In 57021 there are 9 residential internet providers covering 100.00% of the zip. The average home can get speeds up to 3,847 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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9 Internet Service Providers in 57021
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 57021 are not shown.
57021 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 57021
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 100.00% of 57021. 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 Bluepeak. Now you can call companies in 57021 with more confidence that they might be available.
How fast are internet speeds in 57021?
The map below shows maximum internet speeds by area in 57021.
Internet Speed Key
The average 57021 home can get up to 3,847 Mbps on their internet plan. For most people, the fastest download speed in the zip is 5,000 Mbps, which 71.18% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 28.82% 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 57021.
Internet speeds tend to be faster in the east parts of 57021, and slower in the central areas of the zip.
What type of internet should I choose in 57021?
The fastest internet for you may vary based on where in 57021 you live. If speed is your main concern, fiber will be the fastest internet in the zip.
- Fiber is the fastest internet type for 76.42% of 57021 homes.
- Cable is fastest for 23.58% 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 less than 1% of 57021 homes.
Internet Market Health in 57021
Internet Competition Key
The map shows how competitive the 57021 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 57021 based on what connections the average home has availabile:
- Average number of internet service providers to a home: 3.3 (very unhealthy)
- Average types of service (fiber, cable, DSL, etc): 2.2 (unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 3.2 (unhealthy)
Overall, competition is unhealthy.
57021 internet customers have the ability to buy internet service from 2 to 8 different providers, depending on where they live. For different types of service, 57021 homes have between 2 and 3 options. The type(s) of service available are fixed wireless, fiber, cable, and dsl, 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 worse. 57021 internet customers who want faster speeds have between 2 and 7 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, 57021 needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in 57021, along with details on where in 57021 and at what speeds.
Bluepeak Fiber in 57021, SD
Bluepeak fiber coverage
About 71.18%, or 163 people, have Bluepeak fiber internet available to them in the zip. The company covers the entire 57021 area. Bluepeak is a large internet service provider internet service providers in the US, with internet service available in much of 57021.
Bluepeak fiber download speeds
Bluepeak is the fastest when comparing download speeds to all other internet providers in 57021. Versus other fiber providers in the area, Bluepeak fiber is the fastest. There are no different maximum speeds throughout 57021. The fastest plan anyone in 57021 can order from Bluepeak goes up to 5,000 Mbps, and all 57021 customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
Bluepeak fiber upload speeds
In 57021 download speeds tend to be equal to than upload speeds for Bluepeak fiber. Compared to other ISPs, Bluepeak is the fastest where upload speeds are concerned, and the fastest compared to other 57021 fiber providers. Bluepeak offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57021 is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
Bluepeak Cable in 57021, SD
Bluepeak cable coverage
About 28.82%, or 66 people, have Bluepeak cable internet available to them in the zip. The company covers the central 57021 area. Bluepeak is a large internet service provider internet service providers in the US, with internet service available in a small portion of 57021.
Bluepeak cable download speeds
Bluepeak is above average when comparing download speeds to all other internet providers in 57021. Versus other cable providers in the area, Bluepeak cable is the fastest. There are no different maximum speeds throughout 57021. The fastest plan anyone in 57021 can order from Bluepeak goes up to 1,000 Mbps, and all 57021 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Bluepeak cable upload speeds
In 57021 download speeds tend to be faster than than upload speeds for Bluepeak cable. Compared to other ISPs, Bluepeak is below average where upload speeds are concerned, and the fastest compared to other 57021 cable providers. Bluepeak offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57021 is up to 30 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 30.0 Mbps
Alliance Communications Fiber in 57021, SD
Alliance Communications fiber coverage
About 19.65%, or 45 people, have Alliance Communications fiber internet available to them in the zip. The company covers the northeast 57021 area. Alliance Communications is a large internet service provider internet service providers in the US, with internet service available in a small portion of 57021.
