In Corson County there are 6 residential internet providers covering 93.77% of the county. The average home can get speeds up to 872 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.
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6 Internet Service Providers in Corson 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 Corson County are not shown.
Corson 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
Availability maps for all providers in Corson County
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
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Internet service is available in 93.77% of Corson County. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is WRT. Now you can call companies in Corson County with more confidence that they might be available.
How fast are internet speeds in Corson County?
The map below shows maximum internet speeds by area in Corson County.
Internet Speed Key
The average Corson County home can get up to 872 Mbps on their internet plan. For most people, the fastest download speed in the county is 1,000 Mbps, which 80.09% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 4.79% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Corson County.
Internet speeds tend to be faster in the east parts of Corson County, and slower in the northwest areas of the county.
What type of internet should I choose in Corson County?
The fastest internet for you may vary based on where in Corson County you live. If speed is your main concern, fiber will be the fastest internet in the county.
- Fiber is the fastest internet type for 88.57% of Corson County homes.
- Cable is fastest for less than 1% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 5.20%.
- Satellite internet may be the only option for 6.23% of Corson County homes.
Internet Market Health in Corson County
Internet Competition Key
The map shows how competitive the Corson County internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in Corson County based on what connections the average home has availabile:
- Average number of internet service providers to a home: 1.9 (very unhealthy)
- Average types of service (fiber, cable, DSL, etc): 1.9 (very unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 1.0 (very unhealthy)
Overall, competition is very unhealthy.
Corson County internet customers have the ability to buy internet service from 1 to 3 different providers, depending on where they live. For different types of service, Corson County homes have between 1 and 2 options. The type(s) of service available are fiber and fixed wireless, though these may vary depending on the region within the county.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. Corson County internet customers who want faster speeds have between 0 and 3 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, Corson County badly needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in Corson County, along with details on where in Corson County and at what speeds.
WRT Fiber in Corson County, SD
WRT fiber coverage
About 80.09%, or 3,125 people, have WRT fiber internet available to them in the county. The company covers the east, central, southeast, northeast, south, and north Corson County area. WRT is an average-sized internet service provider internet service providers in the US, with internet service available in much of Corson County.
WRT fiber download speeds
WRT is the fastest when comparing download speeds to all other internet providers in Corson County. Versus other fiber providers in the area, WRT fiber is the fastest. There are no different maximum speeds throughout Corson County. The fastest plan anyone in Corson County can order from WRT goes up to 1,000 Mbps, and all Corson County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
WRT fiber upload speeds
In Corson County download speeds tend to be equal to than upload speeds for WRT fiber. Compared to other ISPs, WRT is the fastest where upload speeds are concerned, and the fastest compared to other Corson County fiber providers. WRT offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Corson County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
West River Cooperative Telephone Fiber in Corson County, SD
West River Cooperative Telephone fiber coverage
About 6.89%, or 269 people, have West River Cooperative Telephone fiber internet available to them in the county. The company covers the northwest, north, west, and southwest Corson County area. West River Cooperative Telephone is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Corson County.
West River Cooperative Telephone fiber download speeds
West River Cooperative Telephone is average when comparing download speeds to all other internet providers in Corson County. Versus other fiber providers in the area, West River Cooperative Telephone fiber is the slowest. There are 2 different maximum speeds throughout Corson County. The fastest plan anyone in Corson County can order from West River Cooperative Telephone goes up to 250 Mbps, the slowest package only goes up to 100 Mbps, and the county-wide average maximum speed for Corson County customers is up to 178 Mbps.
Show all download speeds
- 52.0% up to 250.0 Mbps
- 48.0% up to 100.0 Mbps
West River Cooperative Telephone fiber upload speeds
In Corson County download speeds tend to be equal to than upload speeds for West River Cooperative Telephone fiber. Compared to other ISPs, West River Cooperative Telephone is above average where upload speeds are concerned, and below average compared to other Corson County fiber providers. West River Cooperative Telephone offers 2 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Corson County is up to 250 Mbps. Some customers have slower plan choices, which only go up to 100 Mbps. On average, West River Cooperative Telephone customers can get speeds up to 178 Mbps.
