In Carterville there are 4 residential Fiber providers covering 99.26% of the city. The average home can get speeds up to 6,986 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 Fiber internet providers in Carterville, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Carterville, IL please click below.
Carterville, IL Availability Maps
Fiber Internet Service Providers in Carterville
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 Carterville are not shown.
Carterville 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 Carterville is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 99.26% of Carterville. Areas in green have fiber 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 Carterville above to see who has service at your home.
How fast is fiber internet in Carterville?
The map below shows maximum fiber internet speeds by area in Carterville.
Fiber Internet Speed Key
The average Carterville home can get up to 6,986 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 10,000 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 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Carterville.
Fiber internet speeds tend to be faster in the south parts of Carterville, and slower in the southeast areas of the city.
Is fiber the fastest internet I can get in Carterville?
The fastest internet for you may vary based on where in Carterville you live. In general, satellite competes most often with fiber in the city.
- Fiber is the fastest internet type for 99.26% of Carterville homes.
- Cable is fastest for less than 1% 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 Carterville homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Carterville, along with details on where in Carterville and at what speeds.
Sparklight Fiber in Carterville, IL
Sparklight fiber coverage
About 98.73%, or 7,470 people, have Sparklight fiber internet available to them in the city. The company covers the entire Carterville area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in most of Carterville.
Sparklight fiber download speeds
Sparklight is above average when comparing download speeds to all other internet providers in Carterville. Versus other fiber providers in the area, Sparklight fiber is above average. There are no different maximum speeds throughout Carterville. The fastest plan anyone in Carterville can order from Sparklight goes up to 7,000 Mbps, and all Carterville customers can get this speed.
Show all download speeds
- 100.0% up to 7,000.0 Mbps
Sparklight fiber upload speeds
In Carterville download speeds tend to be equal to than upload speeds for Sparklight fiber. Compared to other ISPs, Sparklight is above average where upload speeds are concerned, and above average compared to other Carterville fiber providers. Sparklight offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Carterville is up to 7,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 7,000.0 Mbps
Hamilton County Communications Fiber in Carterville, IL
Hamilton County Communications fiber coverage
About 51.77%, or 3,917 people, have Hamilton County Communications fiber internet available to them in the city. The company covers the entire Carterville area. Hamilton County Communications is a large internet service provider internet service providers in the US, with internet service available in a majority of Carterville.
Hamilton County Communications fiber download speeds
Hamilton County Communications is below average when comparing download speeds to all other internet providers in Carterville. Versus other fiber providers in the area, Hamilton County Communications fiber is one of the slowest. There are no different maximum speeds throughout Carterville. The fastest plan anyone in Carterville can order from Hamilton County Communications goes up to 1,000 Mbps, and all Carterville customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Hamilton County Communications fiber upload speeds
In Carterville download speeds tend to be equal to than upload speeds for Hamilton County Communications fiber. Compared to other ISPs, Hamilton County Communications is below average where upload speeds are concerned, and one of the slowest compared to other Carterville fiber providers. Hamilton County Communications offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Carterville is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Frontier Communications Fiber in Carterville, IL
Frontier fiber coverage
About 34.85%, or 2,637 people, have Frontier fiber internet available to them in the city. The company covers the southwest, west, south, central, northeast, southeast, and east Carterville area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Carterville.
Frontier Communications fiber download speeds
Frontier is above average when comparing download speeds to all other internet providers in Carterville. Versus other fiber providers in the area, Frontier fiber is above average. There are 2 different maximum speeds throughout Carterville. The fastest plan anyone in Carterville can order from Frontier goes up to 7,000 Mbps, the slowest package only goes up to 5,000 Mbps, and the city-wide average maximum speed for Carterville customers is up to 6,782 Mbps.
Show all download speeds
- 89.1% up to 7,000.0 Mbps
- 10.9% up to 5,000.0 Mbps
Frontier Communications fiber upload speeds
In Carterville download speeds tend to be equal to than upload speeds for Frontier fiber. Compared to other ISPs, Frontier is above average where upload speeds are concerned, and above average compared to other Carterville fiber providers. Frontier 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 Carterville is up to 7,000 Mbps. Some customers have slower plan choices, which only go up to 5,000 Mbps. On average, Frontier customers can get speeds up to 6,782 Mbps.
Show all upload speeds
- 89.1% up to 7,000.0 Mbps
- 10.9% up to 5,000.0 Mbps
Southern Illinois Wireless Internet Fiber in Carterville, IL
4SIWI fiber coverage
About 1.30%, or 98 people, have 4SIWI fiber internet available to them in the city. The company covers the southeast Carterville area. 4SIWI is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Carterville.
Southern Illinois Wireless Internet fiber download speeds
4SIWI is below average when comparing download speeds to all other internet providers in Carterville. Versus other fiber providers in the area, 4SIWI fiber is one of the slowest. There are no different maximum speeds throughout Carterville. The fastest plan anyone in Carterville can order from 4SIWI goes up to 1,000 Mbps, and all Carterville customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Southern Illinois Wireless Internet fiber upload speeds
In Carterville download speeds tend to be equal to than upload speeds for 4SIWI fiber. Compared to other ISPs, 4SIWI is below average where upload speeds are concerned, and one of the slowest compared to other Carterville fiber providers. 4SIWI offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Carterville is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Carterville Fiber by Area
This information is most helpful to those looking for homes or considering moving to Carterville or any of the areas nearby.
How does fiber internet in Carterville compare to the rest of Illinois?
Fiber internet speeds in Carterville are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 6,986 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Illinois is 0.00% versus 99.26% in Carterville.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Carterville are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber internet 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
- Crainville, IL: more fiber coverage, slower speeds
- Cambria, IL: more fiber coverage, faster speeds
- Crab Orchard Estates, IL: less fiber coverage, faster speeds
- Colp, IL: less fiber coverage, faster speeds
- Energy, IL: more fiber coverage, faster speeds
- Herrin, IL: less fiber coverage, slower speeds
- Reeds Station, IL: less fiber coverage, slower speeds
- Hurst, IL: less fiber coverage, faster speeds
- Bush, IL: more fiber coverage, faster speeds
- Stiritz, IL: more fiber coverage, faster speeds
Cities with Similar Populations
- Unionville, CT: less fiber coverage, faster speeds
- Van Alstyne, TX: less fiber coverage, slower speeds
- Black River Falls, WI: less fiber coverage, slower speeds
- Bishopville, SC: less fiber coverage, slower speeds
- Berryville, AR: less fiber coverage, slower speeds
- Bernardsville, NJ: less fiber coverage, slower speeds
- Berkeley, MO: less fiber coverage, slower speeds
- Belfast, ME: less fiber coverage, slower speeds
- Umatilla, OR: less fiber coverage, slower speeds
- West Union, OH: less fiber coverage, slower speeds