In Williamson County there are 14 residential internet providers covering 99.71% of the county. The average home can get speeds up to 6,067 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.
Jump to Availability Maps
14 Internet Service Providers in Williamson 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 Williamson County are not shown.
Williamson 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 Williamson 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.
Please note some providers will take longer to load than others
Internet service is available in 99.71% of Williamson 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 Cable One. Now you can call companies in Williamson County with more confidence that they might be available.
How fast are internet speeds in Williamson County?
The map below shows maximum internet speeds by area in Williamson County.
Internet Speed Key
The average Williamson County home can get up to 6,067 Mbps on their internet plan. For most people, the fastest download speed in the county is 10,000 Mbps, which 20.87% 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 Williamson County.
Internet speeds tend to be faster in the southwest parts of Williamson County, and slower in the northeast areas of the county.
What type of internet should I choose in Williamson County?
The fastest internet for you may vary based on where in Williamson 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 93.99% of Williamson County homes.
- Cable is fastest for 4.36% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.19%.
- Satellite internet may be the only option for less than 1% of Williamson County homes.
Internet Market Health in Williamson County
Internet Competition Key
The map shows how competitive the Williamson 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 Williamson County based on what connections the average home has availabile:
- Average number of internet service providers to a home: 6.9 (very healthy)
- Average types of service (fiber, cable, DSL, etc): 3.0 (healthy)
- Average providers with broadband (25 Mbps+) speeds: 6.6 (very healthy)
Overall, competition is very healthy.
Williamson County internet customers have the ability to buy internet service from 1 to 12 different providers, depending on where they live. For different types of service, Williamson County homes have between 1 and 4 options. The type(s) of service available are fixed wireless, fiber, cable, and dsl, 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. Williamson County internet customers who want faster speeds have between 0 and 12 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, Williamson County is doing quite well.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in Williamson County, along with details on where in Williamson County and at what speeds.
Mediacom Cable in Williamson County, IL
Mediacom cable coverage
About 73.96%, or 49,664 people, have Mediacom cable internet available to them in the county. The company covers the entire Williamson County area. Mediacom is one of the largest internet service providers internet service providers in the US, with internet service available in much of Williamson County.
Mediacom cable download speeds
Mediacom is below average when comparing download speeds to all other internet providers in Williamson County. Versus other cable providers in the area, Mediacom cable is one of the fastest. There are no different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from Mediacom goes up to 1,000 Mbps, and all Williamson County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Mediacom cable upload speeds
In Williamson 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 Williamson County cable providers. Mediacom offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Williamson County is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Frontier Communications Fiber in Williamson County, IL
Frontier fiber coverage
About 48.70%, or 32,702 people, have Frontier fiber internet available to them in the county. The company covers the south, west, northwest, north, southeast, east, central, and southwest Williamson County area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in some of Williamson County.
Frontier Communications fiber download speeds
Frontier is above average when comparing download speeds to all other internet providers in Williamson County. Versus other fiber providers in the area, Frontier fiber is above average. There are 3 different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from Frontier goes up to 7,000 Mbps, the slowest package only goes up to 4,000 Mbps, and the county-wide average maximum speed for Williamson County customers is up to 5,271 Mbps.
Show all download speeds
- 13.6% up to 7,000.0 Mbps
- 86.4% up to 5,000.0 Mbps
- 0.0% up to 4,000.0 Mbps
Frontier Communications fiber upload speeds
In Williamson County 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 Williamson County fiber providers. Frontier offers 3 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 Williamson County is up to 7,000 Mbps. Some customers have slower plan choices, which only go up to 4,000 Mbps. On average, Frontier customers can get speeds up to 5,271 Mbps.
Show all upload speeds
- 13.6% up to 7,000.0 Mbps
- 86.4% up to 5,000.0 Mbps
- 0.0% up to 4,000.0 Mbps
Hamilton County Communications Fiber in Williamson County, IL
Hamilton County Communications fiber coverage
About 45.05%, or 30,250 people, have Hamilton County Communications fiber internet available to them in the county. The company covers the west, east, south, southeast, northeast, central, north, and northwest Williamson County area. Hamilton County Communications is a large internet service provider internet service providers in the US, with internet service available in some of Williamson County.
