In Jefferson there are 12 residential internet providers covering 99.69% of the city. The average home can get speeds up to 1,516 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.
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12 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
Availability maps for all providers in Jefferson
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
Please note some providers will take longer to load than others
Internet service is available in 99.69% of Jefferson. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you’re looking at, you can opt for satellite service. The most widely available provider is Long Lines. Now you can call companies in Jefferson with more confidence that they might be available.
How fast are internet speeds in Jefferson?
The map below shows maximum internet speeds by area in Jefferson.
1000 Mbps+
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The average Jefferson home can get up to 1,516 Mbps on their internet plan. For most people, the fastest download speed in the city is 5,000 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, less than 1% of homes can only purchase plans up to 100 Mbps. See the internet provider details below for info about their speed and coverage in Jefferson.
Internet speeds tend to be faster in the northwest parts of Jefferson, and slower in the north areas of the city.
What type of internet should I choose in Jefferson?
The fastest internet for you may vary based on where in Jefferson you live. If speed is your main concern, fiber will be the fastest internet in the city.
- Fiber is the fastest internet type for 61.41% of Jefferson homes.
- Cable is fastest for 37.34% 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.
Internet Market Health in Jefferson
4+ options
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The map shows how competitive the Jefferson internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in Jefferson based on what connections the average home has availabile:
- Average number of internet service providers to a home: 6.5 (very healthy)
- Average types of service (fiber, cable, DSL, etc): 2.9 (healthy)
- Average providers with broadband (25 Mbps+) speeds: 6.4 (very healthy)
Overall, competition is very healthy.
Jefferson internet customers have the ability to buy internet service from 1 to 9 different providers, depending on where they live. For different types of service, Jefferson homes have between 1 and 4 options. The type(s) of service available are fixed wireless, cable, fiber, and dsl, though these may vary depending on the region within the city.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. Jefferson internet customers who want faster speeds have between 1 and 9 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, Jefferson is doing quite well.
TV & Internet 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.
Long Lines Cable in Jefferson, SD
Long Lines cable coverage
About 75.36%, or 1,447 people, have Long Lines cable internet available to them in the city. The company covers the southeast, south, north, northeast, east, central, southwest, and west Jefferson area. Long Lines is a large internet service provider internet service providers in the US, with internet service available in much of Jefferson.
Long Lines cable download speeds
Long Lines is above average when comparing download speeds to all other internet providers in Jefferson. Versus other cable providers in the area, Long Lines cable is the fastest. There are no different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Long Lines goes up to 1,500 Mbps, and all Jefferson customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
Long Lines cable upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for Long Lines cable. Compared to other ISPs, Long Lines is below average where upload speeds are concerned, and one of the fastest compared to other Jefferson cable providers. Long Lines offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Jefferson is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Long Lines Fiber in Jefferson, SD
Long Lines fiber coverage
About 61.41%, or 1,179 people, have Long Lines fiber internet available to them in the city. The company covers the entire Jefferson area. Long Lines is a large internet service provider internet service providers in the US, with internet service available in a majority of Jefferson.
Long Lines fiber download speeds
Long Lines is above average when comparing download speeds to all other internet providers in Jefferson. Versus other fiber providers in the area, Long Lines fiber is below average. There are 2 different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Long Lines goes up to 1,500 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Jefferson customers is up to 1,486 Mbps.
Show all download speeds
- 97.2% up to 1,500.0 Mbps
- 2.8% up to 1,000.0 Mbps
Long Lines fiber upload speeds
In Jefferson download speeds tend to be equal to than upload speeds for Long Lines fiber. Compared to other ISPs, Long Lines is above average where upload speeds are concerned, and below average compared to other Jefferson fiber providers. Long Lines offers 2 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 1,500 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, Long Lines customers can get speeds up to 1,486 Mbps.
Show all upload speeds
- 97.2% up to 1,500.0 Mbps
- 2.8% up to 1,000.0 Mbps
Centurylink DSL in Jefferson, SD
Centurylink DSL coverage
About 41.35%, or 794 people, have Centurylink DSL internet available to them in the city. The company covers the south, southeast, west, northwest, and east Jefferson area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in some of Jefferson.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Jefferson. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 4 different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Centurylink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Jefferson customers is up to 70 Mbps.
Show all download speeds
- 61.3% up to 100.0 Mbps
- 7.8% up to 60.0 Mbps
- 2.6% up to 40.0 Mbps
- 28.2% up to 10.0 Mbps
Centurylink DSL upload speeds
In Jefferson 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 DSL providers. Centurylink offers 4 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 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 6.9 Mbps.
