In Dupo there is 1 residential Fiber provider covering 31.33% of the city. The average home can get speeds up to 1,000 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 Dupo, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Dupo, IL please click below.
Fiber Internet Service Provider in Dupo
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 Dupo are not shown.
Dupo 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 Dupo is fiber internet available?

Fiber Internet Availability Key
Fiber is available in 31.33% of Dupo. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is HTC. Call one of the companies with service in Dupo above to see who has service at your home.
How fast is fiber internet in Dupo?
The map below shows maximum fiber internet speeds by area in Dupo.

Fiber Internet Speed Key
The average Dupo home can get up to 1,000 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 1,000 Mbps, which 31.33% of residents can get.
Is fiber the fastest internet I can get in Dupo?
The fastest internet for you may vary based on where in Dupo you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 31.33% of Dupo homes.
- Cable is fastest for 65.54% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 2.30%.
- Satellite internet may be the only option for less than 1% of Dupo homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Dupo, along with details on where in Dupo and at what speeds.
Harrisonville Telephone Company Fiber in Dupo, IL

HTC fiber coverage
About 31.33%, or 1,441 people, have HTC fiber internet available to them in the city. The company covers the southwest, central, south, and west Dupo area. HTC is a large internet service provider internet service providers in the US, with internet service available in a small portion of Dupo.
Harrisonville Telephone Company fiber download speeds
HTC is one of the fastest when comparing download speeds to all other internet providers in Dupo. Versus other fiber providers in the area, HTC fiber is the fastest. There are no different maximum speeds throughout Dupo. The fastest plan anyone in Dupo can order from HTC goes up to 1,000 Mbps, and all Dupo customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Harrisonville Telephone Company fiber upload speeds
In Dupo download speeds tend to be equal to than upload speeds for HTC fiber. Compared to other ISPs, HTC is one of the fastest where upload speeds are concerned, and the fastest compared to other Dupo fiber providers. HTC offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Dupo is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Dupo Fiber by Area
This information is most helpful to those looking for homes or considering moving to Dupo or any of the areas nearby.
How does fiber internet in Dupo compare to the rest of Illinois?
Fiber internet speeds in Dupo are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 1,000 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Illinois is 0.00% versus 31.33% in Dupo.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Dupo 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
- East Carondelet, IL: less fiber coverage, similar speeds
- Cahokia, IL: less fiber coverage, faster speeds
- Phelps, IL: more fiber coverage, similar speeds
- Lemay, MO: more fiber coverage, faster speeds
- Bella Villa, MO: more fiber coverage, faster speeds
- Columbia, IL: more fiber coverage, similar speeds
- Wilbur Park, MO: more fiber coverage, faster speeds
- St. George, MO: more fiber coverage, faster speeds
- Mehlville, MO: more fiber coverage, faster speeds
- Centreville, IL: less fiber coverage, faster speeds
Cities with Similar Populations
- New Ipswich, NH: less fiber coverage, faster speeds
- Athens, PA: more fiber coverage, faster speeds
- Morrison, TN: more fiber coverage, similar speeds
- Ashland, PA: less fiber coverage, faster speeds
- Cassville, MO: more fiber coverage, faster speeds
- Lewisburg, WV: more fiber coverage, faster speeds
- Ashford, AL: less fiber coverage, faster speeds
- New Hampton, IA: more fiber coverage, similar speeds
- Olivet, MI: more fiber coverage, similar speeds
- Barrington Hills, IL: less fiber coverage, faster speeds


