In Sioux County there are 3 residential DSL providers covering 24.97% of the county. The average home can get speeds up to 12 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 DSL internet providers in Sioux County, IA.
To see availability maps for all providers including fiber, cable, DSL, and more in Sioux County, IA please click below.
Sioux County, IA Availability Maps
DSL Internet Service Providers in Sioux 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 Sioux County are not shown.
Sioux 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 Sioux County is DSL internet available?
DSL Internet Availability Key
DSL is available in 24.97% of Sioux County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Frontier. Call one of the companies with service in Sioux County above to see who has service at your home.
How fast is DSL internet in Sioux County?
The map below shows maximum DSL internet speeds by area in Sioux County.
DSL Internet Speed Key
The average Sioux County home can get up to 12 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 115 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 24.30% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Sioux County.
DSL internet speeds tend to be faster in the northeast parts of Sioux County, and slower in the southeast areas of the county.
Is DSL the fastest internet I can get in Sioux County?
The fastest internet for you may vary based on where in Sioux County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 75.37% of Sioux County homes.
- Cable is fastest for 20.14% 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 4.44% of Sioux County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Sioux County, along with details on where in Sioux County and at what speeds.
Frontier Communications DSL in Sioux County, IA
Frontier DSL coverage
About 16.44%, or 5,897 people, have Frontier DSL internet available to them in the county. The company covers the east, southeast, central, and south Sioux County area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Sioux County.
Frontier Communications DSL download speeds
Frontier is below average when comparing download speeds to all other internet providers in Sioux County. Versus other DSL providers in the area, Frontier DSL is average. There are 4 different maximum speeds throughout Sioux County. The fastest plan anyone in Sioux County can order from Frontier goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sioux County customers is up to 11 Mbps.
Show all download speeds
- 1.0% up to 115.0 Mbps
- 0.4% up to 90.0 Mbps
- 0.2% up to 45.0 Mbps
- 98.4% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Sioux County download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is below average where upload speeds are concerned, and average compared to other Sioux County DSL providers. Frontier offers 4 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 Sioux County is up to 7.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 1.1 Mbps.
Show all upload speeds
- 1.0% up to 7.0 Mbps
- 0.4% up to 5.0 Mbps
- 0.2% up to 3.0 Mbps
- 98.4% up to 1.0 Mbps
Premier Communications DSL in Sioux County, IA
Premier Communications DSL coverage
About 7.04%, or 2,527 people, have Premier Communications DSL internet available to them in the county. The company covers the southwest and west Sioux 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 Sioux County.
Premier Communications DSL download speeds
Premier Communications is the slowest when comparing download speeds to all other internet providers in Sioux County. Versus other DSL providers in the area, Premier Communications DSL is the slowest. There are no different maximum speeds throughout Sioux County. The fastest plan anyone in Sioux County can order from Premier Communications goes up to 10 Mbps, and all Sioux County customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Premier Communications DSL upload speeds
In Sioux County download speeds tend to be faster than than upload speeds for Premier Communications DSL. Compared to other ISPs, Premier Communications is the slowest where upload speeds are concerned, and the slowest compared to other Sioux County DSL providers. Premier Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sioux County is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Centurylink DSL in Sioux County, IA
Centurylink DSL coverage
About 1.49%, or 533 people, have Centurylink DSL internet available to them in the county. The company covers the northeast and northwest Sioux County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Sioux County.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Sioux County. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 5 different maximum speeds throughout Sioux County. The fastest plan anyone in Sioux County can order from Centurylink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sioux County customers is up to 26 Mbps.
Show all download speeds
- 4.5% up to 100.0 Mbps
- 10.9% up to 80.0 Mbps
- 4.3% up to 60.0 Mbps
- 7.9% up to 40.0 Mbps
- 72.4% up to 10.0 Mbps
Centurylink DSL upload speeds
In Sioux County download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is below average where upload speeds are concerned, and the fastest compared to other Sioux County DSL providers. Centurylink offers 4 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 Sioux County is up to 10 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 2.7 Mbps.
Show all upload speeds
- 15.4% up to 10.0 Mbps
- 4.3% up to 5.0 Mbps
- 7.9% up to 3.0 Mbps
- 72.4% up to 1.0 Mbps
Sioux County DSL by Area
This information is most helpful to those looking for homes or considering moving to Sioux County or any of the areas nearby.
How does DSL internet in Sioux County compare to the rest of Iowa?
DSL internet speeds in Sioux County are much faster versus the average speeds in Iowa: 0.00 Mbps in Iowa versus 12 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Iowa is 0.00% versus 24.97% in Sioux County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Sioux County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does DSL 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
- O'Brien County, IA: more DSL coverage, faster speeds
- Clay County, IA: more DSL coverage, faster speeds
- Yankton County, SD: more DSL coverage, faster speeds
- Palo Alto County, IA: more DSL coverage, faster speeds
- Bon Homme County, SD: less DSL coverage, faster speeds
- Kossuth County, IA: more DSL coverage, faster speeds
- Charles Mix County, SD: more DSL coverage, faster speeds
- Hancock County, IA: more DSL coverage, slower speeds
- Cerro Gordo County, IA: more DSL coverage, faster speeds
- Gregory County, SD: less DSL coverage, slower speeds
Counties with Similar Populations
- Gilmer County, GA: more DSL coverage, faster speeds
- Washington Parish, LA: more DSL coverage, faster speeds
- Wayne County, GA: more DSL coverage, faster speeds
- Weakley County, TN: more DSL coverage, faster speeds
- Webster County, IA: more DSL coverage, faster speeds
- Webster County, MO: more DSL coverage, faster speeds
- Webster Parish, LA: more DSL coverage, faster speeds
- Wells County, IN: more DSL coverage, faster speeds
- Washington County, TX: more DSL coverage, faster speeds
- Geary County, KS: more DSL coverage, faster speeds