Show all upload speeds
- 61.3% up to 10.0 Mbps
- 7.8% up to 5.0 Mbps
- 2.6% up to 3.0 Mbps
- 28.2% up to 1.0 Mbps
Long Lines DSL in Jefferson, SD
Long Lines DSL coverage
About 38.28%, or 735 people, have Long Lines DSL internet available to them in the city. The company covers the southeast, south, and east Jefferson area. Long Lines is a large internet service provider internet service providers in the US, with internet service available in some of Jefferson.
Long Lines DSL download speeds
Long Lines is below average when comparing download speeds to all other internet providers in Jefferson. Versus other DSL providers in the area, Long Lines DSL is the slowest. There are no different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Long Lines goes up to 25 Mbps, and all Jefferson customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
Long Lines DSL upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for Long Lines DSL. Compared to other ISPs, Long Lines is below average where upload speeds are concerned, and the slowest compared to other Jefferson DSL providers. Long Lines offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Jefferson is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
Sparklight Cable in Jefferson, SD
Sparklight cable coverage
About 36.93%, or 709 people, have Sparklight cable internet available to them in the city. The company covers the southeast and south Jefferson area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in some of Jefferson.
Sparklight cable download speeds
Sparklight is above average when comparing download speeds to all other internet providers in Jefferson. Versus other cable providers in the area, Sparklight cable is the slowest. There are no different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Sparklight goes up to 1,000 Mbps, and all Jefferson customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Sparklight cable upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for Sparklight cable. Compared to other ISPs, Sparklight is below average where upload speeds are concerned, and one of the fastest compared to other Jefferson cable providers. Sparklight offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Jefferson is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
ImOn Communications Fiber in Jefferson, SD
ImOn Communications fiber coverage
About 1.09%, or 21 people, have ImOn Communications fiber internet available to them in the city. The company covers the west Jefferson area. ImOn Communications is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Jefferson.
ImOn Communications fiber download speeds
ImOn Communications is above average when comparing download speeds to all other internet providers in Jefferson. Versus other fiber providers in the area, ImOn Communications fiber is the slowest. There are no different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from ImOn Communications goes up to 1,000 Mbps, and all Jefferson customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
ImOn Communications fiber upload speeds
In Jefferson download speeds tend to be equal to than upload speeds for ImOn Communications fiber. Compared to other ISPs, ImOn Communications is above average where upload speeds are concerned, and the slowest compared to other Jefferson fiber providers. ImOn Communications offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Jefferson is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
EarthLink Fixed Wireless in Jefferson, SD
EarthLink fixed wireless coverage
About 92.81%, or 1,782 people, have EarthLink fixed wireless internet available to them in the city. The company covers the entire Jefferson area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Jefferson.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Jefferson. Versus other fixed wireless providers in the area, EarthLink fixed wireless is below average. There are 2 different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Jefferson customers is up to 38 Mbps.
Show all download speeds
- 18.0% up to 100.0 Mbps
- 82.0% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and below average compared to other Jefferson fixed wireless providers. EarthLink offers 2 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 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, EarthLink customers can get speeds up to 6.1 Mbps.
Show all upload speeds
- 18.0% up to 20.0 Mbps
- 82.0% up to 3.0 Mbps
AT&T Fixed Wireless in Jefferson, SD
AT&T fixed wireless coverage
About 92.81%, or 1,782 people, have AT&T fixed wireless internet available to them in the city. The company covers the entire Jefferson area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of Jefferson.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in Jefferson. Versus other fixed wireless providers in the area, AT&T fixed wireless is below average. There are 2 different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Jefferson customers is up to 38 Mbps.
Show all download speeds
- 18.0% up to 100.0 Mbps
- 82.0% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and below average compared to other Jefferson fixed wireless providers. AT&T offers 2 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 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, AT&T customers can get speeds up to 6.1 Mbps.
Show all upload speeds
- 18.0% up to 20.0 Mbps
- 82.0% up to 3.0 Mbps
T-Mobile Home Internet Fixed Wireless in Jefferson, SD
T-Mobile Home Internet fixed wireless coverage
About 91.41%, or 1,755 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the entire Jefferson area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in most of Jefferson.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in Jefferson. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are 2 different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from T-Mobile Home Internet goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Jefferson customers is up to 69 Mbps.
