In Sangamon County there are 3 residential Cable providers covering 88.91% of the county. The average home can get speeds up to 1,361 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 Sangamon County, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Sangamon County, IL please click below.
Sangamon County, IL Availability Maps
Cable Internet Service Providers in Sangamon 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 Sangamon County are not shown.
Sangamon 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 Sangamon County is cable internet available?
Cable Internet Availability Key
Cable is available in 88.91% of Sangamon County. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is XFINITY. Call one of the companies with service in Sangamon County above to see who has service at your home.
How fast is cable internet in Sangamon County?
The map below shows maximum cable internet speeds by area in Sangamon County.
Cable Internet Speed Key
The average Sangamon County home can get up to 1,361 Mbps on their cable internet plan. The fastest cable download speed in the county is 2,000 Mbps, which 19.44% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 6.25% 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 Sangamon County.
Cable internet speeds tend to be faster in the southeast parts of Sangamon County, and slower in the northeast areas of the county.
Is cable the fastest internet I can get in Sangamon County?
The fastest internet for you may vary based on where in Sangamon County you live. In general, fiber competes most often with cable in the county.
- Fiber is the fastest internet type for 38.56% of Sangamon County homes.
- Cable is fastest for 56.09% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 4.64%.
- Satellite internet may be the only option for less than 1% of Sangamon County homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Sangamon County, along with details on where in Sangamon County and at what speeds.
XFINITY from Comcast Cable in Sangamon County, IL
XFINITY cable coverage
About 82.67%, or 162,307 people, have XFINITY cable internet available to them in the county. The company covers the entire Sangamon County area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in much of Sangamon County.
XFINITY from Comcast cable download speeds
XFINITY is above average when comparing download speeds to all other internet providers in Sangamon County. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout Sangamon County. The fastest plan anyone in Sangamon County can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the county-wide average maximum speed for Sangamon County customers is up to 1,388 Mbps.
Show all download speeds
- 23.5% up to 2,000.0 Mbps
- 76.5% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Sangamon County download speeds tend to be faster than than upload speeds for XFINITY cable. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the fastest compared to other Sangamon County cable providers. XFINITY 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 Sangamon County is up to 250 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 86 Mbps.
Show all upload speeds
- 23.5% up to 250.0 Mbps
- 76.5% up to 35.0 Mbps
Mediacom Cable in Sangamon County, IL
Mediacom cable coverage
About 3.68%, or 7,229 people, have Mediacom cable internet available to them in the county. The company covers the northeast, southwest, east, north, and northwest Sangamon County area. Mediacom is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Sangamon County.
Mediacom cable download speeds
Mediacom is below average when comparing download speeds to all other internet providers in Sangamon County. Versus other cable providers in the area, Mediacom cable is one of the slowest. There are no different maximum speeds throughout Sangamon County. The fastest plan anyone in Sangamon County can order from Mediacom goes up to 1,000 Mbps, and all Sangamon County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Mediacom cable upload speeds
In Sangamon 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 slowest compared to other Sangamon County cable providers. Mediacom offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sangamon County is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Sparklight Cable in Sangamon County, IL
Sparklight cable coverage
About 2.87%, or 5,643 people, have Sparklight cable internet available to them in the county. The company covers the southwest Sangamon County area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Sangamon County.
Sparklight cable download speeds
Sparklight is below average when comparing download speeds to all other internet providers in Sangamon County. Versus other cable providers in the area, Sparklight cable is one of the slowest. There are no different maximum speeds throughout Sangamon County. The fastest plan anyone in Sangamon County can order from Sparklight goes up to 1,000 Mbps, and all Sangamon County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Sparklight cable upload speeds
In Sangamon 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 slowest compared to other Sangamon County cable providers. Sparklight offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sangamon County is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Sangamon County Cable by Area
This information is most helpful to those looking for homes or considering moving to Sangamon County or any of the areas nearby.
How does cable internet in Sangamon County compare to the rest of Illinois?
Cable internet speeds in Sangamon County are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 1,361 Mbps in the county. The state has similar cable availability compared to the county. Average cable coverage in Illinois is 0.00% versus 88.91% in Sangamon County.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Sangamon 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
- Morgan County, IL: less cable coverage, slower speeds
- Macon County, IL: more cable coverage, faster speeds
- Scott County, IL: less cable coverage, slower speeds
- Moultrie County, IL: less cable coverage, slower speeds
- Douglas County, IL: less cable coverage, slower speeds
- Marion County, MO: less cable coverage, slower speeds
- Edgar County, IL: less cable coverage, slower speeds
- Vermillion County, IN: less cable coverage, slower speeds
- Shelby County, MO: less cable coverage, slower speeds
- Parke County, IN: less cable coverage, slower speeds
Counties with Similar Populations
- Richmond County, GA: more cable coverage, faster speeds
- Benton County, AR: less cable coverage, faster speeds
- Benton County, WA: more cable coverage, slower speeds
- Berkeley County, SC: less cable coverage, faster speeds
- Yavapai County, AZ: less cable coverage, slower speeds
- Broome County, NY: more cable coverage, slower speeds
- Brown County, WI: more cable coverage, slower speeds
- Buncombe County, NC: more cable coverage, slower speeds
- Butte County, CA: less cable coverage, faster speeds
- Cabarrus County, NC: more cable coverage, slower speeds