8 Best Internet Providers in Crystal Lake, IL
Find internet availability by address in Crystal Lake, IL
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | Crystal Lake ISP Report Card | Business Internet in Crystal Lake
| Crystal Lake ISP Report Card | B- | |
| Download Speed for Most Households | 2,958 Mbps | |
| Number of Internet Service Providers | 8 | |
| Real Crystal Lake Customer Ratings | 8 |
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.
Crystal Lake has 8 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, DSL, and Fixed Wireless 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 Crystal Lake.
▼
Crystal Lake has 8 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, DSL, and Fixed Wireless 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 Crystal Lake.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
XFINITY
Connection
Customer Rating
Cable
EarthLink
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
AT&T
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
i3 Broadband
Connection
Customer Rating
Fiber
Above are the top 4 providers in Crystal Lake, 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 Crystal Lake ratings may vary and are shown below.
Who is the Best Internet Provider in Crystal Lake, IL?
XFINITY from Comcast is the best internet provider in Crystal Lake based on Illinois customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, XFINITY from Comcast had the best reviews at the local, state, and national levels versus all available providers in Crystal Lake, making it a solid recommendation among providers with reviews. XFINITY from Comcast is an option for 99.75% of the city.
Click here to get XFINITY from Comcast
or call 1-877-244-3013
The chart and table below show average customer ratings from customers in Crystal Lake, Illinois, and customers throughout the country.
Top Rated Internet Providers in Crystal Lake
Local, State, and National Ratings for all Crystal Lake Internet Providers
| ISP / Tech Type | Crystal Lake Overall | Illinois Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| XFINITY | (6) | (210) | (2164) | View Plans | ||
| i3 Broadband | (1) | (16) | (23) | View Plans | ||
| AT&T | (1) | (47) | (924) | View Plans | ||
| Verizon | (0) | (10) | (723) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (284) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| HughesNet | (0) | (0) | (18) | View Plans | ||
| e-vergent | (0) | (0) | (1) | View Plans | ||
| Fox Valley | (0) | (0) | (0) | View Plans |
Based on 298 reviews from Illinois internet customers, XFINITY from Comcast is the best internet service provider for Crystal Lake residents. XFINITY from Comcast was rated at an average of 3.17 out of 5 in our report for overall customer satisfaction. i3 Broadband wins for second-place in Illinois, with 3.00 out of 5 stars and 14.7% coverage in Crystal Lake.
At a national level, based on 4160 national reviews for any of the providers listed above, e-vergent is rated higher than any other provider, with a rating of 2.00 out of 5.
Which Providers are Available at my Home in Crystal Lake?
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 Crystal Lake?
According to unbiased feedback from real internet customers in the city, they reported being happiest with speeds provided by XFINITY from Comcast. On the other hand, based on data provided by the internet providers to the FCC, i3 Broadband 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 Crystal Lake
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| i3 Broadband | 8,000 Mbps | ||
| AT&T | 5,000 Mbps | ||
| EarthLink | 5,000 Mbps | ||
| XFINITY from Comcast | 2,000 Mbps | ||
| Verizon | 300 Mbps | ||
| e-vergent | 100 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| Fox Valley Internet | 50 Mbps | ||
| HughesNet | 25 Mbps |
Customer Ratings for Internet Provider Speeds in Crystal Lake
| ISP / Tech Type | Crystal Lake Speed | Illinois Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| XFINITY | (6) | (210) | (2164) | View Plans | ||
| i3 Broadband | (1) | (16) | (23) | View Plans | ||
| AT&T | (1) | (47) | (924) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (284) | View Plans | ||
| Verizon | (0) | (10) | (723) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| e-vergent | (0) | (0) | (1) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| HughesNet | (0) | (0) | (18) | View Plans | ||
| Fox Valley | (0) | (0) | (0) | View Plans |
Based on data reported by Crystal Lake ISPs to the FCC, the fastest speeds in the city are available through i3 Broadband. The company offers speeds up to 8,000 Mbps in Crystal Lake. Therefore, the average customer can get up to 8,000 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 XFINITY from Comcast. This indicates XFINITY reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in Crystal Lake?
