12 Best Internet Providers in Williamson County, IL
Find internet availability by address in Williamson County, IL
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | Williamson County ISP Report Card | Business Internet in Williamson County
| Williamson County ISP Report Card | A- | |
| Download Speed for Most Households | 6,067 Mbps | |
| Number of Internet Service Providers | 12 | |
| Real Williamson County Customer Ratings | 5 |
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
Williamson County has 12 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, Fixed Wireless, and DSL internet are available in the county. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Williamson County.
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Williamson County has 12 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, Fixed Wireless, and DSL internet are available in the county. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Williamson County.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
Mediacom
Connection
Customer Rating
Cable
Fixed Wireless
Frontier
Connection
Customer Rating
Fiber
DSL
Hamilton County Communications
Connection
Customer Rating
Fiber
Sparklight
Connection
Customer Rating
Fiber
Above are the top 4 providers in Williamson County, IL for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your county.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local Williamson County ratings may vary and are shown below.
Who is the Best Internet Provider in Williamson County, IL?
Sparklight is the best internet provider in Williamson County based on Illinois customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, Sparklight had the best reviews at the local, state, and national levels versus all available providers in Williamson County, making it a solid recommendation among providers with reviews. Sparklight is an option for 42.49% of the county.
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The chart and table below show average customer ratings from customers in Williamson County, Illinois, and customers throughout the country.
Top Rated Internet Providers in Williamson County
Local, State, and National Ratings for all Williamson County Internet Providers
| ISP / Tech Type | Williamson County Overall | Illinois Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Sparklight | (2) | (5) | (73) | View Plans | ||
| Mediacom | (2) | (17) | (84) | View Plans | ||
| ProTek Communications | (1) | (1) | (1) | View Plans | ||
| Verizon | (0) | (10) | (723) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (284) | View Plans | ||
| AT&T | (0) | (47) | (924) | View Plans | ||
| Frontier | (0) | (4) | (143) | View Plans | ||
| Wisper Internet | (0) | (1) | (2) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| Hamilton County Communications | (0) | (0) | (1) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| HughesNet | (0) | (0) | (18) | View Plans | ||
| Zito | (0) | (0) | (16) | View Plans | ||
| 4SIWI | (0) | (0) | (0) | View Plans |
Based on 100 reviews from Illinois internet customers, Sparklight is the best internet service provider for Williamson County residents. Sparklight was rated at an average of 3.40 out of 5 in our report for overall customer satisfaction. Mediacom wins for second-place in Illinois, with 3.50 out of 5 stars and 83.2% coverage in Williamson County.
At a national level, based on 2292 national reviews for any of the providers listed above, Zito Media is rated higher than any other provider, with a rating of 2.03 out of 5.
Which Providers are Available at my Home in Williamson County?
a different provider.

Internet Availability Key
Speeds and coverage vary within the county, and sometimes even from block to block. The map shows speeds per provider and where each provider is available.
Who is the Fastest Internet Provider in Williamson County?
According to unbiased feedback from real internet customers in the county, they reported being happiest with speeds provided by Mediacom. On the other hand, based on data provided by the internet providers to the FCC, ProTek Communications should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in Williamson County
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| ProTek Communications | 10,000 Mbps | ||
| Sparklight | 7,000 Mbps | ||
| Frontier Communications | 7,000 Mbps | ||
| Zito Media | 1,000 Mbps | ||
| Southern Illinois Wireless Internet | 1,000 Mbps | ||
| Hamilton County Communications | 1,000 Mbps | ||
| Mediacom | 1,000 Mbps | ||
| Wisper Internet | 400 Mbps | ||
| Verizon | 300 Mbps | ||
| EarthLink | 100 Mbps | ||
| AT&T | 100 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| HughesNet | 25 Mbps |
Customer Ratings for Internet Provider Speeds in Williamson County
| ISP / Tech Type | Williamson County Speed | Illinois Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Mediacom | (2) | (17) | (84) | View Plans | ||
| Sparklight | (2) | (5) | (73) | View Plans | ||
| ProTek Communications | (1) | (1) | (1) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (284) | View Plans | ||
| Verizon | (0) | (10) | (723) | View Plans | ||
| AT&T | (0) | (47) | (924) | View Plans | ||
| Frontier | (0) | (4) | (143) | View Plans | ||
| Wisper Internet | (0) | (1) | (2) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| Hamilton County Communications | (0) | (0) | (1) | View Plans | ||
| Zito | (0) | (0) | (16) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| HughesNet | (0) | (0) | (18) | View Plans | ||
| 4SIWI | (0) | (0) | (0) | View Plans |
Based on data reported by Williamson County ISPs to the FCC, the fastest speeds in the county are available through ProTek Communications. The company offers speeds up to 10,000 Mbps in Williamson County. Therefore, the average customer can get up to 10,000 Mbps if they're willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers in the county rated their satisfaction with internet speed highest with Mediacom. This indicates Mediacom reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in Williamson County?
