10 Best Internet Providers in Carterville, IL
Find internet availability by address in Carterville, IL
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | Carterville ISP Report Card | Business Internet in Carterville
| Carterville ISP Report Card | A | |
| Download Speed for Most Households | 6,971 Mbps | |
| Number of Internet Service Providers | 10 | |
| Real Carterville Customer Ratings | 3 |
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.
Carterville has 10 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 city. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Carterville.
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Carterville has 10 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 city. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Carterville.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
Sparklight
Connection
Customer Rating
Fiber
Mediacom
Connection
Customer Rating
Cable
Fixed Wireless
Hamilton County Communications
Connection
Customer Rating
Fiber
Frontier
Connection
Customer Rating
Fiber
DSL
Above are the top 4 providers in Carterville, IL for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your city.
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 Carterville ratings may vary and are shown below.
Who is the Best Internet Provider in Carterville, IL?
Sparklight is the best internet provider in Carterville 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 Carterville, making it a solid recommendation among providers with reviews. Sparklight is an option for 98.73% of the city.
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The chart and table below show average customer ratings from customers in Carterville, Illinois, and customers throughout the country.
Top Rated Internet Providers in Carterville
Local, State, and National Ratings for all Carterville Internet Providers
| ISP / Tech Type | Carterville Overall | Illinois Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Sparklight | (2) | (5) | (73) | View Plans | ||
| Mediacom | (1) | (17) | (84) | 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 | ||
| 4SIWI | (0) | (0) | (0) | View Plans |
Based on 99 reviews from Illinois internet customers, Sparklight is the best internet service provider for Carterville 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 2.00 out of 5 stars and 91.6% coverage in Carterville.
At a national level, based on 2275 national reviews for any of the providers listed above, Hamilton County Communications is rated higher than any other provider, with a rating of 5.00 out of 5.
Which Providers are Available at my Home in Carterville?
a different provider.

Internet Availability Key
Speeds and coverage vary within the city, 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 Carterville?
According to unbiased feedback from real internet customers in the city, they reported being happiest with speeds provided by Mediacom. On the other hand, based on data provided by the internet providers to the FCC, Sparklight 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 Carterville
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| Frontier Communications | 7,000 Mbps | ||
| Sparklight | 7,000 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 | ||
| AT&T | 100 Mbps | ||
| EarthLink | 100 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| HughesNet | 25 Mbps |
Customer Ratings for Internet Provider Speeds in Carterville
| ISP / Tech Type | Carterville Speed | Illinois Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Mediacom | (1) | (17) | (84) | View Plans | ||
| Sparklight | (2) | (5) | (73) | 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 | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| HughesNet | (0) | (0) | (18) | View Plans | ||
| 4SIWI | (0) | (0) | (0) | View Plans |
Based on data reported by Carterville ISPs to the FCC, the fastest speeds in the city are available through Sparklight. The company offers speeds up to 7,000 Mbps in Carterville. Therefore, the average customer can get up to 7,000 Mbps if they're willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers in the city 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 Carterville?
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 Carterville customers with an average price rating of 1.00 out of 5.
The chart and graph below show how customers in Carterville, Illinois, and the United States rated the affordability of their internet service.
Rated Affordability in Carterville
| ISP / Tech Type | Carterville Affordability | Illinois Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Sparklight | (2) | (5) | (73) | View Plans | ||
| Mediacom | (1) | (17) | (84) | 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 | ||
| 4SIWI | (0) | (0) | (0) | View Plans |
Carterville 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 city 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 Carterville below, including the metrics used and how Carterville compares to the rest of Illinois and nation.
| Metric
(hover for details)
|
Carterville | Illinois | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in Carterville that have a Fiber internet connection available to their home. | 99.26% | 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. | 6,971 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 Carterville. | 7.1 | 7.1 | 6.8 |
| Average Household SizeA larger household size in a city 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. | 92% | 95% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 90% | 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. | 65% | 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. | 65% | 75% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Carterville ISP Report Card & Digital Connectivity Index
The ISP Report Card in Carterville is A, which is comparable to other cities. The local demand for broadband internet connectivity in Carterville is high with a score of 46 / 100 in our Digital Connectivity Index. This means that internet service providers operating in Carterville have done a average job meeting the needs of its residents.
The Carterville ISP Report Card evaluates the city on availability and speed metrics compared to other cities in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a city 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.
90% of Carterville households have an internet connection despite having 99.48% availability. 65% of households have fiber, cable, or DSL, 6% have satellite, 0% are still on dial-up, and 1% 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 65% of households have a broadband connection such as fiber, cable or DSL available to their home, 65% subscribe to it. A moderate amount of Carterville 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 Cities Compare to Carterville?