Alliance Communications fiber download speeds
Alliance Communications is above average when comparing download speeds to all other internet providers in 57021. Versus other fiber providers in the area, Alliance Communications fiber is one of the slowest. There are no different maximum speeds throughout 57021. The fastest plan anyone in 57021 can order from Alliance Communications goes up to 1,000 Mbps, and all 57021 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Alliance Communications fiber upload speeds
In 57021 download speeds tend to be equal to than upload speeds for Alliance Communications fiber. Compared to other ISPs, Alliance Communications is above average where upload speeds are concerned, and one of the slowest compared to other 57021 fiber providers. Alliance Communications offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57021 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Bluepeak DSL in 57021, SD
Bluepeak DSL coverage
About 13.54%, or 31 people, have Bluepeak DSL internet available to them in the zip. The company covers the northeast 57021 area. Bluepeak is a large internet service provider internet service providers in the US, with internet service available in a very small piece of 57021.
Bluepeak DSL download speeds
Bluepeak is the slowest when comparing download speeds to all other internet providers in 57021. Versus other DSL providers in the area, Bluepeak DSL is the fastest. There are no different maximum speeds throughout 57021. The fastest plan anyone in 57021 can order from Bluepeak goes up to 10 Mbps, and all 57021 customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Bluepeak DSL upload speeds
In 57021 download speeds tend to be faster than than upload speeds for Bluepeak DSL. Compared to other ISPs, Bluepeak is the slowest where upload speeds are concerned, and the fastest compared to other 57021 DSL providers. Bluepeak offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57021 is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Fort Randall Telephone Company Fiber in 57021, SD
Fort Randall Telephone Company fiber coverage
About 1.75%, or 4 people, have Fort Randall Telephone Company fiber internet available to them in the zip. The company covers the south 57021 area. Fort Randall Telephone Company is a small internet service provider internet service providers in the US, with internet service available in a very small piece of 57021.
Fort Randall Telephone Company fiber download speeds
Fort Randall Telephone Company is above average when comparing download speeds to all other internet providers in 57021. Versus other fiber providers in the area, Fort Randall Telephone Company fiber is one of the slowest. There are no different maximum speeds throughout 57021. The fastest plan anyone in 57021 can order from Fort Randall Telephone Company goes up to 1,000 Mbps, and all 57021 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Fort Randall Telephone Company fiber upload speeds
In 57021 download speeds tend to be equal to than upload speeds for Fort Randall Telephone Company fiber. Compared to other ISPs, Fort Randall Telephone Company is above average where upload speeds are concerned, and one of the slowest compared to other 57021 fiber providers. Fort Randall Telephone Company offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57021 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Bluepeak Fixed Wireless in 57021, SD
Bluepeak fixed wireless coverage
About 100.00%, or 229 people, have Bluepeak fixed wireless internet available to them in the zip. The company covers the entire 57021 area. Bluepeak is a large internet service provider internet service providers in the US, with internet service available in every corner of 57021.
Bluepeak fixed wireless download speeds
Bluepeak is below average when comparing download speeds to all other internet providers in 57021. Versus other fixed wireless providers in the area, Bluepeak fixed wireless is one of the slowest. There are no different maximum speeds throughout 57021. The fastest plan anyone in 57021 can order from Bluepeak goes up to 25 Mbps, and all 57021 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
Bluepeak fixed wireless upload speeds
In 57021 download speeds tend to be faster than than upload speeds for Bluepeak fixed wireless. Compared to other ISPs, Bluepeak is below average where upload speeds are concerned, and one of the slowest compared to other 57021 fixed wireless providers. Bluepeak offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57021 is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
T-Mobile Home Internet Fixed Wireless in 57021, SD
T-Mobile Home Internet fixed wireless coverage
About 49.34%, or 113 people, have T-Mobile Home Internet fixed wireless internet available to them in the zip. The company covers the northeast, east, southwest, northwest, central, south, and north 57021 area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in some of 57021.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in 57021. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is average. There are 2 different maximum speeds throughout 57021. The fastest plan anyone in 57021 can order from T-Mobile Home Internet goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the zip-wide average maximum speed for 57021 customers is up to 30 Mbps.
Show all download speeds
- 6.2% up to 100.0 Mbps
- 93.8% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In 57021 download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and average compared to other 57021 fixed wireless providers. T-Mobile Home Internet offers 2 different upload speeds across the zip, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in 57021 is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, T-Mobile Home Internet customers can get speeds up to 4.1 Mbps.
