In Jefferson Island there is 1 residential DSL provider covering 70.59% of the city. 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 Jefferson Island, MT.
To see availability maps for all providers including fiber, cable, DSL, and more in Jefferson Island, MT please click below.
Jefferson Island, MT Availability Maps
DSL Internet Service Provider in Jefferson Island
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 Island are not shown.
Jefferson Island 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 Island is DSL internet available?
DSL Internet Availability Key
DSL is available in 70.59% of Jefferson Island. 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 Island above to see who has service at your home.
How fast is DSL internet in Jefferson Island?
The map below shows maximum DSL internet speeds by area in Jefferson Island.
DSL Internet Speed Key
The average Jefferson Island home can get up to 12 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 60 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, 66.14% 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 Island.
DSL internet speeds tend to be faster in the east parts of Jefferson Island, and slower in the northwest areas of the city.
Is DSL the fastest internet I can get in Jefferson Island?
The fastest internet for you may vary based on where in Jefferson Island you live. In general, fixed wireless competes most often with DSL in the city.
- Fiber is the fastest internet type for less than 1% of Jefferson Island homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for 3.50%.
- Fixed wireless is fastest for 95.07%.
- Satellite internet may be the only option for 1.43% of Jefferson Island homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Jefferson Island, along with details on where in Jefferson Island and at what speeds.
Centurylink DSL in Jefferson Island, MT
Centurylink DSL coverage
About 70.59%, or 444 people, have Centurylink DSL internet available to them in the city. The company covers the northwest, southwest, southeast, west, north, central, south, and east Jefferson Island area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Jefferson Island.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Jefferson Island. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 3 different maximum speeds throughout Jefferson Island. The fastest plan anyone in Jefferson Island can order from Centurylink goes up to 60 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Jefferson Island customers is up to 12 Mbps.
Show all download speeds
- 0.9% up to 60.0 Mbps
- 5.4% up to 40.0 Mbps
- 93.7% up to 10.0 Mbps
Centurylink DSL upload speeds
In Jefferson Island download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is average where upload speeds are concerned, and the fastest compared to other Jefferson Island DSL providers. Centurylink offers 3 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Jefferson Island is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 1.1 Mbps.
Show all upload speeds
- 0.9% up to 5.0 Mbps
- 5.4% up to 3.0 Mbps
- 93.7% up to 1.0 Mbps
Jefferson Island DSL by Area
This information is most helpful to those looking for homes or considering moving to Jefferson Island or any of the areas nearby.
How does DSL internet in Jefferson Island compare to the rest of Montana?
DSL internet speeds in Jefferson Island are much faster versus the average speeds in Montana: 0.00 Mbps in Montana versus 12 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Montana is 0.00% versus 70.59% in Jefferson Island.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Jefferson Island 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 cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Whitehall, MT: less DSL coverage, slower speeds
- Cardwell, MT: less DSL coverage, faster speeds
- Summit Valley, MT: less DSL coverage, slower speeds
- Pony, MT: less DSL coverage, slower speeds
- Harrison, MT: less DSL coverage, slower speeds
- Silver Star, MT: less DSL coverage, slower speeds
- Willow Creek, MT: less DSL coverage, slower speeds
- Floral Park, MT: more DSL coverage, faster speeds
- Butte-Silver Bow, MT: less DSL coverage, faster speeds
- Three Forks, MT: less DSL coverage, slower speeds
Cities with Similar Populations
- Cedar City, MO: more DSL coverage, faster speeds
- Bowmore, NC: more DSL coverage, faster speeds
- Bradley, AR: more DSL coverage, faster speeds
- Bremo Bluff, VA: more DSL coverage, faster speeds
- Timberlake, OH: more DSL coverage, faster speeds
- Bumpus Mills, TN: less DSL coverage, slower speeds
- Villa Cavazos, TX: less DSL coverage, slower speeds
- Vershire, VT: more DSL coverage, slower speeds
- Tuftonboro, NH: more DSL coverage, slower speeds
- Tupelo, OK: less DSL coverage, faster speeds