In 57257 there are 3 residential Fiber providers covering 95.52% of the zip. The average home can get speeds up to 1,470 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 Fiber internet providers in 57257, SD.
To see availability maps for all providers including fiber, cable, DSL, and more in 57257, SD please click below.
Fiber Internet Service Providers in 57257
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 57257 are not shown.
57257 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 57257 is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 95.52% of 57257. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is RC Technologies. Call one of the companies with service in 57257 above to see who has service at your home.
How fast is fiber internet in 57257?
The map below shows maximum fiber internet speeds by area in 57257.
Fiber Internet Speed Key
The average 57257 home can get up to 1,470 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 1,500 Mbps, which 92.28% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.37% of homes can only purchase plans up to 100 Mbps. See the internet provider details below for info about their speed and coverage in 57257.
Fiber internet speeds tend to be faster in the east parts of 57257, and slower in the northeast areas of the zip.
Is fiber the fastest internet I can get in 57257?
The fastest internet for you may vary based on where in 57257 you live. In general, satellite competes most often with fiber in the zip.
- Fiber is the fastest internet type for 95.52% of 57257 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 4.48% of 57257 homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in 57257, along with details on where in 57257 and at what speeds.
RC Technologies Fiber in 57257, SD
RC Technologies fiber coverage
About 92.28%, or 741 people, have RC Technologies fiber internet available to them in the zip. The company covers the entire 57257 area. RC Technologies is a small internet service provider internet service providers in the US, with internet service available in most of 57257.
RC Technologies fiber download speeds
RC Technologies is the fastest when comparing download speeds to all other internet providers in 57257. Versus other fiber providers in the area, RC Technologies fiber is the fastest. There are no different maximum speeds throughout 57257. The fastest plan anyone in 57257 can order from RC Technologies goes up to 1,500 Mbps, and all 57257 customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
RC Technologies fiber upload speeds
In 57257 download speeds tend to be equal to than upload speeds for RC Technologies fiber. Compared to other ISPs, RC Technologies is the fastest where upload speeds are concerned, and the fastest compared to other 57257 fiber providers. RC Technologies offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57257 is up to 1,500 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,500.0 Mbps
Interstate Telecommunications Cooperative Fiber in 57257, SD
ITC fiber coverage
About 13.20%, or 106 people, have ITC fiber internet available to them in the zip. The company covers the southwest 57257 area. ITC is a large internet service provider internet service providers in the US, with internet service available in a very small piece of 57257.
Interstate Telecommunications Cooperative fiber download speeds
ITC is above average when comparing download speeds to all other internet providers in 57257. Versus other fiber providers in the area, ITC fiber is above average. There are no different maximum speeds throughout 57257. The fastest plan anyone in 57257 can order from ITC goes up to 1,000 Mbps, and all 57257 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Interstate Telecommunications Cooperative fiber upload speeds
In 57257 download speeds tend to be equal to than upload speeds for ITC fiber. Compared to other ISPs, ITC is above average where upload speeds are concerned, and above average compared to other 57257 fiber providers. ITC offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57257 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Park Region Telephone Company Fiber in 57257, SD
Park Region Telephone Company fiber coverage
About 1.74%, or 14 people, have Park Region Telephone Company fiber internet available to them in the zip. The company covers the northeast 57257 area. Park Region Telephone Company is a large internet service provider internet service providers in the US, with internet service available in a very small piece of 57257.
Park Region Telephone Company fiber download speeds
Park Region Telephone Company is below average when comparing download speeds to all other internet providers in 57257. Versus other fiber providers in the area, Park Region Telephone Company fiber is the slowest. There are no different maximum speeds throughout 57257. The fastest plan anyone in 57257 can order from Park Region Telephone Company goes up to 100 Mbps, and all 57257 customers can get this speed.
Show all download speeds
- 100.0% up to 100.0 Mbps
Park Region Telephone Company fiber upload speeds
In 57257 download speeds tend to be faster than than upload speeds for Park Region Telephone Company fiber. Compared to other ISPs, Park Region Telephone Company is below average where upload speeds are concerned, and the slowest compared to other 57257 fiber providers. Park Region Telephone Company offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 57257 is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
57257 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 57257 or any of the areas nearby.
How does fiber internet in 57257 compare to the rest of South Dakota?
Fiber internet speeds in 57257 are much faster versus the average speeds in South Dakota: 0.00 Mbps in South Dakota versus 1,470 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in South Dakota is 0.00% versus 95.52% in 57257.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 57257 are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber internet 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
- 57262, SD: more fiber coverage, slower speeds
- 57279, SD: more fiber coverage, faster speeds
- 56219, MN: more fiber coverage, slower speeds
- 56211, MN: less fiber coverage, slower speeds
- 57239, SD: more fiber coverage, slower speeds
- 57232, SD: more fiber coverage, slower speeds
- 56210, MN: more fiber coverage, slower speeds
- 57261, SD: more fiber coverage, slower speeds
- 56225, MN: less fiber coverage, slower speeds
- 56240, MN: less fiber coverage, slower speeds
Zip Codes with Similar Populations
- 81058, CO: less fiber coverage, slower speeds
- 80820, CO: less fiber coverage, slower speeds
- 57220, SD: more fiber coverage, slower speeds
- 56683, MN: more fiber coverage, slower speeds
- 52135, IA: more fiber coverage, slower speeds
- 51533, IA: more fiber coverage, faster speeds
- 51531, IA: more fiber coverage, slower speeds
- 51232, IA: more fiber coverage, slower speeds
- 50575, IA: less fiber coverage, faster speeds
- 50062, IA: less fiber coverage, faster speeds