In Clark County there are 2 residential Fiber providers covering 95.23% of the county. The average home can get speeds up to 1,000 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 Fiber internet providers in Clark County, SD.
To see availability maps for all providers including fiber, cable, DSL, and more in Clark County, SD please click below.
Clark County, SD Availability Maps
Fiber Internet Service Providers in Clark 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 Clark County are not shown.
Clark 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 Clark County is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 95.23% of Clark County. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is ITC. Call one of the companies with service in Clark County above to see who has service at your home.
How fast is fiber internet in Clark County?
The map below shows maximum fiber internet speeds by area in Clark County.
Fiber Internet Speed Key
The average Clark County home can get up to 1,000 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 1,000 Mbps, which 95.23% of residents can get.
Is fiber the fastest internet I can get in Clark County?
The fastest internet for you may vary based on where in Clark County you live. In general, satellite competes most often with fiber in the county.
- Fiber is the fastest internet type for 95.23% of Clark County homes.
- Cable is fastest for less than 1% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.51%.
- Satellite internet may be the only option for 3.26% of Clark County homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Clark County, along with details on where in Clark County and at what speeds.
Interstate Telecommunications Cooperative Fiber in Clark County, SD
ITC fiber coverage
About 93.28%, or 3,579 people, have ITC fiber internet available to them in the county. The company covers the entire Clark County area. ITC is a large internet service provider internet service providers in the US, with internet service available in most of Clark County.
Interstate Telecommunications Cooperative fiber download speeds
ITC is one of the fastest when comparing download speeds to all other internet providers in Clark County. Versus other fiber providers in the area, ITC fiber is one of the fastest. There are no different maximum speeds throughout Clark County. The fastest plan anyone in Clark County can order from ITC goes up to 1,000 Mbps, and all Clark County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Interstate Telecommunications Cooperative fiber upload speeds
In Clark County download speeds tend to be equal to than upload speeds for ITC fiber. Compared to other ISPs, ITC is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Clark County fiber providers. ITC offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Clark 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
NVC Fiber in Clark County, SD
NVC fiber coverage
About 1.46%, or 56 people, have NVC fiber internet available to them in the county. The company covers the northwest Clark County area. NVC is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Clark County.
NVC fiber download speeds
NVC is one of the fastest when comparing download speeds to all other internet providers in Clark County. Versus other fiber providers in the area, NVC fiber is one of the fastest. There are no different maximum speeds throughout Clark County. The fastest plan anyone in Clark County can order from NVC goes up to 1,000 Mbps, and all Clark County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
NVC fiber upload speeds
In Clark County download speeds tend to be faster than than upload speeds for NVC fiber. Compared to other ISPs, NVC is below average where upload speeds are concerned, and the slowest compared to other Clark County fiber providers. NVC offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Clark County is up to 200 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 200.0 Mbps
Clark County Fiber by Area
This information is most helpful to those looking for homes or considering moving to Clark County or any of the areas nearby.
How does fiber internet in Clark County compare to the rest of South Dakota?
Fiber internet speeds in Clark County are much faster versus the average speeds in South Dakota: 0.00 Mbps in South Dakota versus 1,000 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in South Dakota is 0.00% versus 95.23% in Clark County.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Clark County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber 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
- Codington County, SD: less fiber coverage, faster speeds
- Spink County, SD: less fiber coverage, similar speeds
- Deuel County, SD: more fiber coverage, faster speeds
- Lac qui Parle County, MN: more fiber coverage, faster speeds
- Yellow Medicine County, MN: less fiber coverage, faster speeds
- Chippewa County, MN: less fiber coverage, faster speeds
- Sully County, SD: more fiber coverage, similar speeds
- Renville County, MN: less fiber coverage, similar speeds
- McLeod County, MN: less fiber coverage, faster speeds
- Ziebach County, SD: more fiber coverage, slower speeds
Counties with Similar Populations
- Rolette County, ND: more fiber coverage, faster speeds
- San Miguel County, CO: less fiber coverage, slower speeds
- Humphreys County, MS: less fiber coverage, faster speeds
- Hutchinson County, SD: more fiber coverage, faster speeds
- Hyde County, NC: less fiber coverage, faster speeds
- Saguache County, CO: less fiber coverage, faster speeds
- Rosebud County, MT: less fiber coverage, similar speeds
- Iron County, MI: less fiber coverage, slower speeds
- Iron County, MO: less fiber coverage, similar speeds
- Roosevelt County, MT: less fiber coverage, similar speeds