In Jefferson there are 3 residential DSL providers covering 9.63% of the city. The average home can get speeds up to 47 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, SC.
To see availability maps for all providers including fiber, cable, DSL, and more in Jefferson, SC please click below.
Jefferson, SC Availability Maps
DSL Internet Service Providers in Jefferson
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 are not shown.
Jefferson 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 is DSL internet available?
DSL Internet Availability Key
DSL is available in 9.63% of Jefferson. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Windstream. Call one of the companies with service in Jefferson above to see who has service at your home.
How fast is DSL internet in Jefferson?
The map below shows maximum DSL internet speeds by area in Jefferson.
DSL Internet Speed Key
The average Jefferson home can get up to 47 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 200 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, 3.62% 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.
DSL internet speeds tend to be faster in the southwest parts of Jefferson, and slower in the northwest areas of the city.
Is DSL the fastest internet I can get in Jefferson?
The fastest internet for you may vary based on where in Jefferson you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 99.08% of Jefferson homes.
- Cable is fastest for less than 1% of the city.
- 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 Jefferson homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Jefferson, along with details on where in Jefferson and at what speeds.
Sandhill Telephone Cooperative DSL in Jefferson, SC
Sandhill Telephone Cooperative DSL coverage
About 5.32%, or 225 people, have Sandhill Telephone Cooperative DSL internet available to them in the city. The company covers the southeast and northeast Jefferson area. Sandhill Telephone Cooperative is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Jefferson.
Sandhill Telephone Cooperative DSL download speeds
Sandhill Telephone Cooperative is below average when comparing download speeds to all other internet providers in Jefferson. Versus other DSL providers in the area, Sandhill Telephone Cooperative DSL is below average. There are 3 different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Sandhill Telephone Cooperative goes up to 40 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Jefferson customers is up to 32 Mbps.
Show all download speeds
- 69.3% up to 40.0 Mbps
- 9.8% up to 25.0 Mbps
- 20.9% up to 10.0 Mbps
Sandhill Telephone Cooperative DSL upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for Sandhill Telephone Cooperative DSL. Compared to other ISPs, Sandhill Telephone Cooperative is below average where upload speeds are concerned, and below average compared to other Jefferson DSL providers. Sandhill Telephone Cooperative 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 is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Sandhill Telephone Cooperative customers can get speeds up to 4.0 Mbps.
Show all upload speeds
- 69.3% up to 5.0 Mbps
- 9.8% up to 3.0 Mbps
- 20.9% up to 1.0 Mbps
Windstream DSL in Jefferson, SC
Windstream DSL coverage
About 3.00%, or 127 people, have Windstream DSL internet available to them in the city. The company covers the southwest Jefferson area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Jefferson.
Windstream DSL download speeds
Windstream is below average when comparing download speeds to all other internet providers in Jefferson. Versus other DSL providers in the area, Windstream DSL is the fastest. There are 3 different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Windstream goes up to 200 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Jefferson customers is up to 90 Mbps.
Show all download speeds
- 26.0% up to 200.0 Mbps
- 33.9% up to 100.0 Mbps
- 40.2% up to 10.0 Mbps
Windstream DSL upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for Windstream DSL. Compared to other ISPs, Windstream is below average where upload speeds are concerned, and the fastest compared to other Jefferson DSL providers. Windstream offers 5 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 is up to 83 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Windstream customers can get speeds up to 28 Mbps.
Show all upload speeds
- 11.0% up to 83.0 Mbps
- 25.2% up to 52.0 Mbps
- 15.7% up to 23.0 Mbps
- 7.9% up to 17.0 Mbps
- 40.2% up to 1.0 Mbps
COMPORIUM DSL in Jefferson, SC
COMPORIUM DSL coverage
About 1.30%, or 55 people, have COMPORIUM DSL internet available to them in the city. The company covers the northwest and west Jefferson area. COMPORIUM is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Jefferson.
COMPORIUM DSL download speeds
COMPORIUM is the slowest when comparing download speeds to all other internet providers in Jefferson. Versus other DSL providers in the area, COMPORIUM DSL is the slowest. There are no different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from COMPORIUM goes up to 10 Mbps, and all Jefferson customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
COMPORIUM DSL upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for COMPORIUM DSL. Compared to other ISPs, COMPORIUM is the slowest where upload speeds are concerned, and the slowest compared to other Jefferson DSL providers. COMPORIUM offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Jefferson is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Jefferson DSL by Area
This information is most helpful to those looking for homes or considering moving to Jefferson or any of the areas nearby.
How does DSL internet in Jefferson compare to the rest of South Carolina?
DSL internet speeds in Jefferson are much faster versus the average speeds in South Carolina: 0.00 Mbps in South Carolina versus 47 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in South Carolina is 0.00% versus 9.63% in Jefferson.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Jefferson 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
- Catarrh, SC: more DSL coverage, faster speeds
- Pageland, SC: more DSL coverage, slower speeds
- Mount Croghan, SC: more DSL coverage, slower speeds
- Ruby, SC: more DSL coverage, slower speeds
- Tradesville, SC: more DSL coverage, slower speeds
- Kershaw, SC: more DSL coverage, faster speeds
- Taxahaw, SC: more DSL coverage, faster speeds
- Primus, SC: more DSL coverage, slower speeds
- Oakhurst, SC: more DSL coverage, faster speeds
- Pleasant Hill, SC: more DSL coverage, slower speeds
Cities with Similar Populations
- Alamo, GA: more DSL coverage, faster speeds
- Boyce, LA: more DSL coverage, slower speeds
- Chapmansboro, TN: more DSL coverage, slower speeds
- Florissant, CO: more DSL coverage, slower speeds
- Gambier, OH: more DSL coverage, slower speeds
- Johnson Creek, WI: more DSL coverage, faster speeds
- Hanover, MN: more DSL coverage, faster speeds
- Heyworth, IL: more DSL coverage, slower speeds
- Avenue B and C, AZ: more DSL coverage, faster speeds
- Westfield, NY: more DSL coverage, slower speeds