Show all download speeds
- 59.0% up to 100.0 Mbps
- 41.0% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and above average compared to other Jefferson fixed wireless providers. T-Mobile Home Internet offers 2 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 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, T-Mobile Home Internet customers can get speeds up to 13 Mbps.
Show all upload speeds
- 59.0% up to 20.0 Mbps
- 41.0% up to 3.0 Mbps
Verizon Fixed Wireless in Jefferson, SD
Verizon fixed wireless coverage
About 67.14%, or 1,289 people, have Verizon fixed wireless internet available to them in the city. The company covers the entire Jefferson area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in much of Jefferson.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in Jefferson. Versus other fixed wireless providers in the area, Verizon fixed wireless is the fastest. There are 2 different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Verizon goes up to 300 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Jefferson customers is up to 222 Mbps.
Show all download speeds
- 71.8% up to 300.0 Mbps
- 28.2% up to 25.0 Mbps
Verizon fixed wireless upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and above average compared to other Jefferson fixed wireless providers. Verizon offers 2 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 20 Mbps. Some customers have slower plan choices, which only go up to 6.0 Mbps. On average, Verizon customers can get speeds up to 16 Mbps.
Show all upload speeds
- 71.8% up to 20.0 Mbps
- 28.2% up to 6.0 Mbps
Midco Fixed Wireless in Jefferson, SD
Midco fixed wireless coverage
About 46.35%, or 890 people, have Midco fixed wireless internet available to them in the city. The company covers the north, northeast, west, central, east, northwest, and southwest Jefferson area. Midco is a large internet service provider internet service providers in the US, with internet service available in some of Jefferson.
Midco fixed wireless download speeds
Midco is below average when comparing download speeds to all other internet providers in Jefferson. Versus other fixed wireless providers in the area, Midco fixed wireless is above average. There are no different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Midco goes up to 100 Mbps, and all Jefferson customers can get this speed.
Show all download speeds
- 100.0% up to 100.0 Mbps
Midco fixed wireless upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for Midco fixed wireless. Compared to other ISPs, Midco is below average where upload speeds are concerned, and the fastest compared to other Jefferson fixed wireless providers. Midco offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Jefferson is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
Nextlink Fixed Wireless in Jefferson, SD
Nextlink fixed wireless coverage
About 1.09%, or 21 people, have Nextlink fixed wireless internet available to them in the city. The company covers the northwest Jefferson area. Nextlink 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.
Nextlink fixed wireless download speeds
Nextlink is the slowest when comparing download speeds to all other internet providers in Jefferson. Versus other fixed wireless providers in the area, Nextlink fixed wireless is the slowest. There are no different maximum speeds throughout Jefferson. The fastest plan anyone in Jefferson can order from Nextlink goes up to 10 Mbps, and all Jefferson customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Nextlink fixed wireless upload speeds
In Jefferson download speeds tend to be faster than than upload speeds for Nextlink fixed wireless. Compared to other ISPs, Nextlink is the slowest where upload speeds are concerned, and the slowest compared to other Jefferson fixed wireless providers. Nextlink 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 Internet 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 internet in Jefferson compare to the rest of South Dakota?
Internet speeds in Jefferson are slower versus the average speeds in South Dakota: 2,675 Mbps in South Dakota versus 1,516 Mbps in the city. The state has similar internet availability compared to the city. Average internet coverage in South Dakota is 98.21% versus 99.69% in Jefferson.
What zip codes have widespread internet?
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 internet service 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
- North Sioux City, SD: less internet coverage, slower speeds
- Willis, NE: more internet coverage, slower speeds
- Ponca, NE: less internet coverage, slower speeds
- Jackson, NE: less internet coverage, slower speeds
- Elk Point, SD: more internet coverage, faster speeds
- Sioux City, IA: less internet coverage, faster speeds
- South Sioux City, NE: more internet coverage, slower speeds
- Millnerville, IA: less internet coverage, slower speeds
- Westfield, IA: more internet coverage, slower speeds
- Junction City, SD: more internet coverage, slower speeds
Cities with Similar Populations
- Worton, MD: more internet coverage, faster speeds
- Rosenhayn, NJ: more internet coverage, slower speeds
- Sherman, NY: less internet coverage, slower speeds
- Delaware City, DE: more internet coverage, faster speeds
- Dale, WI: more internet coverage, slower speeds
- Cope, SC: more internet coverage, slower speeds
- Constable, NY: less internet coverage, slower speeds
- Colquitt, LA: less internet coverage, slower speeds
- Collings Lakes, NJ: more internet coverage, faster speeds
- Colchester, IL: less internet coverage, slower speeds