In Union County there are 7 residential Fiber providers covering 90.74% of the county. The average home can get speeds up to 1,612 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 Union County, SD.
To see availability maps for all providers including fiber, cable, DSL, and more in Union County, SD please click below.
Union County, SD Availability Maps
Fiber Internet Service Providers in Union County
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 Union County are not shown.
Union County 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 Union County is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 90.74% of Union County. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Midco. Call one of the companies with service in Union County above to see who has service at your home.
How fast is fiber internet in Union County?
The map below shows maximum fiber internet speeds by area in Union County.
Fiber Internet Speed Key
The average Union County home can get up to 1,612 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 5,000 Mbps, which 13.08% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 71.23% 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 Union County.
Fiber internet speeds tend to be faster in the south parts of Union County, and slower in the northwest areas of the county.
Is fiber the fastest internet I can get in Union County?
The fastest internet for you may vary based on where in Union County you live. In general, cable competes most often with fiber in the county.
- Fiber is the fastest internet type for 49.69% of Union County homes.
- Cable is fastest for 49.27% of the county.
- 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 Union County homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Union County, along with details on where in Union County and at what speeds.
ImOn Communications Fiber in Union County, SD
ImOn Communications fiber coverage
About 39.97%, or 6,720 people, have ImOn Communications fiber internet available to them in the county. The company covers the southeast and south Union County area. ImOn Communications is a large internet service provider internet service providers in the US, with internet service available in some of Union County.
ImOn Communications fiber download speeds
ImOn Communications is above average when comparing download speeds to all other internet providers in Union County. Versus other fiber providers in the area, ImOn Communications fiber is one of the slowest. There are no different maximum speeds throughout Union County. The fastest plan anyone in Union County can order from ImOn Communications goes up to 1,000 Mbps, and all Union County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
ImOn Communications fiber upload speeds
In Union County download speeds tend to be equal to than upload speeds for ImOn Communications fiber. Compared to other ISPs, ImOn Communications is above average where upload speeds are concerned, and below average compared to other Union County fiber providers. ImOn Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Union County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Long Lines Fiber in Union County, SD
Long Lines fiber coverage
About 15.01%, or 2,524 people, have Long Lines fiber internet available to them in the county. The company covers the southeast, west, south, central, southwest, and east Union County area. Long Lines is a large internet service provider internet service providers in the US, with internet service available in a small portion of Union County.
Long Lines fiber download speeds
Long Lines is above average when comparing download speeds to all other internet providers in Union County. Versus other fiber providers in the area, Long Lines fiber is below average. There are 2 different maximum speeds throughout Union County. The fastest plan anyone in Union County can order from Long Lines goes up to 1,500 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Union County customers is up to 1,214 Mbps.
Show all download speeds
- 42.8% up to 1,500.0 Mbps
- 57.2% up to 1,000.0 Mbps
Long Lines fiber upload speeds
In Union County download speeds tend to be equal to than upload speeds for Long Lines fiber. Compared to other ISPs, Long Lines is above average where upload speeds are concerned, and below average compared to other Union County fiber providers. Long Lines offers 2 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Union County is up to 1,500 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, Long Lines customers can get speeds up to 1,214 Mbps.
Show all upload speeds
- 42.8% up to 1,500.0 Mbps
- 57.2% up to 1,000.0 Mbps
Midco Fiber in Union County, SD
Midco fiber coverage
About 13.08%, or 2,199 people, have Midco fiber internet available to them in the county. The company covers the south and central Union County area. Midco is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Union County.
Midco fiber download speeds
Midco is the fastest when comparing download speeds to all other internet providers in Union County. Versus other fiber providers in the area, Midco fiber is the fastest. There are no different maximum speeds throughout Union County. The fastest plan anyone in Union County can order from Midco goes up to 5,000 Mbps, and all Union County customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
Midco fiber upload speeds
In Union County download speeds tend to be equal to than upload speeds for Midco fiber. Compared to other ISPs, Midco is the fastest where upload speeds are concerned, and the fastest compared to other Union County fiber providers. Midco offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Union County is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
Alliance Communications Fiber in Union County, SD
Alliance Communications fiber coverage
About 10.89%, or 1,831 people, have Alliance Communications fiber internet available to them in the county. The company covers the north, northwest, northeast, west, and central Union County area. Alliance Communications is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Union County.