Show all upload speeds
- 6.2% up to 20.0 Mbps
- 93.8% up to 3.0 Mbps
Rise Broadband Fixed Wireless in 57021, SD
Rise Broadband fixed wireless coverage
About 19.21%, or 44 people, have Rise Broadband fixed wireless internet available to them in the zip. The company covers the northeast 57021 area. Rise Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of 57021.
Rise Broadband fixed wireless download speeds
Rise Broadband is below average when comparing download speeds to all other internet providers in 57021. Versus other fixed wireless providers in the area, Rise Broadband fixed wireless is the fastest. There are no different maximum speeds throughout 57021. The fastest plan anyone in 57021 can order from Rise Broadband goes up to 50 Mbps, and all 57021 customers can get this speed.
Show all download speeds
- 100.0% up to 50.0 Mbps
Rise Broadband fixed wireless upload speeds
In 57021 download speeds tend to be faster than than upload speeds for Rise Broadband fixed wireless. Compared to other ISPs, Rise Broadband is below average where upload speeds are concerned, and the fastest compared to other 57021 fixed wireless providers. Rise Broadband offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57021 is up to 10 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10.0 Mbps
EarthLink Fixed Wireless in 57021, SD
EarthLink fixed wireless coverage
About 13.10%, or 30 people, have EarthLink fixed wireless internet available to them in the zip. The company covers the northeast, south, northwest, and southeast 57021 area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 57021.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in 57021. Versus other fixed wireless providers in the area, EarthLink fixed wireless is one of the slowest. There are no different maximum speeds throughout 57021. The fastest plan anyone in 57021 can order from EarthLink goes up to 25 Mbps, and all 57021 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In 57021 download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the slowest compared to other 57021 fixed wireless providers. EarthLink offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57021 is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
AT&T Fixed Wireless in 57021, SD
AT&T fixed wireless coverage
About 13.10%, or 30 people, have AT&T fixed wireless internet available to them in the zip. The company covers the northeast, south, northwest, and southeast 57021 area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 57021.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in 57021. Versus other fixed wireless providers in the area, AT&T fixed wireless is one of the slowest. There are no different maximum speeds throughout 57021. The fastest plan anyone in 57021 can order from AT&T goes up to 25 Mbps, and all 57021 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In 57021 download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and one of the slowest compared to other 57021 fixed wireless providers. AT&T offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57021 is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
57021 Internet by Area
This information is most helpful to those looking for homes or considering moving to 57021 or any of the areas nearby.
How does internet in 57021 compare to the rest of South Dakota?
Internet speeds in 57021 are much faster versus the average speeds in South Dakota: 1,953 Mbps in South Dakota versus 3,847 Mbps in the zip. The state has similar internet availability compared to the zip. Average internet coverage in South Dakota is 98.12% versus 100.00% in 57021.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around 57021 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
- 57036, SD: less internet coverage, slower speeds
- 57039, SD: less internet coverage, slower speeds
- 57070, SD: less internet coverage, slower speeds
- 57014, SD: equal internet coverage, slower speeds
- 57077, SD: equal internet coverage, slower speeds
- 57013, SD: less internet coverage, slower speeds
- 57029, SD: less internet coverage, slower speeds
- 57027, SD: equal internet coverage, slower speeds
- 57034, SD: less internet coverage, slower speeds
- 51240, IA: equal internet coverage, slower speeds
Zip Codes with Similar Populations
- 99666, AK: less internet coverage, slower speeds
- 03746, NH: equal internet coverage, slower speeds
- 67041, KS: equal internet coverage, slower speeds
- 62459, IL: equal internet coverage, slower speeds
- 66958, KS: equal internet coverage, slower speeds
- 66944, KS: equal internet coverage, slower speeds
- 66941, KS: less internet coverage, slower speeds
- 66746, KS: equal internet coverage, slower speeds
- 66527, KS: equal internet coverage, slower speeds
- 66501, KS: equal internet coverage, slower speeds