Illinois customers rate Sparklight as the cheapest internet service provider in state. Data comes from customers in the state rating their satisfaction with pricing. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
Sparklight received a local rating of 3.50 out of 5, which is much lower than the average across all internet providers in the country. Mediacom is rated in second place for affordability by the company’s Williamson County customers with an average price rating of 3.00 out of 5.
The chart and graph below show how customers in Williamson County, Illinois, and the United States rated the affordability of their internet service.
Rated Affordability in Williamson County
| ISP / Tech Type | Williamson County Affordability | Illinois Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Sparklight | (2) | (5) | (73) | View Plans | ||
| Mediacom | (2) | (17) | (84) | View Plans | ||
| ProTek Communications | (1) | (1) | (1) | View Plans | ||
| Frontier | (0) | (4) | (143) | View Plans | ||
| Verizon | (0) | (10) | (723) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (284) | View Plans | ||
| AT&T | (0) | (47) | (924) | View Plans | ||
| Wisper Internet | (0) | (1) | (2) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| Hamilton County Communications | (0) | (0) | (1) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| HughesNet | (0) | (0) | (18) | View Plans | ||
| Zito | (0) | (0) | (16) | View Plans | ||
| 4SIWI | (0) | (0) | (0) | View Plans |
Williamson County Internet Health Assessment
ISP Reports evaluates the technological infrastructure across the United States. This includes assessing a grade for ISP providers and infrastructure in the county and setting an index number for the digital connectivity of its residents. You can view the ISP Report Card and the Digital Connectivity Index for Williamson County below, including the metrics used and how Williamson County compares to the rest of Illinois and nation.
| Metric
(hover for details)
|
Williamson County | Illinois | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in Williamson County that have a Fiber internet connection available to their home. | 93.99% | 44.05% | 67.25% | ||
| Average Download SpeedThe maximum download speed most households can get on average. This is measured by availability in a block group and weighted by the population in that area. | 6,067 Mbps | 2,791 Mbps | 3,293 Mbps | ||
| Provider CountThe number of providers available for most people. This is a weighted average by block rather than a total for Williamson County. | 6.9 | 7.1 | 6.8 |
| Average Household SizeA larger household size in a county indicates that there will be a greater need for bandwidth due to simultaneous usage, multiple devices, and network congestion. | 2.3 | 2.6 | 2.7 | ||
| Work From Home PercentA higher percent of the population working from home indicates bandwidth requirements being more widely needed rather than consolidated to commercial portions of the city. | 9% | 14% | 14% | ||
| Households with DevicesA higher percentage of households with computing devices in the home indicates a higher level of infrastructure needed to support those households. | 93% | 95% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 88% | 90% | 90% | ||
| Households with BroadbandA higher percentage of households with a broadband connection (defined as speeds above 25 Mbps) indicates heavier usage needs within these households. | 56% | 74% | 75% | ||
| Broadband Usage vs. AvailabilityThis measures what percentage of households who have a broadband connection to their home actually have an active subscription to that service. | 56% | 75% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Williamson County ISP Report Card & Digital Connectivity Index
The ISP Report Card in Williamson County is A-, which is worse than other counties. The local demand for broadband internet connectivity in Williamson County is high with a score of 38 / 100 in our Digital Connectivity Index. This means that internet service providers operating in Williamson County have done a poor job meeting the needs of its residents.
The Williamson County ISP Report Card evaluates the county on availability and speed metrics compared to other counties in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a county needs. Please see our ISP Report Card along with the Digital Connectivity Index above to evaluate how well the connectivity demand is met by the existing infrastructure.
88% of Williamson County households have an internet connection despite having 99.71% availability. 56% of households have fiber, cable, or DSL, 10% have satellite, 0% are still on dial-up, and 2% of households have internet but don’t pay for a subscription because it’s subsidized by the Affordable Connectivity Program.
As you can see in the table above, while 56% of households have a broadband connection such as fiber, cable or DSL available to their home, 56% subscribe to it. A low number of Williamson County residents are taking advantage of the available internet infrastructure.
For more details, please visit our ISP Report Card and Digital Connectivity Index pages.
How do Neighboring Counties Compare to Williamson County?
- ISP Report Card: B
- Digital Connectivity Index: 36 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 24 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 17 / 100
- ISP Report Card: C
- Digital Connectivity Index: 31 / 100
- ISP Report Card: C
- Digital Connectivity Index: 44 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 47 / 100
- ISP Report Card: A
- Digital Connectivity Index: 46 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 53 / 100
- ISP Report Card: B
- Digital Connectivity Index: 30 / 100
How Much Speed does a Williamson County Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in Williamson County is 2.3, which is smaller than the Illinois average of 2.6 and smaller than the national average of 2.7. Williamson County's average household income is $69,702 which is lower than the Illinois average of $93,298 and about average for the national average of $90,606. Homes with fewer people living in them and with lower incomes tend to indicate fewer devices being used less often.
Williamson County also has 13% of its population enrolled in school between the 6th grade and college level, this is lower than the Illinois average of 16%. Additionally, 9% of residents work from home, which is lower than the 14% of residents in Illinois who work from home. This and other factors you can see above show us that the community of Williamson County has a low need for internet connectivity and speeds.
