In Jefferson there are 2 residential Cable providers covering 76.41% of the city. The average home can get speeds up to 1,500 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 Jefferson, SD.
To see availability maps for all providers including fiber, cable, DSL, and more in Jefferson, SD please click below.
Jefferson, SD Availability Maps
Cable Internet Service Providers in Jefferson
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 Jefferson are not shown.
Jefferson 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 Jefferson is cable internet available?
Cable Internet Availability Key
Cable is available in 76.41% of Jefferson. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is Long Lines. Call one of the companies with service in Jefferson above to see who has service at your home.
How fast is cable internet in Jefferson?
The map below shows maximum cable internet speeds by area in Jefferson.
Cable Internet Speed Key
The average Jefferson home can get up to 1,500 Mbps on their cable internet plan. The fastest cable download speed in the city is 1,500 Mbps, which 76.41% of residents can get.
Is cable the fastest internet I can get in Jefferson?
The fastest internet for you may vary based on where in Jefferson you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 57.92% of Jefferson homes.
- Cable is fastest for 40.94% 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 Jefferson homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Jefferson, along with details on where in Jefferson and at what speeds.
Long Lines Cable in Jefferson, SD
Long Lines cable coverage
About 76.41%, or 1,467 people, have Long Lines cable internet available to them in the city. The company covers the southeast, south, north, northeast, east, central, southwest, and west Jefferson area. Long Lines is a large internet service provider internet service providers in the US, with internet service available in much of Jefferson.
Long Lines cable download speeds
Long Lines is above average when comparing download speeds to all other internet providers in Jefferson. Versus other cable providers in the area, Long Lines cable is the fastest. There are no different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Long Lines goes up to 1,500 Mbps, and all Jefferson customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
Long Lines cable upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for Long Lines cable. Compared to other ISPs, Long Lines is below average where upload speeds are concerned, and one of the fastest compared to other Jefferson cable providers. Long Lines offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Jefferson is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Sparklight Cable in Jefferson, SD
Sparklight cable coverage
About 36.93%, or 709 people, have Sparklight cable internet available to them in the city. The company covers the southeast and south Jefferson area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in some of Jefferson.
Sparklight cable download speeds
Sparklight is above average when comparing download speeds to all other internet providers in Jefferson. Versus other cable providers in the area, Sparklight cable is the slowest. There are no different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Sparklight goes up to 1,000 Mbps, and all Jefferson customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Sparklight cable upload speeds
In Jefferson 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 one of the fastest compared to other Jefferson cable providers. Sparklight offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Jefferson is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Jefferson Cable by Area
This information is most helpful to those looking for homes or considering moving to Jefferson or any of the areas nearby.
How does cable internet in Jefferson compare to the rest of South Dakota?
Cable internet speeds in Jefferson are much faster versus the average speeds in South Dakota: 0.00 Mbps in South Dakota versus 1,500 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in South Dakota is 0.00% versus 76.41% in Jefferson.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Jefferson 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
- North Sioux City, SD: more cable coverage, slower speeds
- Ponca, NE: less cable coverage, slower speeds
- Elk Point, SD: more cable coverage, slower speeds
- Sioux City, IA: more cable coverage, slower speeds
- South Sioux City, NE: more cable coverage, slower speeds
- Junction City, SD: less cable coverage, slower speeds
- Dakota City, NE: less cable coverage, slower speeds
- Sergeant Bluff, IA: more cable coverage, slower speeds
- Homer, NE: less cable coverage, slower speeds
- Akron, IA: more cable coverage, slower speeds
Cities with Similar Populations
- Worton, MD: more cable coverage, slower speeds
- Rosenhayn, NJ: more cable coverage, slower speeds
- Sherman, NY: less cable coverage, slower speeds
- Delaware City, DE: more cable coverage, slower speeds
- Dale, WI: more cable coverage, slower speeds
- Cope, SC: less cable coverage, slower speeds
- Constable, NY: more cable coverage, slower speeds
- Collings Lakes, NJ: more cable coverage, faster speeds
- Colchester, IL: less cable coverage, slower speeds
- Canaan, ME: more cable coverage, slower speeds