In Grant County there are 2 residential Fiber providers covering 96.19% of the county. The average home can get speeds up to 1,032 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 Grant County, SD.
To see availability maps for all providers including fiber, cable, DSL, and more in Grant County, SD please click below.
Grant County, SD Availability Maps
Fiber Internet Service Providers in Grant 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 Grant County are not shown.
Grant 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 Grant County is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 96.19% of Grant 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 Grant County above to see who has service at your home.
How fast is fiber internet in Grant County?
The map below shows maximum fiber internet speeds by area in Grant County.
Fiber Internet Speed Key
The average Grant County home can get up to 1,032 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 1,500 Mbps, which 6.06% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 90.13% 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 Grant County.
Fiber internet speeds tend to be faster in the northwest parts of Grant County, and slower in the central areas of the county.
Is fiber the fastest internet I can get in Grant County?
The fastest internet for you may vary based on where in Grant County you live. In general, cable competes most often with fiber in the county.
- Fiber is the fastest internet type for 45.91% of Grant County homes.
- Cable is fastest for 53.90% 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 Grant County homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Grant County, along with details on where in Grant County and at what speeds.
Interstate Telecommunications Cooperative Fiber in Grant County, SD
ITC fiber coverage
About 90.70%, or 6,853 people, have ITC fiber internet available to them in the county. The company covers the entire Grant County area. ITC is a large internet service provider internet service providers in the US, with internet service available in most of Grant County.
Interstate Telecommunications Cooperative fiber download speeds
ITC is above average when comparing download speeds to all other internet providers in Grant County. Versus other fiber providers in the area, ITC fiber is above average. There are no different maximum speeds throughout Grant County. The fastest plan anyone in Grant County can order from ITC goes up to 1,000 Mbps, and all Grant 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 Grant County download speeds tend to be equal to than upload speeds for ITC fiber. Compared to other ISPs, ITC is above average where upload speeds are concerned, and above average compared to other Grant County fiber providers. ITC offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Grant 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
RC Technologies Fiber in Grant County, SD
RC Technologies fiber coverage
About 6.06%, or 458 people, have RC Technologies fiber internet available to them in the county. The company covers the northwest, west, north, and northeast Grant County area. RC Technologies is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Grant County.
RC Technologies fiber download speeds
RC Technologies is the fastest when comparing download speeds to all other internet providers in Grant County. Versus other fiber providers in the area, RC Technologies fiber is the fastest. There are no different maximum speeds throughout Grant County. The fastest plan anyone in Grant County can order from RC Technologies goes up to 1,500 Mbps, and all Grant County customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
RC Technologies fiber upload speeds
In Grant County download speeds tend to be equal to than upload speeds for RC Technologies fiber. Compared to other ISPs, RC Technologies is the fastest where upload speeds are concerned, and the fastest compared to other Grant County fiber providers. RC Technologies offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Grant County is up to 1,500 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,500.0 Mbps
Grant County Fiber by Area
This information is most helpful to those looking for homes or considering moving to Grant County or any of the areas nearby.
How does fiber internet in Grant County compare to the rest of South Dakota?
Fiber internet speeds in Grant County are much faster versus the average speeds in South Dakota: 0.00 Mbps in South Dakota versus 1,032 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in South Dakota is 0.00% versus 96.19% in Grant County.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Grant 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
- Big Stone County, MN: less fiber coverage, slower speeds
- Lac qui Parle County, MN: more fiber coverage, slower speeds
- Codington County, SD: less fiber coverage, faster speeds
- Roberts County, SD: more fiber coverage, faster speeds
- Deuel County, SD: more fiber coverage, slower speeds
- Traverse County, MN: less fiber coverage, slower speeds
- Day County, SD: more fiber coverage, slower speeds
- Stevens County, MN: more fiber coverage, slower speeds
- Swift County, MN: less fiber coverage, faster speeds
- Yellow Medicine County, MN: less fiber coverage, faster speeds
Counties with Similar Populations
- Garza County, TX: more fiber coverage, faster speeds
- Franklin County, AR: more fiber coverage, slower speeds
- Franklin County, FL: less fiber coverage, faster speeds
- Franklin County, ID: less fiber coverage, faster speeds
- Franklin County, MS: less fiber coverage, faster speeds
- Franklin County, TX: less fiber coverage, faster speeds
- Garfield County, MT: less fiber coverage, slower speeds
- Garfield County, UT: less fiber coverage, slower speeds
- Garrard County, KY: less fiber coverage, faster speeds
- Franklin City, VA: less fiber coverage, slower speeds