In Marion County there are 4 residential DSL providers covering 47.05% of the county. The average home can get speeds up to 17 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 Marion County, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Marion County, IL please click below.
Marion County, IL Availability Maps
DSL Internet Service Providers in Marion 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 Marion County are not shown.
Marion 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 Marion County is DSL internet available?
DSL Internet Availability Key
DSL is available in 47.05% of Marion 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 Marion County above to see who has service at your home.
How fast is DSL internet in Marion County?
The map below shows maximum DSL internet speeds by area in Marion County.
DSL Internet Speed Key
The average Marion County home can get up to 17 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 115 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, 42.30% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Marion County.
DSL internet speeds tend to be faster in the northwest parts of Marion County, and slower in the southwest areas of the county.
Is DSL the fastest internet I can get in Marion County?
The fastest internet for you may vary based on where in Marion County you live. In general, cable competes most often with DSL in the county.
- Fiber is the fastest internet type for 36.75% of Marion County homes.
- Cable is fastest for 41.37% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 21.51%.
- Satellite internet may be the only option for less than 1% of Marion County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Marion County, along with details on where in Marion County and at what speeds.
AT&T DSL in Marion County, IL
AT&T DSL coverage
About 33.94%, or 12,804 people, have AT&T DSL internet available to them in the county. The company covers the southwest, northeast, south, north, central, east, and west Marion County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Marion County.
AT&T DSL download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in Marion County. Versus other DSL providers in the area, AT&T DSL is one of the slowest. There are no different maximum speeds throughout Marion County. The fastest plan anyone in Marion County can order from AT&T goes up to 10 Mbps, and all Marion County customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
AT&T DSL upload speeds
In Marion County download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is one of the slowest where upload speeds are concerned, and one of the slowest compared to other Marion County DSL providers. AT&T offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Marion County is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
EarthLink DSL in Marion County, IL
EarthLink DSL coverage
About 33.94%, or 12,804 people, have EarthLink DSL internet available to them in the county. The company covers the southwest, northeast, south, north, central, east, and west Marion County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Marion County.
EarthLink DSL download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in Marion County. Versus other DSL providers in the area, EarthLink DSL is one of the slowest. There are no different maximum speeds throughout Marion County. The fastest plan anyone in Marion County can order from EarthLink goes up to 10 Mbps, and all Marion County customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
EarthLink DSL upload speeds
In Marion County download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is one of the slowest where upload speeds are concerned, and one of the slowest compared to other Marion County DSL providers. EarthLink offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Marion County is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Frontier Communications DSL in Marion County, IL
Frontier DSL coverage
About 8.06%, or 3,041 people, have Frontier DSL internet available to them in the county. The company covers the north, west, northeast, central, south, northwest, southwest, and east Marion 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 Marion County.
Frontier Communications DSL download speeds
Frontier is below average when comparing download speeds to all other internet providers in Marion County. Versus other DSL providers in the area, Frontier DSL is the fastest. There are 5 different maximum speeds throughout Marion County. The fastest plan anyone in Marion 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 Marion County customers is up to 43 Mbps.
Show all download speeds
- 10.8% up to 115.0 Mbps
- 15.4% up to 90.0 Mbps
- 10.9% up to 70.0 Mbps
- 8.5% up to 45.0 Mbps
- 54.4% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Marion County download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is below average where upload speeds are concerned, and average compared to other Marion 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 Marion 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 2.7 Mbps.
Show all upload speeds
- 10.8% up to 7.0 Mbps
- 15.4% up to 5.0 Mbps
- 19.4% up to 3.0 Mbps
- 54.4% up to 1.0 Mbps
Fidium Fiber DSL in Marion County, IL
Fidium DSL coverage
About 5.26%, or 1,984 people, have Fidium DSL internet available to them in the county. The company covers the central, north, southwest, and northwest Marion County area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Marion County.
Fidium Fiber DSL download speeds
Fidium is below average when comparing download speeds to all other internet providers in Marion County. Versus other DSL providers in the area, Fidium DSL is average. There are 3 different maximum speeds throughout Marion County. The fastest plan anyone in Marion County can order from Fidium goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Marion County customers is up to 18 Mbps.
Show all download speeds
- 0.6% up to 100.0 Mbps
- 19.7% up to 50.0 Mbps
- 79.7% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In Marion County download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is below average where upload speeds are concerned, and the fastest compared to other Marion County DSL providers. Fidium offers 2 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 Marion County is up to 10 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Fidium customers can get speeds up to 2.8 Mbps.
Show all upload speeds
- 20.3% up to 10.0 Mbps
- 79.7% up to 1.0 Mbps
Marion County DSL by Area
This information is most helpful to those looking for homes or considering moving to Marion County or any of the areas nearby.
How does DSL internet in Marion County compare to the rest of Illinois?
DSL internet speeds in Marion County are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 17 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Illinois is 0.00% versus 47.05% in Marion County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Marion 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
- Clinton County, IL: more DSL coverage, faster speeds
- Wayne County, IL: more DSL coverage, faster speeds
- St. Clair County, IL: more DSL coverage, faster speeds
- Edwards County, IL: more DSL coverage, faster speeds
- St. Louis City, MO: more DSL coverage, faster speeds
- Wabash County, IL: more DSL coverage, faster speeds
- St. Louis County, MO: more DSL coverage, faster speeds
- Knox County, IN: less DSL coverage, faster speeds
- Pike County, IN: more DSL coverage, faster speeds
- Daviess County, IN: more DSL coverage, faster speeds
Counties with Similar Populations
- Warren County, MS: more DSL coverage, faster speeds
- Barron County, WI: more DSL coverage, faster speeds
- Beaufort County, NC: more DSL coverage, faster speeds
- Bedford County, PA: more DSL coverage, faster speeds
- Beltrami County, MN: more DSL coverage, faster speeds
- Val Verde County, TX: less DSL coverage, faster speeds
- Washington County, IN: more DSL coverage, faster speeds
- Cass County, MN: more DSL coverage, faster speeds
- Warren County, VA: more DSL coverage, faster speeds
- Warren County, TN: less DSL coverage, faster speeds