In Centralia there are 2 residential Fiber providers covering 26.10% of the city. The average home can get speeds up to 6,356 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 Centralia, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Centralia, IL please click below.
Centralia, IL Availability Maps
Fiber Internet Service Providers in Centralia
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 Centralia are not shown.
Centralia 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 Centralia is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 26.10% of Centralia. 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 Centralia above to see who has service at your home.
How fast is fiber internet in Centralia?
The map below shows maximum fiber internet speeds by area in Centralia.
Fiber Internet Speed Key
The average Centralia home can get up to 6,356 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 7,000 Mbps, which 23.30% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 2.80% 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 Centralia.
Fiber internet speeds tend to be faster in the west parts of Centralia, and slower in the northeast areas of the city.
Is fiber the fastest internet I can get in Centralia?
The fastest internet for you may vary based on where in Centralia you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 26.10% of Centralia homes.
- Cable is fastest for 65.98% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 7.44%.
- Satellite internet may be the only option for less than 1% of Centralia homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Centralia, along with details on where in Centralia and at what speeds.
Sparklight Fiber in Centralia, IL
Sparklight fiber coverage
About 23.30%, or 3,966 people, have Sparklight fiber internet available to them in the city. The company covers the west, northwest, southwest, southeast, and south Centralia area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Centralia.
Sparklight fiber download speeds
Sparklight is the fastest when comparing download speeds to all other internet providers in Centralia. Versus other fiber providers in the area, Sparklight fiber is the fastest. There are no different maximum speeds throughout Centralia. The fastest plan anyone in Centralia can order from Sparklight goes up to 7,000 Mbps, and all Centralia customers can get this speed.
Show all download speeds
- 100.0% up to 7,000.0 Mbps
Sparklight fiber upload speeds
In Centralia download speeds tend to be equal to than upload speeds for Sparklight fiber. Compared to other ISPs, Sparklight is the fastest where upload speeds are concerned, and the fastest compared to other Centralia fiber providers. Sparklight offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Centralia is up to 7,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 7,000.0 Mbps
Spectrum Fiber in Centralia, IL
Spectrum fiber coverage
About 2.80%, or 477 people, have Spectrum fiber internet available to them in the city. The company covers the northeast Centralia area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Centralia.
Spectrum fiber download speeds
Spectrum is above average when comparing download speeds to all other internet providers in Centralia. Versus other fiber providers in the area, Spectrum fiber is the slowest. There are no different maximum speeds throughout Centralia. The fastest plan anyone in Centralia can order from Spectrum goes up to 1,000 Mbps, and all Centralia customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In Centralia download speeds tend to be equal to than upload speeds for Spectrum fiber. Compared to other ISPs, Spectrum is above average where upload speeds are concerned, and the slowest compared to other Centralia fiber providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Centralia is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Centralia Fiber by Area
This information is most helpful to those looking for homes or considering moving to Centralia or any of the areas nearby.
How does fiber internet in Centralia compare to the rest of Illinois?
Fiber internet speeds in Centralia are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 6,356 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Illinois is 0.00% versus 26.10% in Centralia.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Centralia 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
- Wamac, IL: more fiber coverage, faster speeds
- Junction City, IL: less fiber coverage, faster speeds
- Walnut Hill, IL: more fiber coverage, faster speeds
- Sandoval, IL: less fiber coverage, slower speeds
- Irvington, IL: less fiber coverage, faster speeds
- Hoffman, IL: more fiber coverage, faster speeds
- Odin, IL: more fiber coverage, slower speeds
- Ferrin, IL: more fiber coverage, faster speeds
- Cravat, IL: more fiber coverage, faster speeds
- Hoyleton, IL: less fiber coverage, faster speeds
Cities with Similar Populations
- DeSoto, MO: less fiber coverage, slower speeds
- Cranberry Twp, PA: more fiber coverage, slower speeds
- Creve Coeur, MO: more fiber coverage, slower speeds
- Crowley, LA: more fiber coverage, faster speeds
- Cudahy, WI: more fiber coverage, slower speeds
- Cumberland, RI: more fiber coverage, slower speeds
- Theodore, AL: more fiber coverage, slower speeds
- Dandridge, TN: more fiber coverage, faster speeds
- Delmar, NY: more fiber coverage, slower speeds
- Denville, NJ: more fiber coverage, faster speeds