In St. Clair County there are 11 residential internet providers covering 98.44% of the county. The average home can get speeds up to 1,714 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.
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11 Internet Service Providers in St. Clair 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 St. Clair County are not shown.
St. Clair 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
Availability maps for all providers in St. Clair County
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
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Internet service is available in 98.44% of St. Clair County. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is Conexon Connect. Now you can call companies in St. Clair County with more confidence that they might be available.
How fast are internet speeds in St. Clair County?
The map below shows maximum internet speeds by area in St. Clair County.
Internet Speed Key
The average St. Clair County home can get up to 1,714 Mbps on their internet plan. For most people, the fastest download speed in the county is 2,000 Mbps, which 73.59% 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 10 Mbps. See the internet provider details below for info about their speed and coverage in St. Clair County.
Internet speeds tend to be faster in the south parts of St. Clair County, and slower in the northwest areas of the county.
What type of internet should I choose in St. Clair County?
The fastest internet for you may vary based on where in St. Clair County you live. If speed is your main concern, fiber will be the fastest internet in the county.
- Fiber is the fastest internet type for 73.59% of St. Clair County homes.
- Cable is fastest for 20.78% of the county.
- DSL is fastest for 1.39%.
- Fixed wireless is fastest for 2.68%.
- Satellite internet may be the only option for 1.56% of St. Clair County homes.
Internet Market Health in St. Clair County
Internet Competition Key
The map shows how competitive the St. Clair County internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in St. Clair County based on what connections the average home has availabile:
- Average number of internet service providers to a home: 3.3 (very unhealthy)
- Average types of service (fiber, cable, DSL, etc): 2.5 (unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 3.1 (very unhealthy)
Overall, competition is very unhealthy.
St. Clair County internet customers have the ability to buy internet service from 1 to 8 different providers, depending on where they live. For different types of service, St. Clair County homes have between 1 and 4 options. The type(s) of service available are fixed wireless, fiber, dsl, and cable, though these may vary depending on the region within the county.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. St. Clair County internet customers who want faster speeds have between 0 and 8 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, St. Clair County badly needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in St. Clair County, along with details on where in St. Clair County and at what speeds.
Conexon Connect Fiber in St. Clair County, MO
Conexon Connect fiber coverage
About 73.59%, or 6,832 people, have Conexon Connect fiber internet available to them in the county. The company covers the entire St. Clair County area. Conexon Connect is a large internet service provider internet service providers in the US, with internet service available in much of St. Clair County.
Conexon Connect fiber download speeds
Conexon Connect is the fastest when comparing download speeds to all other internet providers in St. Clair County. Versus other fiber providers in the area, Conexon Connect fiber is the fastest. There are no different maximum speeds throughout St. Clair County. The fastest plan anyone in St. Clair County can order from Conexon Connect goes up to 2,000 Mbps, and all St. Clair County customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
Conexon Connect fiber upload speeds
In St. Clair County download speeds tend to be equal to than upload speeds for Conexon Connect fiber. Compared to other ISPs, Conexon Connect is the fastest where upload speeds are concerned, and the fastest compared to other St. Clair County fiber providers. Conexon Connect offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in St. Clair County is up to 2,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 2,000.0 Mbps
Brightspeed DSL in St. Clair County, MO
Brightspeed DSL coverage
About 60.81%, or 5,646 people, have Brightspeed DSL internet available to them in the county. The company covers the northwest, north, central, southeast, east, south, northeast, and southwest St. Clair County area. Brightspeed is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of St. Clair County.
Brightspeed DSL download speeds
Brightspeed is below average when comparing download speeds to all other internet providers in St. Clair County. Versus other DSL providers in the area, Brightspeed DSL is the fastest. There are 5 different maximum speeds throughout St. Clair County. The fastest plan anyone in St. Clair County can order from Brightspeed goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for St. Clair County customers is up to 47 Mbps.
Show all download speeds
- 15.4% up to 100.0 Mbps
- 20.1% up to 80.0 Mbps
- 5.0% up to 60.0 Mbps
- 20.3% up to 40.0 Mbps
- 39.2% up to 10.0 Mbps
Brightspeed DSL upload speeds
In St. Clair County download speeds tend to be faster than than upload speeds for Brightspeed DSL. Compared to other ISPs, Brightspeed is below average where upload speeds are concerned, and the fastest compared to other St. Clair County DSL providers. Brightspeed offers 4 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 St. Clair County is up to 10 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Brightspeed customers can get speeds up to 4.8 Mbps.