Show all upload speeds
- 52.0% up to 250.0 Mbps
- 48.0% up to 100.0 Mbps
Cheyenne River Sioux Tribe Telephone Authority (CRST) Fiber in Corson County, SD
CRST fiber coverage
About 1.69%, or 66 people, have CRST fiber internet available to them in the county. The company covers the southwest, south, and west Corson County area. CRST is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Corson County.
Cheyenne River Sioux Tribe Telephone Authority (CRST) fiber download speeds
CRST is average when comparing download speeds to all other internet providers in Corson County. Versus other fiber providers in the area, CRST fiber is below average. There are no different maximum speeds throughout Corson County. The fastest plan anyone in Corson County can order from CRST goes up to 250 Mbps, and all Corson County customers can get this speed.
Show all download speeds
- 100.0% up to 250.0 Mbps
Cheyenne River Sioux Tribe Telephone Authority (CRST) fiber upload speeds
In Corson County download speeds tend to be faster than than upload speeds for CRST fiber. Compared to other ISPs, CRST is below average where upload speeds are concerned, and the slowest compared to other Corson County fiber providers. CRST offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Corson County is up to 100 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 100.0 Mbps
Standing Rock Telecommunications Fixed Wireless in Corson County, SD
Standing Rock Telecom fixed wireless coverage
About 84.29%, or 3,289 people, have Standing Rock Telecom fixed wireless internet available to them in the county. The company covers the east, central, southeast, northeast, northwest, north, south, and west Corson County area. Standing Rock Telecom is a small internet service provider internet service providers in the US, with internet service available in much of Corson County.
Standing Rock Telecommunications fixed wireless download speeds
Standing Rock Telecom is the slowest when comparing download speeds to all other internet providers in Corson County. Versus other fixed wireless providers in the area, Standing Rock Telecom fixed wireless is the slowest. There are no different maximum speeds throughout Corson County. The fastest plan anyone in Corson County can order from Standing Rock Telecom goes up to 10 Mbps, and all Corson County customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Standing Rock Telecommunications fixed wireless upload speeds
In Corson County download speeds tend to be faster than than upload speeds for Standing Rock Telecom fixed wireless. Compared to other ISPs, Standing Rock Telecom is the slowest where upload speeds are concerned, and the slowest compared to other Corson County fixed wireless providers. Standing Rock Telecom offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Corson County is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Corson County Internet by Area
This information is most helpful to those looking for homes or considering moving to Corson County or any of the areas nearby.
How does internet in Corson County compare to the rest of South Dakota?
Internet speeds in Corson County are slower versus the average speeds in South Dakota: 1,953 Mbps in South Dakota versus 872 Mbps in the county. The state has similar internet availability compared to the county. Average internet coverage in South Dakota is 98.12% versus 93.77% in Corson County.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around Corson County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does internet service 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
- Campbell County, SD: more internet coverage, faster speeds
- Perkins County, SD: more internet coverage, slower speeds
- McPherson County, SD: more internet coverage, faster speeds
- Harding County, SD: more internet coverage, slower speeds
- Marshall County, SD: more internet coverage, faster speeds
- Carter County, MT: less internet coverage, slower speeds
- Roberts County, SD: more internet coverage, faster speeds
- Traverse County, MN: more internet coverage, slower speeds
- Pope County, MN: more internet coverage, faster speeds
- Benton County, MN: more internet coverage, slower speeds
Counties with Similar Populations
- Cochran County, TX: more internet coverage, faster speeds
- Clark County, ID: more internet coverage, slower speeds
- Vieques Municipio, PR: more internet coverage, faster speeds
- Clark County, MO: more internet coverage, faster speeds
- Van Buren County, TN: more internet coverage, faster speeds
- Clarke County, IA: more internet coverage, faster speeds
- Van Buren County, IA: more internet coverage, slower speeds
- Valley County, MT: more internet coverage, slower speeds
- Valley County, ID: more internet coverage, slower speeds
- Clay County, NC: more internet coverage, faster speeds