In Cass County there are 2 residential DSL providers covering 83.57% of the county. The average home can get speeds up to 52 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 Cass County, ND.
To see availability maps for all providers including fiber, cable, DSL, and more in Cass County, ND please click below.
Cass County, ND Availability Maps
DSL Internet Service Providers in Cass 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 Cass County are not shown.
Cass 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 Cass County is DSL internet available?
DSL Internet Availability Key
DSL is available in 83.57% of Cass 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 Cass County above to see who has service at your home.
How fast is DSL internet in Cass County?
The map below shows maximum DSL internet speeds by area in Cass County.
DSL Internet Speed Key
The average Cass County home can get up to 52 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 140 Mbps, which 1.02% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 19.88% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Cass County.
DSL internet speeds tend to be faster in the southeast parts of Cass County, and slower in the west areas of the county.
Is DSL the fastest internet I can get in Cass County?
The fastest internet for you may vary based on where in Cass County you live. In general, cable competes most often with DSL in the county.
- Fiber is the fastest internet type for 18.34% of Cass County homes.
- Cable is fastest for 78.08% 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 2.61% of Cass County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Cass County, along with details on where in Cass County and at what speeds.
Centurylink DSL in Cass County, ND
Centurylink DSL coverage
About 82.88%, or 152,933 people, have Centurylink DSL internet available to them in the county. The company covers the entire Cass County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Cass County.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Cass County. Versus other DSL providers in the area, Centurylink DSL is average. There are 7 different maximum speeds throughout Cass County. The fastest plan anyone in Cass County can order from Centurylink goes up to 140 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Cass County customers is up to 49 Mbps.
Show all download speeds
- 1.2% up to 140.0 Mbps
- 0.0% up to 120.0 Mbps
- 9.0% up to 100.0 Mbps
- 9.1% up to 80.0 Mbps
- 30.4% up to 60.0 Mbps
- 24.4% up to 40.0 Mbps
- 25.9% up to 10.0 Mbps
Centurylink DSL upload speeds
In Cass 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 below average compared to other Cass 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 Cass 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 5.3 Mbps.
Show all upload speeds
- 1.8% up to 40.0 Mbps
- 2.2% up to 20.0 Mbps
- 16.1% up to 10.0 Mbps
- 34.2% up to 5.0 Mbps
- 19.9% up to 3.0 Mbps
- 25.9% up to 1.0 Mbps
Fidium Fiber DSL in Cass County, ND
Fidium DSL coverage
About 11.32%, or 20,895 people, have Fidium DSL internet available to them in the county. The company covers the central, south, southeast, east, and northeast Cass County area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Cass County.
Fidium Fiber DSL download speeds
Fidium is below average when comparing download speeds to all other internet providers in Cass County. Versus other DSL providers in the area, Fidium DSL is the fastest. There are 5 different maximum speeds throughout Cass County. The fastest plan anyone in Cass County can order from Fidium goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Cass County customers is up to 73 Mbps.
Show all download speeds
- 44.3% up to 100.0 Mbps
- 7.3% up to 75.0 Mbps
- 46.2% up to 50.0 Mbps
- 0.3% up to 40.0 Mbps
- 2.0% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In Cass County download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is below average where upload speeds are concerned, and the fastest compared to other Cass County DSL providers. Fidium 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 Cass County is up to 30 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Fidium customers can get speeds up to 21 Mbps.
Show all upload speeds
- 0.6% up to 30.0 Mbps
- 44.3% up to 25.0 Mbps
- 45.8% up to 20.0 Mbps
- 0.3% up to 10.0 Mbps
- 7.1% up to 5.0 Mbps
- 2.0% up to 1.0 Mbps
Cass County DSL by Area
This information is most helpful to those looking for homes or considering moving to Cass County or any of the areas nearby.
How does DSL internet in Cass County compare to the rest of North Dakota?
DSL internet speeds in Cass County are much faster versus the average speeds in North Dakota: 0.00 Mbps in North Dakota versus 52 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in North Dakota is 0.00% versus 83.57% in Cass County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Cass 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
- Clay County, MN: less DSL coverage, slower speeds
- Norman County, MN: less DSL coverage, slower speeds
- Wilkin County, MN: less DSL coverage, slower speeds
- Becker County, MN: more DSL coverage, slower speeds
- Barnes County, ND: less DSL coverage, slower speeds
- Mahnomen County, MN: less DSL coverage, faster speeds
- Otter Tail County, MN: more DSL coverage, slower speeds
- Stutsman County, ND: less DSL coverage, slower speeds
- Wadena County, MN: less DSL coverage, slower speeds
- Hubbard County, MN: less DSL coverage, slower speeds
Counties with Similar Populations
- Beaufort County, SC: less DSL coverage, slower speeds
- El Dorado County, CA: less DSL coverage, slower speeds
- Livingston County, MI: less DSL coverage, faster speeds
- Boone County, MO: more DSL coverage, faster speeds
- Butler County, PA: less DSL coverage, faster speeds
- Shasta County, CA: less DSL coverage, slower speeds
- DeSoto County, MS: more DSL coverage, faster speeds
- Hernando County, FL: less DSL coverage, slower speeds
- Imperial County, CA: less DSL coverage, slower speeds
- Muskegon County, MI: less DSL coverage, slower speeds