Hamilton County Communications fiber download speeds
Hamilton County Communications is below average when comparing download speeds to all other internet providers in Williamson County. Versus other fiber providers in the area, Hamilton County Communications fiber is one of the slowest. There are no different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from Hamilton County Communications goes up to 1,000 Mbps, and all Williamson County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Hamilton County Communications fiber upload speeds
In Williamson County 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 below average compared to other Williamson County fiber providers. Hamilton County Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Williamson County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Sparklight Fiber in Williamson County, IL
Sparklight fiber coverage
About 42.49%, or 28,531 people, have Sparklight fiber internet available to them in the county. The company covers the entire Williamson County area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in some of Williamson County.
Sparklight fiber download speeds
Sparklight is above average when comparing download speeds to all other internet providers in Williamson County. Versus other fiber providers in the area, Sparklight fiber is above average. There are no different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from Sparklight goes up to 7,000 Mbps, and all Williamson County customers can get this speed.
Show all download speeds
- 100.0% up to 7,000.0 Mbps
Sparklight fiber upload speeds
In Williamson County 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 Williamson County fiber providers. Sparklight offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Williamson County is up to 7,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 7,000.0 Mbps
Frontier Communications DSL in Williamson County, IL
Frontier DSL coverage
About 28.35%, or 19,037 people, have Frontier DSL internet available to them in the county. The company covers the entire Williamson County 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 Williamson County.
Frontier Communications DSL download speeds
Frontier is the slowest when comparing download speeds to all other internet providers in Williamson County. Versus other DSL providers in the area, Frontier DSL is the fastest. There are 5 different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from Frontier goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Williamson County customers is up to 21 Mbps.
Show all download speeds
- 3.0% up to 115.0 Mbps
- 4.3% up to 90.0 Mbps
- 4.2% up to 70.0 Mbps
- 5.2% up to 45.0 Mbps
- 83.3% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Williamson County download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is the slowest where upload speeds are concerned, and the fastest compared to other Williamson County DSL providers. Frontier 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 Williamson County is up to 7.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 1.5 Mbps.
Show all upload speeds
- 3.0% up to 7.0 Mbps
- 4.3% up to 5.0 Mbps
- 9.4% up to 3.0 Mbps
- 83.3% up to 1.0 Mbps
ProTek Communications Fiber in Williamson County, IL
ProTek Communications fiber coverage
About 20.87%, or 14,013 people, have ProTek Communications fiber internet available to them in the county. The company covers the south, southeast, north, southwest, central, east, and northeast Williamson County area. ProTek Communications is an average-sized internet service provider internet service providers in the US, with internet service available in a small portion of Williamson County.
ProTek Communications fiber download speeds
ProTek Communications is the fastest when comparing download speeds to all other internet providers in Williamson County. Versus other fiber providers in the area, ProTek Communications fiber is the fastest. There are no different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from ProTek Communications goes up to 10,000 Mbps, and all Williamson County customers can get this speed.
Show all download speeds
- 100.0% up to 10,000.0 Mbps
ProTek Communications fiber upload speeds
In Williamson County download speeds tend to be equal to than upload speeds for ProTek Communications fiber. Compared to other ISPs, ProTek Communications is the fastest where upload speeds are concerned, and the fastest compared to other Williamson County fiber providers. ProTek Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Williamson County is up to 10,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10,000.0 Mbps
Southern Illinois Wireless Internet Fiber in Williamson County, IL
4SIWI fiber coverage
About 7.32%, or 4,917 people, have 4SIWI fiber internet available to them in the county. The company covers the south, southeast, west, central, and east Williamson County area. 4SIWI is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Williamson County.
Southern Illinois Wireless Internet fiber download speeds
4SIWI is below average when comparing download speeds to all other internet providers in Williamson County. Versus other fiber providers in the area, 4SIWI fiber is one of the slowest. There are no different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from 4SIWI goes up to 1,000 Mbps, and all Williamson County 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 Williamson County 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 below average compared to other Williamson County fiber providers. 4SIWI offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Williamson County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Zito Media Cable in Williamson County, IL
Zito cable coverage
About 3.28%, or 2,202 people, have Zito cable internet available to them in the county. The company covers the southeast and south Williamson County area. Zito is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Williamson County.
