In 57366 there are 9 residential internet providers covering 97.11% 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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9 Internet Service Providers in 57366
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 57366 are not shown.
57366 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 57366
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 97.11% of 57366. 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 Santel Communications. Now you can call companies in 57366 with more confidence that they might be available.
How fast are internet speeds in 57366?
The map below shows maximum internet speeds by area in 57366.
Internet Speed Key
The average 57366 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 97.11% of residents can get.
What type of internet should I choose in 57366?
The fastest internet for you may vary based on where in 57366 you live. If speed is your main concern, fiber will be the fastest internet in the zip.
- Fiber is the fastest internet type for 97.11% of 57366 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 2.89% of 57366 homes.
Internet Market Health in 57366
Internet Competition Key
The map shows how competitive the 57366 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 57366 based on what connections the average home has availabile:
- Average number of internet service providers to a home: 3.1 (very unhealthy)
- Average types of service (fiber, cable, DSL, etc): 2.5 (unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 3.1 (unhealthy)
Overall, competition is unhealthy.
57366 internet customers have the ability to buy internet service from 1 to 5 different providers, depending on where they live. For different types of service, 57366 homes have between 1 and 3 options. The type(s) of service available are fiber, fixed wireless, and cable, 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. 57366 internet customers who want faster speeds have between 1 and 5 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, 57366 needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in 57366, along with details on where in 57366 and at what speeds.
Santel Communications Fiber in 57366, SD
Santel Communications fiber coverage
About 92.34%, or 2,206 people, have Santel Communications fiber internet available to them in the zip. The company covers the entire 57366 area. Santel Communications is a small internet service provider internet service providers in the US, with internet service available in most of 57366.
Santel Communications fiber download speeds
Santel Communications is one of the fastest when comparing download speeds to all other internet providers in 57366. Versus other fiber providers in the area, Santel Communications fiber is one of the fastest. There are no different maximum speeds throughout 57366. The fastest plan anyone in 57366 can order from Santel Communications goes up to 1,000 Mbps, and all 57366 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Santel Communications fiber upload speeds
In 57366 download speeds tend to be equal to than upload speeds for Santel Communications fiber. Compared to other ISPs, Santel Communications is one of the fastest where upload speeds are concerned, and one of the fastest compared to other 57366 fiber providers. Santel Communications offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57366 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Fort Randall Telephone Company Cable in 57366, SD
Fort Randall Telephone Company cable coverage
About 65.13%, or 1,556 people, have Fort Randall Telephone Company cable internet available to them in the zip. The company covers the central, west, northwest, south, north, east, and southwest 57366 area. Fort Randall Telephone Company is a small internet service provider internet service providers in the US, with internet service available in much of 57366.
Fort Randall Telephone Company cable download speeds
Fort Randall Telephone Company is one of the slowest when comparing download speeds to all other internet providers in 57366. Versus other cable providers in the area, Fort Randall Telephone Company cable is the fastest. There are no different maximum speeds throughout 57366. The fastest plan anyone in 57366 can order from Fort Randall Telephone Company goes up to 25 Mbps, and all 57366 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
Fort Randall Telephone Company cable upload speeds
In 57366 download speeds tend to be faster than than upload speeds for Fort Randall Telephone Company cable. Compared to other ISPs, Fort Randall Telephone Company is one of the slowest where upload speeds are concerned, and the fastest compared to other 57366 cable providers. Fort Randall Telephone Company offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57366 is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
TrioTel Communications Fiber in 57366, SD
TrioTel Communications fiber coverage
About 4.77%, or 114 people, have TrioTel Communications fiber internet available to them in the zip. The company covers the northeast 57366 area. TrioTel Communications is a small internet service provider internet service providers in the US, with internet service available in a very small piece of 57366.
