In Jefferson County there are 2 residential DSL providers covering 90.10% of the county. The average home can get speeds up to 43 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 Jefferson County, ID.
To see availability maps for all providers including fiber, cable, DSL, and more in Jefferson County, ID please click below.
Jefferson County, ID Availability Maps
DSL Internet Service Providers in Jefferson 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 Jefferson County are not shown.
Jefferson 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 Jefferson County is DSL internet available?
DSL Internet Availability Key
DSL is available in 90.10% of Jefferson 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 Jefferson County above to see who has service at your home.
How fast is DSL internet in Jefferson County?
The map below shows maximum DSL internet speeds by area in Jefferson County.
DSL Internet Speed Key
The average Jefferson County home can get up to 43 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 100 Mbps, which 20.70% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 46.81% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Jefferson County.
DSL internet speeds tend to be faster in the southeast parts of Jefferson County, and slower in the southwest areas of the county.
Is DSL the fastest internet I can get in Jefferson County?
The fastest internet for you may vary based on where in Jefferson County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 45.22% of Jefferson County homes.
- Cable is fastest for 29.46% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 24.69%.
- Satellite internet may be the only option for less than 1% of Jefferson County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Jefferson County, along with details on where in Jefferson County and at what speeds.
Centurylink DSL in Jefferson County, ID
Centurylink DSL coverage
About 88.55%, or 27,353 people, have Centurylink DSL internet available to them in the county. The company covers the entire Jefferson County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Jefferson County.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Jefferson County. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 5 different maximum speeds throughout Jefferson County. The fastest plan anyone in Jefferson 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 Jefferson County customers is up to 43 Mbps.
Show all download speeds
- 23.4% up to 100.0 Mbps
- 10.3% up to 80.0 Mbps
- 3.2% up to 60.0 Mbps
- 10.3% up to 40.0 Mbps
- 52.9% up to 10.0 Mbps
Centurylink DSL upload speeds
In Jefferson 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 Jefferson 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 Jefferson County is up to 40 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 4.4 Mbps.
Show all upload speeds
- 0.2% up to 40.0 Mbps
- 33.5% up to 10.0 Mbps
- 3.2% up to 5.0 Mbps
- 10.3% up to 3.0 Mbps
- 52.9% up to 1.0 Mbps
Mud Lake Telephone Cooperative DSL in Jefferson County, ID
Mud Lake DSL coverage
About 1.55%, or 480 people, have Mud Lake DSL internet available to them in the county. The company covers the northwest Jefferson County area. Mud Lake is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Jefferson County.
Mud Lake Telephone Cooperative DSL download speeds
Mud Lake is one of the slowest when comparing download speeds to all other internet providers in Jefferson County. Versus other DSL providers in the area, Mud Lake DSL is the slowest. There are no different maximum speeds throughout Jefferson County. The fastest plan anyone in Jefferson County can order from Mud Lake goes up to 25 Mbps, and all Jefferson County customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
Mud Lake Telephone Cooperative DSL upload speeds
In Jefferson County download speeds tend to be faster than than upload speeds for Mud Lake DSL. Compared to other ISPs, Mud Lake is one of the slowest where upload speeds are concerned, and the slowest compared to other Jefferson County DSL providers. Mud Lake offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Jefferson County is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
Jefferson County DSL by Area
This information is most helpful to those looking for homes or considering moving to Jefferson County or any of the areas nearby.
How does DSL internet in Jefferson County compare to the rest of Idaho?
DSL internet speeds in Jefferson County are much faster versus the average speeds in Idaho: 0.00 Mbps in Idaho versus 43 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Idaho is 0.00% versus 90.10% in Jefferson County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Jefferson 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
- Teton County, ID: more DSL coverage, faster speeds
- Butte County, ID: less DSL coverage, slower speeds
- Blaine County, ID: more DSL coverage, slower speeds
- Hot Springs County, WY: less DSL coverage, slower speeds
- Ada County, ID: more DSL coverage, faster speeds
- Canyon County, ID: less DSL coverage, faster speeds
- Harney County, OR: less DSL coverage, slower speeds
- Custer County, SD: less DSL coverage, slower speeds
- Jackson County, SD: less DSL coverage, slower speeds
- Mellette County, SD: less DSL coverage, slower speeds
Counties with Similar Populations
- Titus County, TX: less DSL coverage, slower speeds
- DeSoto County, FL: less DSL coverage, faster speeds
- Dillon County, SC: less DSL coverage, slower speeds
- Dodge County, NE: less DSL coverage, faster speeds
- Taos County, NM: less DSL coverage, slower speeds
- Tattnall County, GA: less DSL coverage, faster speeds
- Taylor County, FL: less DSL coverage, slower speeds
- Taylor County, KY: more DSL coverage, faster speeds
- Tazewell County, VA: less DSL coverage, slower speeds
- Teller County, CO: more DSL coverage, faster speeds