Illinois customers rate XFINITY from Comcast 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.
XFINITY from Comcast received a local rating of 3.00 out of 5, which is much lower than the average across all internet providers in the country. i3 Broadband is rated in second place for affordability by the company’s Crystal Lake customers with an average price rating of 3.00 out of 5.
The chart and graph below show how customers in Crystal Lake, Illinois, and the United States rated the affordability of their internet service.
Rated Affordability in Crystal Lake
| ISP / Tech Type | Crystal Lake Affordability | Illinois Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| i3 Broadband | (1) | (16) | (23) | View Plans | ||
| AT&T | (1) | (47) | (924) | View Plans | ||
| XFINITY | (6) | (210) | (2164) | View Plans | ||
| Verizon | (0) | (10) | (723) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (284) | View Plans | ||
| Viasat | (0) | (1) | (11) | View Plans | ||
| e-vergent | (0) | (0) | (1) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| HughesNet | (0) | (0) | (18) | View Plans | ||
| Fox Valley | (0) | (0) | (0) | View Plans |
Crystal Lake 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 Crystal Lake below, including the metrics used and how Crystal Lake compares to the rest of Illinois and nation.
| Metric
(hover for details)
|
Crystal Lake | Illinois | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in Crystal Lake that have a Fiber internet connection available to their home. | 20.21% | 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. | 2,958 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 Crystal Lake. | 6.6 | 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. | 2.7 | 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. | 16% | 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. | 98% | 95% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 96% | 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. | 87% | 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. | 87% | 75% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Crystal Lake ISP Report Card & Digital Connectivity Index
The ISP Report Card in Crystal Lake is B-, which is much better than other cities. The local demand for broadband internet connectivity in Crystal Lake is high with a score of 87 / 100 in our Digital Connectivity Index. This means that internet service providers operating in Crystal Lake have done a great job meeting the needs of its residents.
The Crystal Lake 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.
96% of Crystal Lake households have an internet connection despite having 99.92% availability. 87% of households have fiber, cable, or DSL, 4% 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 87% of households have a broadband connection such as fiber, cable or DSL available to their home, 87% subscribe to it. A very large amount of Crystal Lake 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 Crystal Lake?
- ISP Report Card: B
- Digital Connectivity Index: 93 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 92 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 87 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 82 / 100
- ISP Report Card: C
- Digital Connectivity Index: 82 / 100
- ISP Report Card: C
- Digital Connectivity Index: 78 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 92 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 87 / 100
- ISP Report Card: C
- Digital Connectivity Index: 90 / 100
How Much Speed does a Crystal Lake Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in Crystal Lake is 2.7, which is larger than the Illinois average of 2.6 and larger than the national average of 2.7. Crystal Lake's average household income is $113,008 which is much higher than the Illinois average of $93,298 and much higher than the national average of $90,606. Homes with more people living in them and with higher incomes tend to indicate more devices being used more often.
Crystal Lake also has 17% of its population enrolled in school between the 6th grade and college level, this is higher than the Illinois average of 16%. Additionally, 16% of residents work from home, which is higher 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 Crystal Lake has a very high need for internet connectivity and speeds.
Compared to the rest of the country, Crystal Lake households are much more technology-engaged. 98% of households have some sort of computing device, 91% have desktops or laptops in the home, and 95% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.
Which Fiber Internet Providers are Available in Crystal Lake?
i3 Broadband Fiber in Crystal Lake, IL
i3 Broadband offers Fiber service to 14.7% of Crystal Lake homes. Across the city, i3 Broadband Fiber is the only type of service available from the company, with speeds up to 8,000 Mbps
EarthLink Fiber in Crystal Lake, IL
EarthLink offers Fiber service to 7.6% of Crystal Lake homes. Across the city, EarthLink Fiber has speeds up to 2,881 Mbps, with speeds from 1,000 Mpbs up to 5,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for EarthLink Fiber. EarthLink Fiber is rated about the same as other types of internet service available in Crystal Lake from EarthLink in terms of customer satisfaction.
