In 57720 there are 4 residential internet providers covering 98.94% of the zip. The average home can get speeds up to 286 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.
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4 Internet Service Providers in 57720
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 57720 are not shown.
57720 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
Availability maps for all providers in 57720
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
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Internet service is available in 98.94% of 57720. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is West River Cooperative Telephone. Now you can call companies in 57720 with more confidence that they might be available.
How fast are internet speeds in 57720?
The map below shows maximum internet speeds by area in 57720.
Internet Speed Key
The average 57720 home can get up to 286 Mbps on their internet plan. For most people, the fastest download speed in the zip is 1,000 Mbps, which 4.76% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 94.18% of homes can only purchase plans up to 250 Mbps. See the internet provider details below for info about their speed and coverage in 57720.
Internet speeds tend to be faster in the northwest parts of 57720, and slower in the central areas of the zip.
What type of internet should I choose in 57720?
The fastest internet for you may vary based on where in 57720 you live. If speed is your main concern, fiber will be the fastest internet in the zip.
- Fiber is the fastest internet type for 98.94% of 57720 homes.
- Cable is fastest for less than 1% of the zip.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for 1.06% of 57720 homes.
Internet Market Health in 57720
Internet Competition Key
The map shows how competitive the 57720 internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in 57720 based on what connections the average home has availabile:
- Average number of internet service providers to a home: 1.0 (very unhealthy)
- Average types of service (fiber, cable, DSL, etc): 1.0 (very unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 1.0 (very unhealthy)
Overall, competition is very unhealthy.
57720 internet customers have the ability to buy internet service from 1 to 2 different providers, depending on where they live. For different types of service, 57720 homes have 1 option. The type(s) of service available are fiber, though these may vary depending on the region within the zip.
When it comes to broadband download speeds faster than 25 Mbps, the situation is similar. 57720 internet customers who want faster speeds have between 1 and 2 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, 57720 badly needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in 57720, along with details on where in 57720 and at what speeds.
West River Cooperative Telephone Fiber in 57720, SD
West River Cooperative Telephone fiber coverage
About 98.94%, or 748 people, have West River Cooperative Telephone fiber internet available to them in the zip. The company covers the entire 57720 area. West River Cooperative Telephone is a small internet service provider internet service providers in the US, with internet service available in most of 57720.
West River Cooperative Telephone fiber download speeds
West River Cooperative Telephone is the slowest when comparing download speeds to all other internet providers in 57720. Versus other fiber providers in the area, West River Cooperative Telephone fiber is the slowest. There are no different maximum speeds throughout 57720. The fastest plan anyone in 57720 can order from West River Cooperative Telephone goes up to 250 Mbps, and all 57720 customers can get this speed.
Show all download speeds
- 100.0% up to 250.0 Mbps
West River Cooperative Telephone fiber upload speeds
In 57720 download speeds tend to be equal to than upload speeds for West River Cooperative Telephone fiber. Compared to other ISPs, West River Cooperative Telephone is the slowest where upload speeds are concerned, and the slowest compared to other 57720 fiber providers. West River Cooperative Telephone offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57720 is up to 250 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 250.0 Mbps
Consolidated (North Dakota) Fiber in 57720, SD
Consolidated fiber coverage
About 4.76%, or 36 people, have Consolidated fiber internet available to them in the zip. The company covers the northwest, north, and northeast 57720 area. Consolidated is a small internet service provider internet service providers in the US, with internet service available in a very small piece of 57720.
Consolidated (North Dakota) fiber download speeds
Consolidated is the fastest when comparing download speeds to all other internet providers in 57720. Versus other fiber providers in the area, Consolidated fiber is the fastest. There are no different maximum speeds throughout 57720. The fastest plan anyone in 57720 can order from Consolidated goes up to 1,000 Mbps, and all 57720 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Consolidated (North Dakota) fiber upload speeds
In 57720 download speeds tend to be equal to than upload speeds for Consolidated fiber. Compared to other ISPs, Consolidated is the fastest where upload speeds are concerned, and the fastest compared to other 57720 fiber providers. Consolidated offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57720 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
57720 Internet by Area
This information is most helpful to those looking for homes or considering moving to 57720 or any of the areas nearby.
How does internet in 57720 compare to the rest of South Dakota?
Internet speeds in 57720 are slower versus the average speeds in South Dakota: 1,953 Mbps in South Dakota versus 286 Mbps in the zip. The state has similar internet availability compared to the zip. Average internet coverage in South Dakota is 98.12% versus 98.94% in 57720.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around 57720 are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does internet service look like in other zip codes?
Below are zip codes nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Zip Codes
- 57724, SD: less internet coverage, slower speeds
- 57651, SD: less internet coverage, faster speeds
- 59319, MT: less internet coverage, slower speeds
- 57649, SD: less internet coverage, faster speeds
- 57620, SD: less internet coverage, slower speeds
- 59332, MT: less internet coverage, slower speeds
- 57644, SD: less internet coverage, faster speeds
- 59317, MT: less internet coverage, faster speeds
- 59343, MT: more internet coverage, faster speeds
- 57633, SD: less internet coverage, slower speeds
Zip Codes with Similar Populations
- 40855, KY: more internet coverage, faster speeds
- 82442, WY: less internet coverage, faster speeds
- 82327, WY: less internet coverage, slower speeds
- 81242, CO: less internet coverage, faster speeds
- 80833, CO: less internet coverage, faster speeds
- 79852, TX: less internet coverage, faster speeds
- 76070, TX: more internet coverage, faster speeds
- 49129, MI: more internet coverage, faster speeds
- 43359, OH: more internet coverage, faster speeds
- 41568, KY: less internet coverage, faster speeds