In Union County there are 3 residential Cable providers covering 71.98% of the county. The average home can get speeds up to 1,370 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 Union County, SD.
To see availability maps for all providers including fiber, cable, DSL, and more in Union County, SD please click below.
Union County, SD Availability Maps
Cable Internet Service Providers in Union 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 Union County are not shown.
Union 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 Union County is cable internet available?
Cable Internet Availability Key
Cable is available in 71.98% of Union County. 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 Union County above to see who has service at your home.
How fast is cable internet in Union County?
The map below shows maximum cable internet speeds by area in Union County.
Cable Internet Speed Key
The average Union County home can get up to 1,370 Mbps on their cable internet plan. The fastest cable download speed in the county is 1,500 Mbps, which 53.26% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 18.73% 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 Union County.
Cable internet speeds tend to be faster in the southeast parts of Union County, and slower in the north areas of the county.
Is cable the fastest internet I can get in Union County?
The fastest internet for you may vary based on where in Union County you live. In general, fiber competes most often with cable in the county.
- Fiber is the fastest internet type for 49.69% of Union County homes.
- Cable is fastest for 49.27% of the county.
- 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 Union County homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Union County, along with details on where in Union County and at what speeds.
Long Lines Cable in Union County, SD
Long Lines cable coverage
About 53.32%, or 8,963 people, have Long Lines cable internet available to them in the county. The company covers the southeast, south, and central Union County area. Long Lines is a large internet service provider internet service providers in the US, with internet service available in a majority of Union County.
Long Lines cable download speeds
Long Lines is above average when comparing download speeds to all other internet providers in Union County. Versus other cable providers in the area, Long Lines cable is the fastest. There are 2 different maximum speeds throughout Union County. The fastest plan anyone in Union County can order from Long Lines goes up to 1,500 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Union County customers is up to 1,499 Mbps.
Show all download speeds
- 99.9% up to 1,500.0 Mbps
- 0.1% up to 1,000.0 Mbps
Long Lines cable upload speeds
In Union County 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 Union County cable providers. Long Lines offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Union County 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 Union County, SD
Sparklight cable coverage
About 49.17%, or 8,266 people, have Sparklight cable internet available to them in the county. The company covers the southeast Union County area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in some of Union County.
Sparklight cable download speeds
Sparklight is above average when comparing download speeds to all other internet providers in Union County. Versus other cable providers in the area, Sparklight cable is one of the slowest. There are no different maximum speeds throughout Union County. The fastest plan anyone in Union County can order from Sparklight goes up to 1,000 Mbps, and all Union County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Sparklight cable upload speeds
In Union County 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 Union County cable providers. Sparklight offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Union County is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Bluepeak Cable in Union County, SD
Bluepeak cable coverage
About 18.10%, or 3,043 people, have Bluepeak cable internet available to them in the county. The company covers the south, north, and central Union County area. Bluepeak is a large internet service provider internet service providers in the US, with internet service available in a small portion of Union County.
Bluepeak cable download speeds
Bluepeak is above average when comparing download speeds to all other internet providers in Union County. Versus other cable providers in the area, Bluepeak cable is one of the slowest. There are no different maximum speeds throughout Union County. The fastest plan anyone in Union County can order from Bluepeak goes up to 1,000 Mbps, and all Union County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Bluepeak cable upload speeds
In Union County download speeds tend to be faster than than upload speeds for Bluepeak cable. Compared to other ISPs, Bluepeak is below average where upload speeds are concerned, and the slowest compared to other Union County cable providers. Bluepeak offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Union County is up to 30 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 30.0 Mbps
Union County Cable by Area
This information is most helpful to those looking for homes or considering moving to Union County or any of the areas nearby.
How does cable internet in Union County compare to the rest of South Dakota?
Cable internet speeds in Union County are much faster versus the average speeds in South Dakota: 0.00 Mbps in South Dakota versus 1,370 Mbps in the county. The state has similar cable availability compared to the county. Average cable coverage in South Dakota is 0.00% versus 71.98% in Union County.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Union County 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 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
- Plymouth County, IA: less cable coverage, slower speeds
- Cedar County, NE: less cable coverage, slower speeds
- Cherokee County, IA: less cable coverage, slower speeds
- Knox County, NE: less cable coverage, slower speeds
- Buena Vista County, IA: less cable coverage, faster speeds
- Pocahontas County, IA: less cable coverage, slower speeds
- Humboldt County, IA: less cable coverage, slower speeds
- Wright County, IA: less cable coverage, slower speeds
- Brown County, NE: less cable coverage, slower speeds
- Franklin County, IA: less cable coverage, slower speeds
Counties with Similar Populations
- Jefferson County, MT: less cable coverage, slower speeds
- Jackson County, WI: less cable coverage, slower speeds
- Jackson Parish, LA: less cable coverage, slower speeds
- Jasper County, GA: less cable coverage, faster speeds
- Jasper County, IL: less cable coverage, slower speeds
- Jasper County, MS: less cable coverage, slower speeds
- Jay County, IN: less cable coverage, slower speeds
- Jayuya Municipio, PR: less cable coverage, slower speeds
- Jeff Davis County, GA: less cable coverage, slower speeds
- Jefferson County, FL: less cable coverage, slower speeds