Show all upload speeds
- 35.5% up to 10.0 Mbps
- 5.0% up to 5.0 Mbps
- 20.3% up to 3.0 Mbps
- 39.2% up to 1.0 Mbps
Mediacom Cable in St. Clair County, MO
Mediacom cable coverage
About 30.09%, or 2,794 people, have Mediacom cable internet available to them in the county. The company covers the northwest, central, north, and east St. Clair 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 St. Clair County.
Mediacom cable download speeds
Mediacom is above average when comparing download speeds to all other internet providers in St. Clair County. Versus other cable providers in the area, Mediacom cable is the fastest. There are no different maximum speeds throughout St. Clair County. The fastest plan anyone in St. Clair County can order from Mediacom goes up to 1,000 Mbps, and all St. Clair County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Mediacom cable upload speeds
In St. Clair 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 the fastest compared to other St. Clair County cable providers. Mediacom offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in St. Clair County is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Wisper Internet Fixed Wireless in St. Clair County, MO
Wisper Internet fixed wireless coverage
About 71.69%, or 6,656 people, have Wisper Internet fixed wireless internet available to them in the county. The company covers the entire St. Clair County area. Wisper Internet is a large internet service provider internet service providers in the US, with internet service available in much of St. Clair County.
Wisper Internet fixed wireless download speeds
Wisper Internet is average when comparing download speeds to all other internet providers in St. Clair County. Versus other fixed wireless providers in the area, Wisper Internet fixed wireless is the fastest. There are 2 different maximum speeds throughout St. Clair County. The fastest plan anyone in St. Clair County can order from Wisper Internet goes up to 400 Mbps, the slowest package only goes up to 100 Mbps, and the county-wide average maximum speed for St. Clair County customers is up to 354 Mbps.
Show all download speeds
- 84.5% up to 400.0 Mbps
- 15.5% up to 100.0 Mbps
Wisper Internet fixed wireless upload speeds
In St. Clair County download speeds tend to be faster than than upload speeds for Wisper Internet fixed wireless. Compared to other ISPs, Wisper Internet is below average where upload speeds are concerned, and the fastest compared to other St. Clair County fixed wireless providers. Wisper Internet 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 St. Clair County is up to 30 Mbps. Some customers have slower plan choices, which only go up to 20 Mbps. On average, Wisper Internet customers can get speeds up to 28 Mbps.
Show all upload speeds
- 84.5% up to 30.0 Mbps
- 15.5% up to 20.0 Mbps
T-Mobile Home Internet Fixed Wireless in St. Clair County, MO
T-Mobile Home Internet fixed wireless coverage
About 50.60%, or 4,698 people, have T-Mobile Home Internet fixed wireless internet available to them in the county. The company covers the entire St. Clair County area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of St. Clair County.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in St. Clair County. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are 2 different maximum speeds throughout St. Clair County. The fastest plan anyone in St. Clair County can order from T-Mobile Home Internet goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the county-wide average maximum speed for St. Clair County customers is up to 51 Mbps.
Show all download speeds
- 34.8% up to 100.0 Mbps
- 65.2% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In St. Clair County download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and average compared to other St. Clair County fixed wireless providers. T-Mobile Home Internet 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 St. Clair County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, T-Mobile Home Internet customers can get speeds up to 8.9 Mbps.
Show all upload speeds
- 34.8% up to 20.0 Mbps
- 65.2% up to 3.0 Mbps
Rocket Connect Fixed Wireless in St. Clair County, MO
Rocket Connect fixed wireless coverage
About 16.18%, or 1,502 people, have Rocket Connect fixed wireless internet available to them in the county. The company covers the northeast, central, north, east, south, and southeast St. Clair County area. Rocket Connect is an average-sized internet service provider internet service providers in the US, with internet service available in a small portion of St. Clair County.
