In Grant County there is 1 residential DSL provider covering 59.60% of the county. The average home can get speeds up to 22 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 DSL 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
DSL Internet Service Provider 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 DSL internet available?
DSL Internet Availability Key
DSL is available in 59.60% of Grant County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Centurylink. Call one of the companies with service in Grant County above to see who has service at your home.
How fast is DSL internet in Grant County?
The map below shows maximum DSL internet speeds by area in Grant County.
DSL Internet Speed Key
The average Grant County home can get up to 22 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 60 Mbps, which 3.44% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 38.58% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Grant County.
DSL internet speeds tend to be faster in the west parts of Grant County, and slower in the south areas of the county.
Is DSL 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 DSL 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.
DSL 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.
Centurylink DSL in Grant County, SD
Centurylink DSL coverage
About 59.60%, or 4,503 people, have Centurylink DSL internet available to them in the county. The company covers the central, east, north, northeast, west, south, southwest, and southeast Grant County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Grant County.
Centurylink DSL download speeds
Centurylink is the slowest when comparing download speeds to all other internet providers in Grant County. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 3 different maximum speeds throughout Grant County. The fastest plan anyone in Grant County can order from Centurylink goes up to 60 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Grant County customers is up to 22 Mbps.
Show all download speeds
- 5.8% up to 60.0 Mbps
- 29.5% up to 40.0 Mbps
- 64.7% up to 10.0 Mbps
Centurylink DSL upload speeds
In Grant County download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is the slowest where upload speeds are concerned, and the fastest compared to other Grant County DSL providers. Centurylink offers 3 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 Grant County is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 1.8 Mbps.
Show all upload speeds
- 5.8% up to 5.0 Mbps
- 29.5% up to 3.0 Mbps
- 64.7% up to 1.0 Mbps
Grant County DSL 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 DSL internet in Grant County compare to the rest of South Dakota?
DSL internet speeds in Grant County are much faster versus the average speeds in South Dakota: 0.00 Mbps in South Dakota versus 22 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in South Dakota is 0.00% versus 59.60% in Grant County.
What zip codes have DSL internet?
DSL 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 DSL 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 DSL coverage, faster speeds
- Lac qui Parle County, MN: less DSL coverage, slower speeds
- Codington County, SD: more DSL coverage, faster speeds
- Roberts County, SD: less DSL coverage, faster speeds
- Deuel County, SD: less DSL coverage, slower speeds
- Traverse County, MN: less DSL coverage, faster speeds
- Day County, SD: less DSL coverage, faster speeds
- Stevens County, MN: less DSL coverage, slower speeds
- Swift County, MN: less DSL coverage, faster speeds
- Yellow Medicine County, MN: more DSL coverage, faster speeds
Counties with Similar Populations
- Garza County, TX: less DSL coverage, faster speeds
- Franklin County, AR: more DSL coverage, faster speeds
- Franklin County, FL: more DSL coverage, faster speeds
- Franklin County, ID: more DSL coverage, slower speeds
- Franklin County, MS: less DSL coverage, slower speeds
- Franklin County, TX: more DSL coverage, faster speeds
- Garfield County, MT: less DSL coverage, slower speeds
- Garfield County, UT: less DSL coverage, faster speeds
- Garrard County, KY: more DSL coverage, faster speeds
- Gasconade County, MO: more DSL coverage, faster speeds