In Madison County there are 2 residential DSL providers covering 97.32% of the county. The average home can get speeds up to 28 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 Madison County, ID.
To see availability maps for all providers including fiber, cable, DSL, and more in Madison County, ID please click below.
Madison County, ID Availability Maps
DSL Internet Service Providers in Madison 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 Madison County are not shown.
Madison 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 Madison County is DSL internet available?
DSL Internet Availability Key
DSL is available in 97.32% of Madison County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Centurylink. Call one of the companies with service in Madison County above to see who has service at your home.
How fast is DSL internet in Madison County?
The map below shows maximum DSL internet speeds by area in Madison County.
DSL Internet Speed Key
The average Madison County home can get up to 28 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 100 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, 52.72% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Madison County.
DSL internet speeds tend to be faster in the north parts of Madison County, and slower in the east areas of the county.
Is DSL the fastest internet I can get in Madison County?
The fastest internet for you may vary based on where in Madison County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 89.49% of Madison County homes.
- Cable is fastest for 6.47% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 3.19%.
- Satellite internet may be the only option for less than 1% of Madison County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Madison County, along with details on where in Madison County and at what speeds.
Centurylink DSL in Madison County, ID
Centurylink DSL coverage
About 96.65%, or 51,142 people, have Centurylink DSL internet available to them in the county. The company covers the entire Madison County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Madison County.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Madison County. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 5 different maximum speeds throughout Madison County. The fastest plan anyone in Madison 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 Madison County customers is up to 28 Mbps.
Show all download speeds
- 0.4% up to 100.0 Mbps
- 1.2% up to 80.0 Mbps
- 19.9% up to 60.0 Mbps
- 24.3% up to 40.0 Mbps
- 54.3% up to 10.0 Mbps
Centurylink DSL upload speeds
In Madison 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 Madison County DSL providers. Centurylink offers 5 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 Madison County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 2.5 Mbps.
Show all upload speeds
- 0.2% up to 20.0 Mbps
- 1.6% up to 10.0 Mbps
- 19.8% up to 5.0 Mbps
- 24.1% up to 3.0 Mbps
- 54.3% up to 1.0 Mbps
Blackfoot Communications DSL in Madison County, ID
Blackfoot DSL coverage
About 15.71%, or 8,312 people, have Blackfoot DSL internet available to them in the county. The company covers the central, west, northeast, northwest, east, and southeast Madison County area. Blackfoot is a large internet service provider internet service providers in the US, with internet service available in a small portion of Madison County.
Blackfoot Communications DSL download speeds
Blackfoot is the slowest when comparing download speeds to all other internet providers in Madison County. Versus other DSL providers in the area, Blackfoot DSL is the slowest. There are 3 different maximum speeds throughout Madison County. The fastest plan anyone in Madison County can order from Blackfoot goes up to 40 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Madison County customers is up to 11 Mbps.
Show all download speeds
- 2.3% up to 40.0 Mbps
- 0.2% up to 25.0 Mbps
- 97.5% up to 10.0 Mbps
Blackfoot Communications DSL upload speeds
In Madison County download speeds tend to be faster than than upload speeds for Blackfoot DSL. Compared to other ISPs, Blackfoot is the slowest where upload speeds are concerned, and the slowest compared to other Madison County DSL providers. Blackfoot 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 Madison County is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Blackfoot customers can get speeds up to 1.1 Mbps.
Show all upload speeds
- 2.5% up to 5.0 Mbps
- 97.5% up to 1.0 Mbps
Madison County DSL by Area
This information is most helpful to those looking for homes or considering moving to Madison County or any of the areas nearby.
How does DSL internet in Madison County compare to the rest of Idaho?
DSL internet speeds in Madison County are much faster versus the average speeds in Idaho: 0.00 Mbps in Idaho versus 28 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Idaho is 0.00% versus 97.32% in Madison County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Madison 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
- Boise County, ID: less DSL coverage, faster speeds
- Gem County, ID: less DSL coverage, faster speeds
- Malheur County, OR: less DSL coverage, slower speeds
- Weston County, WY: less DSL coverage, faster speeds
- Custer County, SD: less DSL coverage, slower speeds
- Lyman County, SD: less DSL coverage, faster speeds
- Brule County, SD: less DSL coverage, slower speeds
- Davison County, SD: less DSL coverage, slower speeds
- Pipestone County, MN: less DSL coverage, faster speeds
- Murray County, MN: less DSL coverage, faster speeds
Counties with Similar Populations
- Chilton County, AL: less DSL coverage, faster speeds
- Cabo Rojo Municipio, PR: less DSL coverage, faster speeds
- Calaveras County, CA: less DSL coverage, faster speeds
- Caldwell County, TX: less DSL coverage, slower speeds
- Callaway County, MO: less DSL coverage, faster speeds
- Calumet County, WI: less DSL coverage, faster speeds
- Camden County, GA: less DSL coverage, faster speeds
- Campbell County, VA: less DSL coverage, faster speeds
- Campbell County, WY: less DSL coverage, faster speeds
- Carter County, OK: less DSL coverage, slower speeds