AT&T Fiber in Crystal Lake, IL
AT&T offers Fiber service to 7.6% of Crystal Lake homes. Across the city, AT&T Fiber has speeds up to 2,881 Mbps, with speeds from 1,000 Mpbs up to 5,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for AT&T Fiber. AT&T Fiber is rated higher than other types of internet service available in Crystal Lake from AT&T in terms of customer satisfaction.
Which Cable Internet Providers are Available in Crystal Lake?
XFINITY Cable in Crystal Lake, IL
XFINITY from Comcast offers Cable service to 99.8% of Crystal Lake homes. Across the city, XFINITY Cable is the only type of service available from the company, with speeds up to 2,000 Mbps
Which DSL Internet Providers are Available in Crystal Lake?
EarthLink DSL in Crystal Lake, IL
EarthLink offers DSL service to 97.2% of Crystal Lake homes. Across the city, EarthLink DSL has speeds up to 78 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 16 Mbps throughout the city. EarthLink DSL is rated the same as other types of internet service available in Crystal Lake from EarthLink in terms of customer satisfaction.
AT&T DSL in Crystal Lake, IL
AT&T offers DSL service to 97.2% of Crystal Lake homes. Across the city, AT&T DSL has speeds up to 78 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 16 Mbps throughout the city. AT&T DSL is rated about the same as other types of internet service available in Crystal Lake from AT&T in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in Crystal Lake?
T-Mobile Home Internet Fixed Wireless in Crystal Lake, IL
T-Mobile Home Internet offers Fixed Wireless service to 97.0% of Crystal Lake homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 78 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 15 Mbps throughout the city.
EarthLink Fixed Wireless in Crystal Lake, IL
EarthLink offers Fixed Wireless service to 81.0% of Crystal Lake homes. Across the city, EarthLink Fixed Wireless has speeds up to 32 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 4.6 Mbps throughout the city.
AT&T Fixed Wireless in Crystal Lake, IL
AT&T offers Fixed Wireless service to 81.0% of Crystal Lake homes. Across the city, AT&T Fixed Wireless has speeds up to 32 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 4.6 Mbps throughout the city.
Verizon Fixed Wireless in Crystal Lake, IL
Verizon offers Fixed Wireless service to 55.9% of Crystal Lake homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 300 Mbps
e-vergent Fixed Wireless in Crystal Lake, IL
e-vergent offers Fixed Wireless service to 16.8% of Crystal Lake homes. Across the city, e-vergent Fixed Wireless is the only type of service available from the company, with speeds up to 50 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 10, with an average of 6.5 Mbps throughout the city.
Fox Valley Fixed Wireless in Crystal Lake, IL
Fox Valley Internet offers Fixed Wireless service to 4.6% of Crystal Lake homes. Across the city, Fox Valley Fixed Wireless is the only type of service available from the company, with speeds up to 33 Mbps, with speeds from 25 Mpbs up to 50 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 5.0 and as high as 10, with an average of 7.6 Mbps throughout the city.
Which ISP Should You Choose in Crystal Lake?
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 Crystal Lake is XFINITY.
- The fastest internet provider should be i3 Broadband. Considering speed for the money and reliability in speeds, XFINITY from Comcast may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Crystal Lake is XFINITY.
- XFINITY from Comcast, HughesNet, and Viasat has the broadest coverage in Crystal Lake, 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 Crystal Lake compare to other cities with a similar population?
To see how Crystal Lake 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 Crystal Lake's B- ISP Report Card and 87 / 100 Digital Connectivity Index.
- ISP Report Card: B
- Digital Connectivity Index: 82 / 100
- ISP Report Card: C
- Digital Connectivity Index: 80 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 72 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 88 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 92 / 100
- ISP Report Card: B
- Digital Connectivity Index: 41 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 75 / 100
- ISP Report Card: A
- Digital Connectivity Index: 46 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 85 / 100
(1)