TrioTel Communications fiber download speeds
TrioTel Communications is one of the fastest when comparing download speeds to all other internet providers in 57366. Versus other fiber providers in the area, TrioTel Communications fiber is one of the fastest. There are no different maximum speeds throughout 57366. The fastest plan anyone in 57366 can order from TrioTel Communications goes up to 1,000 Mbps, and all 57366 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
TrioTel Communications fiber upload speeds
In 57366 download speeds tend to be equal to than upload speeds for TrioTel Communications fiber. Compared to other ISPs, TrioTel Communications is one of the fastest where upload speeds are concerned, and one of the fastest compared to other 57366 fiber providers. TrioTel Communications offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57366 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
T-Mobile Home Internet Fixed Wireless in 57366, SD
T-Mobile Home Internet fixed wireless coverage
About 80.95%, or 1,934 people, have T-Mobile Home Internet fixed wireless internet available to them in the zip. The company covers the entire 57366 area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in much of 57366.
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 57366. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are 2 different maximum speeds throughout 57366. The fastest plan anyone in 57366 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 57366 customers is up to 81 Mbps.
Show all download speeds
- 74.1% up to 100.0 Mbps
- 25.9% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In 57366 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 above average compared to other 57366 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 57366 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 16 Mbps.
Show all upload speeds
- 74.1% up to 20.0 Mbps
- 25.9% up to 3.0 Mbps
Verizon Fixed Wireless in 57366, SD
Verizon fixed wireless coverage
About 58.77%, or 1,404 people, have Verizon fixed wireless internet available to them in the zip. The company covers the entire 57366 area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of 57366.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in 57366. Versus other fixed wireless providers in the area, Verizon fixed wireless is the fastest. There are no different maximum speeds throughout 57366. The fastest plan anyone in 57366 can order from Verizon goes up to 300 Mbps, and all 57366 customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In 57366 download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and the fastest compared to other 57366 fixed wireless providers. Verizon offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57366 is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
EarthLink Fixed Wireless in 57366, SD
EarthLink fixed wireless coverage
About 1.13%, or 27 people, have EarthLink fixed wireless internet available to them in the zip. The company covers the northeast, central, southwest, and northwest 57366 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 57366.
EarthLink fixed wireless download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in 57366. Versus other fixed wireless providers in the area, EarthLink fixed wireless is one of the slowest. There are no different maximum speeds throughout 57366. The fastest plan anyone in 57366 can order from EarthLink goes up to 25 Mbps, and all 57366 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In 57366 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 57366 fixed wireless providers. EarthLink offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57366 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 57366, SD
AT&T fixed wireless coverage
About 1.13%, or 27 people, have AT&T fixed wireless internet available to them in the zip. The company covers the northeast, central, southwest, and northwest 57366 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 57366.
AT&T fixed wireless download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in 57366. Versus other fixed wireless providers in the area, AT&T fixed wireless is one of the slowest. There are no different maximum speeds throughout 57366. The fastest plan anyone in 57366 can order from AT&T goes up to 25 Mbps, and all 57366 customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In 57366 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 57366 fixed wireless providers. AT&T offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57366 is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
57366 Internet by Area
This information is most helpful to those looking for homes or considering moving to 57366 or any of the areas nearby.
How does internet in 57366 compare to the rest of South Dakota?
Internet speeds in 57366 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 97.11% in 57366.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around 57366 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
- 57331, SD: more internet coverage, similar speeds
- 57334, SD: more internet coverage, similar speeds
- 57052, SD: more internet coverage, similar speeds
- 57313, SD: more internet coverage, similar speeds
- 57332, SD: less internet coverage, similar speeds
- 57328, SD: more internet coverage, similar speeds
- 57029, SD: more internet coverage, faster speeds
- 57319, SD: more internet coverage, similar speeds
- 57375, SD: more internet coverage, similar speeds
- 57344, SD: more internet coverage, similar speeds
Zip Codes with Similar Populations
- 98592, WA: more internet coverage, faster speeds
- 54410, WI: more internet coverage, slower speeds
- 75661, TX: less internet coverage, slower speeds
- 75931, TX: more internet coverage, slower speeds
- 36080, AL: more internet coverage, similar speeds
- 32949, FL: more internet coverage, faster speeds
- 29742, SC: more internet coverage, faster speeds
- 76837, TX: less internet coverage, faster speeds
- 76936, TX: less internet coverage, faster speeds
- 85630, AZ: more internet coverage, faster speeds