- ISP Report Card: A
- Digital Connectivity Index: 57 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 49 / 100
- ISP Report Card: A
- Digital Connectivity Index: 47 / 100
- ISP Report Card: B
- Digital Connectivity Index: 47 / 100
- ISP Report Card: A
- Digital Connectivity Index: 59 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 44 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 41 / 100
- ISP Report Card: C
- Digital Connectivity Index: 27 / 100
- ISP Report Card: A
- Digital Connectivity Index: 26 / 100
How Much Speed does a Carterville Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in Carterville is 2.3, which is smaller than the Illinois average of 2.6 and smaller than the national average of 2.7. Carterville's average household income is $72,140 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 higher incomes tend to indicate a fairly average device usage pattern.
Carterville also has 15% 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 Carterville has an average need for internet connectivity and speeds.
Compared to the rest of the country, Carterville households are about average when it comes to technological engagement. 92% of households have some sort of computing device, 83% have desktops or laptops in the home, and 89% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.
Which Fiber Internet Providers are Available in Carterville?
Sparklight Fiber in Carterville, IL
Sparklight offers Fiber service to 98.7% of Carterville homes. Across the city, Sparklight Fiber is the only type of service available from the company, with speeds up to 7,000 Mbps
Hamilton County Communications Fiber in Carterville, IL
Hamilton County Communications offers Fiber service to 51.8% of Carterville homes. Across the city, Hamilton County Communications Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
Frontier Fiber in Carterville, IL
Frontier Communications offers Fiber service to 34.9% of Carterville homes. Across the city, Frontier Fiber has speeds up to 6,782 Mbps, with speeds from 5,000 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 Carterville from Frontier in terms of customer satisfaction.
4SIWI Fiber in Carterville, IL
Southern Illinois Wireless Internet offers Fiber service to 1.3% of Carterville homes. Across the city, 4SIWI Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
Which Cable Internet Providers are Available in Carterville?
Mediacom Cable in Carterville, IL
Mediacom offers Cable service to 91.0% of Carterville homes. Across the city, Mediacom Cable has speeds up to 1,000 Mbps
Which DSL Internet Providers are Available in Carterville?
Frontier DSL in Carterville, IL
Frontier Communications offers DSL service to 32.9% of Carterville homes. Across the city, Frontier DSL has speeds up to 12 Mbps, with speeds from 10 Mpbs up to 70 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 3.0, with an average of 1.1 Mbps throughout the city. Frontier DSL is rated lower than other types of internet service available in Carterville from Frontier in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in Carterville?
T-Mobile Home Internet Fixed Wireless in Carterville, IL
T-Mobile Home Internet offers Fixed Wireless service to 95.1% of Carterville homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 64 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 12 Mbps throughout the city.
EarthLink Fixed Wireless in Carterville, IL
EarthLink offers Fixed Wireless service to 78.4% of Carterville homes. Across the city, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 35 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 5.3 Mbps throughout the city.
AT&T Fixed Wireless in Carterville, IL
AT&T offers Fixed Wireless service to 78.4% of Carterville homes. Across the city, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 35 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 5.3 Mbps throughout the city.
Verizon Fixed Wireless in Carterville, IL
Verizon offers Fixed Wireless service to 71.2% of Carterville homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 300 Mbps
Wisper Internet Fixed Wireless in Carterville, IL
Wisper Internet offers Fixed Wireless service to 63.8% of Carterville homes. Across the city, Wisper Internet Fixed Wireless is the only type of service available from the company, with speeds up to 229 Mbps, with speeds from 100 Mpbs up to 400 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 20 and as high as 30, with an average of 24 Mbps throughout the city.
Mediacom Fixed Wireless in Carterville, IL
Mediacom offers Fixed Wireless service to 6.0% of Carterville homes. Across the city, Mediacom Fixed Wireless has speeds up to 59 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 9.9 Mbps throughout the city.
Which ISP Should You Choose in Carterville?
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 Carterville is Sparklight.
- The fastest internet provider should be Sparklight. 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 Carterville is Sparklight.
- Sparklight, Viasat, and HughesNet has the broadest coverage in Carterville, 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 Carterville compare to other cities with a similar population?
To see how Carterville 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 Carterville's A ISP Report Card and 46 / 100 Digital Connectivity Index.
- ISP Report Card: C
- Digital Connectivity Index: 35 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 83 / 100
- ISP Report Card: A
- Digital Connectivity Index: 77 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 37 / 100
- ISP Report Card: C
- Digital Connectivity Index: 36 / 100
- ISP Report Card: B
- Digital Connectivity Index: 44 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 94 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 71 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 51 / 100
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