In Pennington County there is 1 residential DSL provider covering 91.13% of the county. The average home can get speeds up to 44 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 Pennington County, SD.
To see availability maps for all providers including fiber, cable, DSL, and more in Pennington County, SD please click below.
Pennington County, SD Availability Maps
DSL Internet Service Provider in Pennington 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 Pennington County are not shown.
Pennington 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 Pennington County is DSL internet available?
DSL Internet Availability Key
DSL is available in 91.13% of Pennington 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 Pennington County above to see who has service at your home.
How fast is DSL internet in Pennington County?
The map below shows maximum DSL internet speeds by area in Pennington County.
DSL Internet Speed Key
The average Pennington County home can get up to 44 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 100 Mbps, which 5.30% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 24.03% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Pennington County.
DSL internet speeds tend to be faster in the southwest parts of Pennington County, and slower in the east areas of the county.
Is DSL the fastest internet I can get in Pennington County?
The fastest internet for you may vary based on where in Pennington County you live. In general, cable competes most often with DSL in the county.
- Fiber is the fastest internet type for 21.22% of Pennington County homes.
- Cable is fastest for 73.40% of the county.
- DSL is fastest for 1.54%.
- Fixed wireless is fastest for 3.19%.
- Satellite internet may be the only option for less than 1% of Pennington County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Pennington County, along with details on where in Pennington County and at what speeds.
Centurylink DSL in Pennington County, SD
Centurylink DSL coverage
About 90.51%, or 98,859 people, have Centurylink DSL internet available to them in the county. The company covers the entire Pennington County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Pennington County.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Pennington County. Versus other DSL providers in the area, Centurylink DSL is average. There are 5 different maximum speeds throughout Pennington County. The fastest plan anyone in Pennington County can order from Centurylink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Pennington County customers is up to 44 Mbps.
Show all download speeds
- 5.7% up to 100.0 Mbps
- 4.7% up to 80.0 Mbps
- 33.2% up to 60.0 Mbps
- 29.9% up to 40.0 Mbps
- 26.5% up to 10.0 Mbps
Centurylink DSL upload speeds
In Pennington County download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is below average where upload speeds are concerned, and average compared to other Pennington County DSL providers. Centurylink offers 6 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 Pennington County is up to 40 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 4.3 Mbps.
Show all upload speeds
- 1.1% up to 40.0 Mbps
- 0.6% up to 20.0 Mbps
- 9.2% up to 10.0 Mbps
- 34.1% up to 5.0 Mbps
- 28.6% up to 3.0 Mbps
- 26.5% up to 1.0 Mbps
Pennington County DSL by Area
This information is most helpful to those looking for homes or considering moving to Pennington County or any of the areas nearby.
How does DSL internet in Pennington County compare to the rest of South Dakota?
DSL internet speeds in Pennington County are much faster versus the average speeds in South Dakota: 0.00 Mbps in South Dakota versus 44 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in South Dakota is 0.00% versus 91.13% in Pennington County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Pennington 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
- Weston County, WY: less DSL coverage, slower speeds
- Lyman County, SD: less DSL coverage, slower speeds
- Washakie County, WY: less DSL coverage, faster speeds
- Lake County, SD: less DSL coverage, slower speeds
- Moody County, SD: less DSL coverage, slower speeds
- Pipestone County, MN: less DSL coverage, slower speeds
- Murray County, MN: less DSL coverage, slower speeds
- Cottonwood County, MN: less DSL coverage, slower speeds
- Fremont County, ID: more DSL coverage, slower speeds
- Watonwan County, MN: less DSL coverage, slower speeds
Counties with Similar Populations
- Albemarle County, VA: less DSL coverage, faster speeds
- Douglas County, KS: less DSL coverage, faster speeds
- Cowlitz County, WA: less DSL coverage, faster speeds
- Columbiana County, OH: less DSL coverage, slower speeds
- Cecil County, MD: less DSL coverage, slower speeds
- Cass County, MO: more DSL coverage, faster speeds
- Carroll County, GA: less DSL coverage, faster speeds
- Calhoun County, AL: less DSL coverage, faster speeds
- Bradley County, TN: less DSL coverage, faster speeds
- Bay County, MI: less DSL coverage, faster speeds