Rocket Connect fixed wireless download speeds
Rocket Connect is below average when comparing download speeds to all other internet providers in St. Clair County. Versus other fixed wireless providers in the area, Rocket Connect fixed wireless is below average. There are no different maximum speeds throughout St. Clair County. The fastest plan anyone in St. Clair County can order from Rocket Connect goes up to 25 Mbps, and all St. Clair County customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
Rocket Connect fixed wireless upload speeds
In St. Clair County download speeds tend to be faster than than upload speeds for Rocket Connect fixed wireless. Compared to other ISPs, Rocket Connect is below average where upload speeds are concerned, and below average compared to other St. Clair County fixed wireless providers. Rocket Connect offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in St. Clair County is up to 4.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 4.0 Mbps
Verizon Fixed Wireless in St. Clair County, MO
Verizon fixed wireless coverage
About 10.23%, or 950 people, have Verizon fixed wireless internet available to them in the county. The company covers the central, east, west, southwest, and north St. Clair County area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of St. Clair County.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in St. Clair County. Versus other fixed wireless providers in the area, Verizon fixed wireless is above average. There are no different maximum speeds throughout St. Clair County. The fastest plan anyone in St. Clair County can order from Verizon goes up to 300 Mbps, and all St. Clair County customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In St. Clair County download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and above average compared to other St. Clair County fixed wireless providers. Verizon offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in St. Clair County is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
EarthLink Fixed Wireless in St. Clair County, MO
EarthLink fixed wireless coverage
About 7.84%, or 728 people, have EarthLink fixed wireless internet available to them in the county. The company covers the north, northeast, southeast, northwest, and southwest St. Clair County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of St. Clair County.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in St. Clair County. Versus other fixed wireless providers in the area, EarthLink fixed wireless is below average. There are 2 different maximum speeds throughout St. Clair County. The fastest plan anyone in St. Clair County can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the county-wide average maximum speed for St. Clair County customers is up to 27 Mbps.
Show all download speeds
- 2.3% up to 100.0 Mbps
- 97.7% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In St. Clair County download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and below average compared to other St. Clair County fixed wireless providers. EarthLink 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 St. Clair County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, EarthLink customers can get speeds up to 3.4 Mbps.
Show all upload speeds
- 2.3% up to 20.0 Mbps
- 97.7% up to 3.0 Mbps
AT&T Fixed Wireless in St. Clair County, MO
AT&T fixed wireless coverage
About 7.84%, or 728 people, have AT&T fixed wireless internet available to them in the county. The company covers the north, northeast, southeast, northwest, and southwest St. Clair County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of St. Clair County.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in St. Clair County. Versus other fixed wireless providers in the area, AT&T fixed wireless is below average. There are 2 different maximum speeds throughout St. Clair County. The fastest plan anyone in St. Clair County can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the county-wide average maximum speed for St. Clair County customers is up to 27 Mbps.
Show all download speeds
- 2.3% up to 100.0 Mbps
- 97.7% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In St. Clair County download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and below average compared to other St. Clair County fixed wireless providers. AT&T 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 St. Clair County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, AT&T customers can get speeds up to 3.4 Mbps.
Show all upload speeds
- 2.3% up to 20.0 Mbps
- 97.7% up to 3.0 Mbps
St. Clair County Internet by Area
This information is most helpful to those looking for homes or considering moving to St. Clair County or any of the areas nearby.
How does internet in St. Clair County compare to the rest of Missouri?
Internet speeds in St. Clair County are slower versus the average speeds in Missouri: 3,199 Mbps in Missouri versus 1,714 Mbps in the county. The state has similar internet availability compared to the county. Average internet coverage in Missouri is 98.57% versus 98.44% in St. Clair County.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around St. Clair County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does internet service 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
- Hickory County, MO: less internet coverage, slower speeds
- Camden County, MO: more internet coverage, slower speeds
- Maries County, MO: more internet coverage, slower speeds
- Phelps County, MO: less internet coverage, faster speeds
- Crawford County, MO: more internet coverage, slower speeds
- Washington County, MO: more internet coverage, slower speeds
- Ste. Genevieve County, MO: more internet coverage, slower speeds
- Harvey County, KS: more internet coverage, faster speeds
- Randolph County, IL: less internet coverage, faster speeds
- Reno County, KS: more internet coverage, faster speeds
Counties with Similar Populations
- Crockett County, TN: more internet coverage, slower speeds
- Custer County, MT: less internet coverage, slower speeds
- Custer County, ID: less internet coverage, slower speeds
- Custer County, CO: less internet coverage, slower speeds
- Cumberland County, VA: more internet coverage, slower speeds
- Cumberland County, KY: more internet coverage, slower speeds
- Cumberland County, IL: more internet coverage, faster speeds
- Culebra Municipio, PR: more internet coverage, slower speeds
- Culberson County, TX: less internet coverage, slower speeds
- Crowley County, CO: more internet coverage, slower speeds