Alliance Communications fiber download speeds
Alliance Communications is above average when comparing download speeds to all other internet providers in Union County. Versus other fiber providers in the area, Alliance Communications fiber is one of the slowest. There are no different maximum speeds throughout Union County. The fastest plan anyone in Union County can order from Alliance Communications goes up to 1,000 Mbps, and all Union County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Alliance Communications fiber upload speeds
In Union County 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 below average compared to other Union County fiber providers. Alliance Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Union County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Beresford Municipal Telephone Company Fiber in Union County, SD
Beresford Municipal Telephone Company fiber coverage
About 10.88%, or 1,829 people, have Beresford Municipal Telephone Company fiber internet available to them in the county. The company covers the northwest Union County area. Beresford Municipal Telephone Company is one of the smallest internet service providers internet service providers in the US, with internet service available in a very small piece of Union County.
Beresford Municipal Telephone Company fiber download speeds
Beresford Municipal Telephone Company is above average when comparing download speeds to all other internet providers in Union County. Versus other fiber providers in the area, Beresford Municipal Telephone Company fiber is one of the slowest. There are no different maximum speeds throughout Union County. The fastest plan anyone in Union County can order from Beresford Municipal Telephone Company goes up to 1,000 Mbps, and all Union County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Beresford Municipal Telephone Company fiber upload speeds
In Union County download speeds tend to be equal to than upload speeds for Beresford Municipal Telephone Company fiber. Compared to other ISPs, Beresford Municipal Telephone Company is above average where upload speeds are concerned, and below average compared to other Union County fiber providers. Beresford Municipal Telephone Company offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Union County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Premier Communications Fiber in Union County, SD
Premier Communications fiber coverage
About 3.94%, or 662 people, have Premier Communications fiber internet available to them in the county. The company covers the northeast, central, east, west, and north Union County area. Premier Communications is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Union County.
Premier Communications fiber download speeds
Premier Communications is above average when comparing download speeds to all other internet providers in Union County. Versus other fiber providers in the area, Premier Communications fiber is one of the slowest. There are no different maximum speeds throughout Union County. The fastest plan anyone in Union County can order from Premier Communications goes up to 1,000 Mbps, and all Union County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Premier Communications fiber upload speeds
In Union County download speeds tend to be equal to than upload speeds for Premier Communications fiber. Compared to other ISPs, Premier Communications is above average where upload speeds are concerned, and below average compared to other Union County fiber providers. Premier Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Union County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Sparklight Fiber in Union County, SD
Sparklight fiber coverage
About 2.83%, or 476 people, have Sparklight fiber internet available to them in the county. The company covers the southeast Union County area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Union County.
Sparklight fiber download speeds
Sparklight is above average when comparing download speeds to all other internet providers in Union County. Versus other fiber providers in the area, Sparklight fiber is one of the slowest. There are no different maximum speeds throughout Union County. The fastest plan anyone in Union County can order from Sparklight goes up to 1,000 Mbps, and all Union County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Sparklight fiber upload speeds
In Union County download speeds tend to be faster than than upload speeds for Sparklight fiber. Compared to other ISPs, Sparklight is below average where upload speeds are concerned, and the slowest compared to other Union County fiber providers. Sparklight offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Union County is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Union County Fiber by Area
This information is most helpful to those looking for homes or considering moving to Union County or any of the areas nearby.
How does fiber internet in Union County compare to the rest of South Dakota?
Fiber internet speeds in Union County are much faster versus the average speeds in South Dakota: 0.00 Mbps in South Dakota versus 1,612 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in South Dakota is 0.00% versus 90.74% in Union County.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Union County 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 counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Plymouth County, IA: more fiber coverage, slower speeds
- Cedar County, NE: less fiber coverage, slower speeds
- Cherokee County, IA: less fiber coverage, slower speeds
- Knox County, NE: less fiber coverage, faster speeds
- Buena Vista County, IA: less fiber coverage, slower speeds
- Pocahontas County, IA: less fiber coverage, slower speeds
- Humboldt County, IA: less fiber coverage, slower speeds
- Wright County, IA: less fiber coverage, slower speeds
- Rock County, NE: less fiber coverage, slower speeds
- Brown County, NE: more fiber coverage, slower speeds
Counties with Similar Populations
- Jefferson County, MT: less fiber coverage, faster speeds
- Jackson County, WI: less fiber coverage, slower speeds
- Jackson Parish, LA: less fiber coverage, slower speeds
- Jasper County, GA: less fiber coverage, faster speeds
- Jasper County, IL: less fiber coverage, faster speeds
- Jasper County, MS: less fiber coverage, slower speeds
- Jay County, IN: less fiber coverage, faster speeds
- Jayuya Municipio, PR: more fiber coverage, slower speeds
- Jeff Davis County, GA: less fiber coverage, faster speeds
- Jefferson County, FL: less fiber coverage, faster speeds