Zito Media cable download speeds
Zito is below average when comparing download speeds to all other internet providers in Williamson County. Versus other cable providers in the area, Zito cable is one of the fastest. There are no different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from Zito goes up to 1,000 Mbps, and all Williamson County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Zito Media cable upload speeds
In Williamson County download speeds tend to be faster than than upload speeds for Zito cable. Compared to other ISPs, Zito is below average where upload speeds are concerned, and the slowest compared to other Williamson County cable providers. Zito offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Williamson County is up to 25 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 25.0 Mbps
Wisper Internet Fixed Wireless in Williamson County, IL
Wisper Internet fixed wireless coverage
About 85.14%, or 57,174 people, have Wisper Internet fixed wireless internet available to them in the county. The company covers the entire Williamson County area. Wisper Internet is a large internet service provider internet service providers in the US, with internet service available in most of Williamson County.
Wisper Internet fixed wireless download speeds
Wisper Internet is below average when comparing download speeds to all other internet providers in Williamson County. Versus other fixed wireless providers in the area, Wisper Internet fixed wireless is the fastest. There are 4 different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from Wisper Internet goes up to 400 Mbps, the slowest package only goes up to 25 Mbps, and the county-wide average maximum speed for Williamson County customers is up to 331 Mbps.
Show all download speeds
- 77.5% up to 400.0 Mbps
- 20.8% up to 100.0 Mbps
- 1.0% up to 50.0 Mbps
- 0.8% up to 25.0 Mbps
Wisper Internet fixed wireless upload speeds
In Williamson 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 above average compared to other Williamson County fixed wireless providers. Wisper Internet 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 Williamson County is up to 30 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, Wisper Internet customers can get speeds up to 27 Mbps.
Show all upload speeds
- 77.5% up to 30.0 Mbps
- 20.8% up to 20.0 Mbps
- 1.0% up to 5.0 Mbps
- 0.8% up to 3.0 Mbps
T-Mobile Home Internet Fixed Wireless in Williamson County, IL
T-Mobile Home Internet fixed wireless coverage
About 81.88%, or 54,985 people, have T-Mobile Home Internet fixed wireless internet available to them in the county. The company covers the entire Williamson 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 much of Williamson 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 Williamson 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 Williamson County. The fastest plan anyone in Williamson 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 Williamson County customers is up to 62 Mbps.
Show all download speeds
- 49.0% up to 100.0 Mbps
- 51.0% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Williamson 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 below average compared to other Williamson 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 Williamson 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 11 Mbps.
Show all upload speeds
- 49.0% up to 20.0 Mbps
- 51.0% up to 3.0 Mbps
EarthLink Fixed Wireless in Williamson County, IL
EarthLink fixed wireless coverage
About 66.49%, or 44,652 people, have EarthLink fixed wireless internet available to them in the county. The company covers the entire Williamson County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Williamson County.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Williamson County. Versus other fixed wireless providers in the area, EarthLink fixed wireless is one of the slowest. There are 2 different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson 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 Williamson County customers is up to 34 Mbps.
Show all download speeds
- 11.7% up to 100.0 Mbps
- 88.3% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In Williamson 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 one of the slowest compared to other Williamson 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 Williamson 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 5.0 Mbps.
Show all upload speeds
- 11.7% up to 20.0 Mbps
- 88.3% up to 3.0 Mbps
AT&T Fixed Wireless in Williamson County, IL
AT&T fixed wireless coverage
About 66.49%, or 44,652 people, have AT&T fixed wireless internet available to them in the county. The company covers the entire Williamson County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of Williamson County.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in Williamson County. Versus other fixed wireless providers in the area, AT&T fixed wireless is one of the slowest. There are 2 different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson 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 Williamson County customers is up to 34 Mbps.
Show all download speeds
- 11.7% up to 100.0 Mbps
- 88.3% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In Williamson 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 one of the slowest compared to other Williamson 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 Williamson 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 5.0 Mbps.
Show all upload speeds
- 11.7% up to 20.0 Mbps
- 88.3% up to 3.0 Mbps
Verizon Fixed Wireless in Williamson County, IL
Verizon fixed wireless coverage
About 47.21%, or 31,700 people, have Verizon fixed wireless internet available to them in the county. The company covers the west, north, northwest, northeast, southeast, central, east, and south Williamson County area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in some of Williamson County.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in Williamson County. Versus other fixed wireless providers in the area, Verizon fixed wireless is above average. There are no different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from Verizon goes up to 300 Mbps, and all Williamson County customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In Williamson 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 average compared to other Williamson County fixed wireless providers. Verizon offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Williamson County is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
Mediacom Fixed Wireless in Williamson County, IL
Mediacom fixed wireless coverage
About 36.06%, or 24,215 people, have Mediacom fixed wireless internet available to them in the county. The company covers the southeast, east, south, north, central, northeast, and west Williamson County area. Mediacom is one of the largest internet service providers internet service providers in the US, with internet service available in some of Williamson County.
