay, SC: more cable coverage, faster speeds
- Edisto Beach, SC: more cable coverage, slower speeds
- Hilton Head Island, SC: more cable coverage, slower speeds
- Nevadun, SC: less cable coverage, slower speeds
Cities with Similar Populations
- Berwick, ME: more cable coverage, faster speeds
- Wellsville, NY: less cable coverage, slower speeds
- Wellsville, OH: more cable coverage, faster speeds
- Brookville, IN: less cable coverage, slower speeds
- Brooklet, GA: less cable coverage, slower speeds
- Brewerton, NY: more cable coverage, slower speeds
- Boqueron, PR: less cable coverage, slower speeds
- Bonsall, CA: less cable coverage, faster speeds
- Bloomingdale, NJ: more cable coverage, slower speeds
- Blandon, PA: more cable coverage, faster speeds