Compared to the rest of the country, Williamson County households are about average when it comes to technological engagement. 93% of households have some sort of computing device, 74% have desktops or laptops in the home, and 90% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.
Which Fiber Internet Providers are Available in Williamson County?
Frontier Fiber in Williamson County, IL
Frontier Communications offers Fiber service to 48.7% of Williamson County homes. Across the county, Frontier Fiber has speeds up to 5,271 Mbps, with speeds from 4,000 Mpbs up to 7,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for Frontier Fiber. Frontier Fiber is rated higher than other types of internet service available in Williamson County from Frontier in terms of customer satisfaction.
Hamilton County Communications Fiber in Williamson County, IL
Hamilton County Communications offers Fiber service to 45.0% of Williamson County homes. Across the county, Hamilton County Communications Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
Sparklight Fiber in Williamson County, IL
Sparklight offers Fiber service to 42.5% of Williamson County homes. Across the county, Sparklight Fiber is the only type of service available from the company, with speeds up to 7,000 Mbps
ProTek Communications Fiber in Williamson County, IL
ProTek Communications offers Fiber service to 20.9% of Williamson County homes. Across the county, ProTek Communications Fiber is the only type of service available from the company, with speeds up to 10,000 Mbps
4SIWI Fiber in Williamson County, IL
Southern Illinois Wireless Internet offers Fiber service to 7.3% of Williamson County homes. Across the county, 4SIWI Fiber has speeds up to 1,000 Mbps
Which Cable Internet Providers are Available in Williamson County?
Mediacom Cable in Williamson County, IL
Mediacom offers Cable service to 74.0% of Williamson County homes. Across the county, Mediacom Cable has speeds up to 1,000 Mbps
Zito Cable in Williamson County, IL
Zito Media offers Cable service to 3.3% of Williamson County homes. Across the county, Zito Cable is the only type of service available from the company, with speeds up to 1,000 Mbps
Which DSL Internet Providers are Available in Williamson County?
Frontier DSL in Williamson County, IL
Frontier Communications offers DSL service to 28.3% of Williamson County homes. Across the county, Frontier DSL has speeds up to 21 Mbps, with speeds from 10 Mpbs up to 115 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 7.0, with an average of 1.5 Mbps throughout the county. Frontier DSL is rated lower than other types of internet service available in Williamson County from Frontier in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in Williamson County?
Wisper Internet Fixed Wireless in Williamson County, IL
Wisper Internet offers Fixed Wireless service to 85.1% of Williamson County homes. Across the county, Wisper Internet Fixed Wireless is the only type of service available from the company, with speeds up to 331 Mbps, with speeds from 25 Mpbs up to 400 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 30, with an average of 27 Mbps throughout the county.
T-Mobile Home Internet Fixed Wireless in Williamson County, IL
T-Mobile Home Internet offers Fixed Wireless service to 81.9% of Williamson County homes. Across the county, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 62 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 11 Mbps throughout the county.
EarthLink Fixed Wireless in Williamson County, IL
EarthLink offers Fixed Wireless service to 66.5% of Williamson County homes. Across the county, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 34 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 5.0 Mbps throughout the county.
AT&T Fixed Wireless in Williamson County, IL
AT&T offers Fixed Wireless service to 66.5% of Williamson County homes. Across the county, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 34 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 5.0 Mbps throughout the county.
Verizon Fixed Wireless in Williamson County, IL
Verizon offers Fixed Wireless service to 47.2% of Williamson County homes. Across the county, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 300 Mbps
Mediacom Fixed Wireless in Williamson County, IL
Mediacom offers Fixed Wireless service to 36.1% of Williamson County homes. Across the county, Mediacom Fixed Wireless has speeds up to 72 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 13 Mbps throughout the county.
4SIWI Fixed Wireless in Williamson County, IL
Southern Illinois Wireless Internet offers Fixed Wireless service to 28.6% of Williamson County homes. Across the county, 4SIWI Fixed Wireless has speeds up to 100 Mbps
Which ISP Should You Choose in Williamson County?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in Williamson County is Sparklight.
- The fastest internet provider should be ProTek Communications. Considering speed for the money and reliability in speeds, Mediacom may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Williamson County is Sparklight.
- HughesNet, Wisper Internet, and Viasat has the broadest coverage in Williamson County, and is most likely to cover your home. To find out exactly what's available at your home, please use our address search tool.
How does Williamson County compare to other cities with a similar population?
To see how Williamson County stacks up on the national level, it's useful to look at some other cities with similarly sized populations. Below you can see a list of these cities and how they compare to Williamson County's A- ISP Report Card and 38 / 100 Digital Connectivity Index.
- ISP Report Card: C
- Digital Connectivity Index: 48 / 100
- ISP Report Card: B
- Digital Connectivity Index: 39 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 46 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 56 / 100
- ISP Report Card: D+
- Digital Connectivity Index: 51 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 54 / 100
- ISP Report Card: B
- Digital Connectivity Index: 66 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 60 / 100
- ISP Report Card: D+
- Digital Connectivity Index: 38 / 100
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