Mediacom fixed wireless download speeds
Mediacom is below average when comparing download speeds to all other internet providers in Williamson County. Versus other fixed wireless providers in the area, Mediacom fixed wireless is below average. There are 3 different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from Mediacom goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the county-wide average maximum speed for Williamson County customers is up to 72 Mbps.
Show all download speeds
- 54.4% up to 100.0 Mbps
- 24.1% up to 50.0 Mbps
- 21.5% up to 25.0 Mbps
Mediacom fixed wireless upload speeds
In Williamson County download speeds tend to be faster than than upload speeds for Mediacom fixed wireless. Compared to other ISPs, Mediacom is below average where upload speeds are concerned, and below average compared to other Williamson County fixed wireless providers. Mediacom offers 3 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 Williamson County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, Mediacom customers can get speeds up to 13 Mbps.
Show all upload speeds
- 54.4% up to 20.0 Mbps
- 24.1% up to 5.0 Mbps
- 21.5% up to 3.0 Mbps
Southern Illinois Wireless Internet Fixed Wireless in Williamson County, IL
4SIWI fixed wireless coverage
About 28.58%, or 19,195 people, have 4SIWI fixed wireless internet available to them in the county. The company covers the east, southeast, south, northeast, central, north, west, and southwest Williamson County area. 4SIWI is a large internet service provider internet service providers in the US, with internet service available in a small portion of Williamson County.
Southern Illinois Wireless Internet fixed wireless download speeds
4SIWI is below average when comparing download speeds to all other internet providers in Williamson County. Versus other fixed wireless providers in the area, 4SIWI fixed wireless is below average. There are no different maximum speeds throughout Williamson County. The fastest plan anyone in Williamson County can order from 4SIWI goes up to 100 Mbps, and all Williamson County customers can get this speed.
Show all download speeds
- 100.0% up to 100.0 Mbps
Southern Illinois Wireless Internet fixed wireless upload speeds
In Williamson County download speeds tend to be faster than than upload speeds for 4SIWI fixed wireless. Compared to other ISPs, 4SIWI is below average where upload speeds are concerned, and average compared to other Williamson County fixed wireless providers. 4SIWI offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Williamson County is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
Williamson County Internet by Area
This information is most helpful to those looking for homes or considering moving to Williamson County or any of the areas nearby.
How does internet in Williamson County compare to the rest of Illinois?
Internet speeds in Williamson County are much faster versus the average speeds in Illinois: 2,791 Mbps in Illinois versus 6,067 Mbps in the county. The state has similar internet availability compared to the county. Average internet coverage in Illinois is 99.02% versus 99.71% in Williamson County.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around Williamson 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
- Jackson County, IL: less internet coverage, slower speeds
- Saline County, IL: less internet coverage, faster speeds
- Gallatin County, IL: less internet coverage, faster speeds
- Perry County, MO: less internet coverage, slower speeds
- Union County, KY: less internet coverage, slower speeds
- Henderson County, KY: more internet coverage, slower speeds
- St. Francois County, MO: less internet coverage, faster speeds
- Daviess County, KY: less internet coverage, slower speeds
- Hancock County, KY: less internet coverage, slower speeds
- Breckinridge County, KY: less internet coverage, slower speeds
Counties with Similar Populations
- Valencia County, NM: less internet coverage, slower speeds
- White County, AR: less internet coverage, slower speeds
- Pulaski County, KY: less internet coverage, slower speeds
- Otero County, NM: less internet coverage, slower speeds
- Otsego County, NY: less internet coverage, slower speeds
- Oxford County, ME: less internet coverage, slower speeds
- Pender County, NC: less internet coverage, slower speeds
- Pickaway County, OH: more internet coverage, slower speeds
- Pike County, KY: less internet coverage, slower speeds
- Pike County, PA: less internet coverage, slower speeds