In Randolph County there are 2 residential Cable providers covering 58.77% of the county. The average home can get speeds up to 1,002 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 Cable internet providers in Randolph County, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Randolph County, IL please click below.
Randolph County, IL Availability Maps
Cable Internet Service Providers in Randolph 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 Randolph County are not shown.
Randolph 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 Randolph County is cable internet available?
Cable Internet Availability Key
Cable is available in 58.77% of Randolph County. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is Cable One. Call one of the companies with service in Randolph County above to see who has service at your home.
How fast is cable internet in Randolph County?
The map below shows maximum cable internet speeds by area in Randolph County.
Cable Internet Speed Key
The average Randolph County home can get up to 1,002 Mbps on their cable internet plan. The fastest cable download speed in the county is 1,500 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, 58.53% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Randolph County.
Cable internet speeds tend to be faster in the northwest parts of Randolph County, and slower in the south areas of the county.
Is cable the fastest internet I can get in Randolph County?
The fastest internet for you may vary based on where in Randolph County you live. In general, fiber competes most often with cable in the county.
- Fiber is the fastest internet type for 58.69% of Randolph County homes.
- Cable is fastest for 11.09% of the county.
- DSL is fastest for 7.48%.
- Fixed wireless is fastest for 13.91%.
- Satellite internet may be the only option for 8.83% of Randolph County homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Randolph County, along with details on where in Randolph County and at what speeds.
Sparklight Cable in Randolph County, IL
Sparklight cable coverage
About 39.92%, or 12,041 people, have Sparklight cable internet available to them in the county. The company covers the south, southeast, central, east, north, northeast, and southwest Randolph County area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in some of Randolph County.
Sparklight cable download speeds
Sparklight is above average when comparing download speeds to all other internet providers in Randolph County. Versus other cable providers in the area, Sparklight cable is one of the slowest. There are no different maximum speeds throughout Randolph County. The fastest plan anyone in Randolph County can order from Sparklight goes up to 1,000 Mbps, and all Randolph County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Sparklight cable upload speeds
In Randolph County 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 Randolph County cable providers. Sparklight offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Randolph County is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Mediacom Cable in Randolph County, IL
Mediacom cable coverage
About 18.85%, or 5,687 people, have Mediacom cable internet available to them in the county. The company covers the northwest and northeast Randolph County area. Mediacom is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Randolph County.
Mediacom cable download speeds
Mediacom is above average when comparing download speeds to all other internet providers in Randolph County. Versus other cable providers in the area, Mediacom cable is one of the slowest. There are no different maximum speeds throughout Randolph County. The fastest plan anyone in Randolph County can order from Mediacom goes up to 1,000 Mbps, and all Randolph County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Mediacom cable upload speeds
In Randolph County download speeds tend to be faster than than upload speeds for Mediacom cable. Compared to other ISPs, Mediacom is below average where upload speeds are concerned, and one of the fastest compared to other Randolph County cable providers. Mediacom offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Randolph County is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Randolph County Cable by Area
This information is most helpful to those looking for homes or considering moving to Randolph County or any of the areas nearby.
How does cable internet in Randolph County compare to the rest of Illinois?
Cable internet speeds in Randolph County are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 1,002 Mbps in the county. The state has similar cable availability compared to the county. Average cable coverage in Illinois is 0.00% versus 58.77% in Randolph County.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Randolph County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does cable 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
- Ste. Genevieve County, MO: less cable coverage, slower speeds
- Perry County, IL: more cable coverage, slower speeds
- Franklin County, IL: more cable coverage, slower speeds
- Washington County, MO: less cable coverage, slower speeds
- Hamilton County, IL: less cable coverage, slower speeds
- Crawford County, MO: less cable coverage, slower speeds
- White County, IL: more cable coverage, slower speeds
- Phelps County, MO: more cable coverage, slower speeds
- Posey County, IN: less cable coverage, faster speeds
- Vanderburgh County, IN: more cable coverage, faster speeds
Counties with Similar Populations
- Warren County, PA: more cable coverage, slower speeds
- Clarion County, PA: more cable coverage, faster speeds
- Clark County, KY: more cable coverage, slower speeds
- Clark County, WI: less cable coverage, slower speeds
- Wakulla County, FL: more cable coverage, faster speeds
- Waldo County, ME: less cable coverage, slower speeds
- Wapello County, IA: more cable coverage, slower speeds
- Ware County, GA: more cable coverage, slower speeds
- Warren County, MO: more cable coverage, slower speeds
- Cidra Municipio, PR: more cable coverage, slower speeds