In 57770 there are 6 residential internet providers covering 99.43% of the zip. The average home can get speeds up to 1,000 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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6 Internet Service Providers in 57770
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 57770 are not shown.
57770 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 57770
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 99.43% of 57770. 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 Golden West Telecommunications. Now you can call companies in 57770 with more confidence that they might be available.
How fast are internet speeds in 57770?
The map below shows maximum internet speeds by area in 57770.
Internet Speed Key
The average 57770 home can get up to 1,000 Mbps on their internet plan. For most people, the fastest download speed in the zip is 1,000 Mbps, which 99.43% of residents can get.
What type of internet should I choose in 57770?
The fastest internet for you may vary based on where in 57770 you live. If speed is your main concern, fiber will be the fastest internet in the zip.
- Fiber is the fastest internet type for 99.43% of 57770 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 less than 1% of 57770 homes.
Internet Market Health in 57770
Internet Competition Key
The map shows how competitive the 57770 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 57770 based on what connections the average home has availabile:
- Average number of internet service providers to a home: 1.5 (very unhealthy)
- Average types of service (fiber, cable, DSL, etc): 1.4 (very unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 1.5 (very unhealthy)
Overall, competition is very unhealthy.
57770 internet customers have the ability to buy internet service from 1 to 4 different providers, depending on where they live. For different types of service, 57770 homes have between 1 and 3 options. The type(s) of service available are fiber, fixed wireless, 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 similar. 57770 internet customers who want faster speeds have between 1 and 4 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, 57770 badly needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in 57770, along with details on where in 57770 and at what speeds.
Golden West Telecommunications Fiber in 57770, SD
Golden West Telecommunications fiber coverage
About 99.43%, or 5,604 people, have Golden West Telecommunications fiber internet available to them in the zip. The company covers the entire 57770 area. Golden West Telecommunications is a large internet service provider internet service providers in the US, with internet service available in most of 57770.
Golden West Telecommunications fiber download speeds
Golden West Telecommunications is one of the fastest when comparing download speeds to all other internet providers in 57770. Versus other fiber providers in the area, Golden West Telecommunications fiber is one of the fastest. There are no different maximum speeds throughout 57770. The fastest plan anyone in 57770 can order from Golden West Telecommunications goes up to 1,000 Mbps, and all 57770 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Golden West Telecommunications fiber upload speeds
In 57770 download speeds tend to be equal to than upload speeds for Golden West Telecommunications fiber. Compared to other ISPs, Golden West Telecommunications is one of the fastest where upload speeds are concerned, and one of the fastest compared to other 57770 fiber providers. Golden West Telecommunications offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57770 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Golden West Telecommunications DSL in 57770, SD
Golden West Telecommunications DSL coverage
About 4.28%, or 241 people, have Golden West Telecommunications DSL internet available to them in the zip. The company covers the southeast 57770 area. Golden West Telecommunications is a large internet service provider internet service providers in the US, with internet service available in a very small piece of 57770.
Golden West Telecommunications DSL download speeds
Golden West Telecommunications is one of the slowest when comparing download speeds to all other internet providers in 57770. Versus other DSL providers in the area, Golden West Telecommunications DSL is the fastest. There are no different maximum speeds throughout 57770. The fastest plan anyone in 57770 can order from Golden West Telecommunications goes up to 25 Mbps, and all 57770 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
Golden West Telecommunications DSL upload speeds
In 57770 download speeds tend to be faster than than upload speeds for Golden West Telecommunications DSL. Compared to other ISPs, Golden West Telecommunications is one of the slowest where upload speeds are concerned, and the fastest compared to other 57770 DSL providers. Golden West Telecommunications offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57770 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 57770, SD
T-Mobile Home Internet fixed wireless coverage
About 29.24%, or 1,648 people, have T-Mobile Home Internet fixed wireless internet available to them in the zip. The company covers the southeast, east, south, southwest, west, and central 57770 area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of 57770.
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 57770. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is the fastest. There are 2 different maximum speeds throughout 57770. The fastest plan anyone in 57770 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 57770 customers is up to 31 Mbps.
Show all download speeds
- 7.4% up to 100.0 Mbps
- 92.6% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In 57770 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 the fastest compared to other 57770 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 57770 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 4.3 Mbps.
Show all upload speeds
- 7.4% up to 20.0 Mbps
- 92.6% up to 3.0 Mbps
EarthLink Fixed Wireless in 57770, SD
EarthLink fixed wireless coverage
About 6.55%, or 369 people, have EarthLink fixed wireless internet available to them in the zip. The company covers the east 57770 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 57770.
EarthLink fixed wireless download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in 57770. Versus other fixed wireless providers in the area, EarthLink fixed wireless is one of the slowest. There are no different maximum speeds throughout 57770. The fastest plan anyone in 57770 can order from EarthLink goes up to 25 Mbps, and all 57770 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In 57770 download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is one of the slowest where upload speeds are concerned, and one of the slowest compared to other 57770 fixed wireless providers. EarthLink offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57770 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 57770, SD
AT&T fixed wireless coverage
About 6.55%, or 369 people, have AT&T fixed wireless internet available to them in the zip. The company covers the east 57770 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 57770.
AT&T fixed wireless download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in 57770. Versus other fixed wireless providers in the area, AT&T fixed wireless is one of the slowest. There are no different maximum speeds throughout 57770. The fastest plan anyone in 57770 can order from AT&T goes up to 25 Mbps, and all 57770 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In 57770 download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is one of the slowest where upload speeds are concerned, and one of the slowest compared to other 57770 fixed wireless providers. AT&T offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57770 is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
57770 Internet by Area
This information is most helpful to those looking for homes or considering moving to 57770 or any of the areas nearby.
How does internet in 57770 compare to the rest of South Dakota?
Internet speeds in 57770 are slower versus the average speeds in South Dakota: 1,953 Mbps in South Dakota versus 1,000 Mbps in the zip. The state has similar internet availability compared to the zip. Average internet coverage in South Dakota is 98.12% versus 99.43% in 57770.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around 57770 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
- 69365, NE: less internet coverage, similar speeds
- 57794, SD: more internet coverage, slower speeds
- 57764, SD: more internet coverage, similar speeds
- 57716, SD: less internet coverage, slower speeds
- 57763, SD: less internet coverage, similar speeds
- 57551, SD: less internet coverage, slower speeds
- 57574, SD: more internet coverage, similar speeds
- 69211, NE: less internet coverage, slower speeds
- 69216, NE: less internet coverage, slower speeds
- 57572, SD: less internet coverage, slower speeds
Zip Codes with Similar Populations
- 03307, NH: more internet coverage, faster speeds
- 75638, TX: less internet coverage, faster speeds
- 05661, VT: more internet coverage, faster speeds
- 04457, ME: less internet coverage, faster speeds
- 04260, ME: more internet coverage, slower speeds
- 03848, NH: more internet coverage, faster speeds
- 03222, NH: more internet coverage, faster speeds
- 03033, NH: more internet coverage, faster speeds
- 02835, RI: more internet coverage, faster speeds
- 02770, MA: more internet coverage, faster speeds