In Jefferson County there are 2 residential DSL providers covering 16.64% of the county. The average home can get speeds up to 55 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, NY.
To see availability maps for all providers including fiber, cable, DSL, and more in Jefferson County, NY please click below.
Jefferson County, NY 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 16.64% of Jefferson County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Frontier. 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 55 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 115 Mbps, which 2.20% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 7.11% 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 south 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, cable competes most often with DSL in the county.
- Fiber is the fastest internet type for 24.24% of Jefferson County homes.
- Cable is fastest for 59.46% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for 15.74% 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.
Frontier Communications DSL in Jefferson County, NY
Frontier DSL coverage
About 9.95%, or 11,614 people, have Frontier DSL internet available to them in the county. The company covers the southwest, south, and southeast Jefferson County area. Frontier 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 County.
Frontier Communications DSL download speeds
Frontier is the slowest when comparing download speeds to all other internet providers in Jefferson County. Versus other DSL providers in the area, Frontier DSL is the slowest. There are 5 different maximum speeds throughout Jefferson County. The fastest plan anyone in Jefferson County can order from Frontier goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Jefferson County customers is up to 48 Mbps.
Show all download speeds
- 22.2% up to 115.0 Mbps
- 11.9% up to 90.0 Mbps
- 4.2% up to 70.0 Mbps
- 8.3% up to 45.0 Mbps
- 53.4% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Jefferson County download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is the slowest where upload speeds are concerned, and the slowest compared to other Jefferson County DSL providers. Frontier offers 4 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 7.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 3.1 Mbps.
Show all upload speeds
- 22.2% up to 7.0 Mbps
- 11.9% up to 5.0 Mbps
- 12.5% up to 3.0 Mbps
- 53.4% up to 1.0 Mbps
TDS DSL in Jefferson County, NY
TDS DSL coverage
About 6.69%, or 7,811 people, have TDS DSL internet available to them in the county. The company covers the west, northwest, and southwest Jefferson County area. TDS is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Jefferson County.
TDS DSL download speeds
TDS is below average when comparing download speeds to all other internet providers in Jefferson County. Versus other DSL providers in the area, TDS DSL is the fastest. There are 4 different maximum speeds throughout Jefferson County. The fastest plan anyone in Jefferson County can order from TDS 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 66 Mbps.
Show all download speeds
- 56.2% up to 100.0 Mbps
- 10.4% up to 50.0 Mbps
- 6.6% up to 25.0 Mbps
- 26.8% up to 10.0 Mbps
TDS DSL upload speeds
In Jefferson County download speeds tend to be faster than than upload speeds for TDS DSL. Compared to other ISPs, TDS is below average where upload speeds are concerned, and the fastest compared to other Jefferson County DSL providers. TDS 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 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, TDS customers can get speeds up to 12 Mbps.
Show all upload speeds
- 35.2% up to 20.0 Mbps
- 21.0% up to 15.0 Mbps
- 10.4% up to 10.0 Mbps
- 6.6% up to 5.0 Mbps
- 26.8% up to 1.0 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 New York?
DSL internet speeds in Jefferson County are much faster versus the average speeds in New York: 0.00 Mbps in New York versus 55 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in New York is 0.00% versus 16.64% 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
- Essex County, NY: less DSL coverage, slower speeds
- Addison County, VT: more DSL coverage, slower speeds
- Orange County, VT: more DSL coverage, slower speeds
- Androscoggin County, ME: more DSL coverage, slower speeds
- Sagadahoc County, ME: more DSL coverage, slower speeds
- Lincoln County, ME: more DSL coverage, slower speeds
- Knox County, ME: more DSL coverage, slower speeds
- Arenac County, MI: more DSL coverage, slower speeds
- Gladwin County, MI: more DSL coverage, slower speeds
- Clare County, MI: more DSL coverage, slower speeds
Counties with Similar Populations
- Missoula County, MT: more DSL coverage, slower speeds
- Hardin County, KY: more DSL coverage, faster speeds
- Henderson County, NC: more DSL coverage, faster speeds
- Houston County, AL: more DSL coverage, slower speeds
- Jasper County, MO: more DSL coverage, slower speeds
- Albemarle County, VA: more DSL coverage, faster speeds
- Kennebec County, ME: more DSL coverage, slower speeds
- La Crosse County, WI: more DSL coverage, faster speeds
- LaPorte County, IN: more DSL coverage, slower speeds
- LaSalle County, IL: more DSL coverage, slower speeds