Best Internet Providers in Crystal Lake, IL
All 8 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Crystal Lake, IL
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.
Ranks compare Crystal Lake with the 749 US small cities (50,000 to 99,999 people), the tiers of our fastest-cities rankings.
The Best Internet in Crystal Lake, IL at a Glance
Crystal Lake Internet 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
Providers with less than 1% coverage in this city are excluded from the list. To see if one of these providers is available at your home, please use the address search above.
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?
i3 Broadband is the highest-rated internet provider in Crystal Lake based on 307 Illinois customer reviews, and T-Mobile Home Internet has the highest rating nationwide. The provider information above and the information immediately below can help you decide. Compare provider ratings and review counts above.
Which Providers are Available at my Home in Crystal Lake?
Coverage changes block by block. Pick a provider and a technology to see where its service reaches: the darker the area, the larger the share of homes it covers. For your exact address, use the address search above.
Coverage map for each provider in Crystal Lake
- i3 Broadband - fiber coverage map
- XFINITY - cable coverage map
- AT&T - fiber coverage map
- EarthLink - fiber coverage map
- Verizon - fixed wireless coverage map
- AT&T - dsl coverage map
- EarthLink - dsl coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
- e-vergent - fixed wireless coverage map
- Fox Valley - fixed wireless coverage map
How Crystal Lake Compares to Places Its Size
Crystal Lake's report card score is tied 601st of 749 and its connectivity index is tied 109th of 749.
| Measure | Crystal Lake | Rank among US small cities (50,000 to 99,999 people) | McHenry County | Illinois | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 35.1% | 675th of 749 | 44.7% | 47.6% | 71.5% | Aloha, OR and Shawnee, KS (100.0%) |
| Average top speed | 3,846 Mbps | 325th of 749 | 4,192 Mbps | 3,187 Mbps | 3,486 Mbps | Layton, UT (9,808 Mbps) |
| Providers at a typical address | 7.3 | Tied 405th of 749 | 7.7 | 7.3 | 7.1 | Guaynabo, PR (14.3) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.8 | Tied 230th of 749 | 2.7 | 2.6 | 2.7 | Pacoima, CA and Spring Valley, NY (4.3) |
| Workers who work from home | 17% | Tied 262nd of 749 | 16% | 16% | 15% | Danville, CA and Potomac, MD and 2 more (39%) |
| Homes with a computer, tablet or phone | 98% | Tied 115th of 749 | 98% | 95% | 96% | Atascocita, TX and Eastvale, CA and 8 more (100%) |
| Homes with internet | 97% | Tied 31st of 749 | 96% | 91% | 91% | Centreville, VA and Danville, CA and 2 more (99%) |
| Homes on fiber, cable or DSL | 87% | Tied 91st of 749 | 82% | 75% | 76% | Flower Mound, TX and Johns Creek, GA and 1 more (93%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 90% | Tied 152nd of 749 | 88% | 81% | 81% | Sammamish, WA (99%) |
| Median household income | $116,578 | 199th of 749 | $113,476 | $95,616 | $93,246 | Potomac, MD ($227,882) |
| Residents in school (6th grade to college) | 18% | Tied 144th of 749 | 15% | 16% | 16% | East Lansing, MI (58%) |
Fiber reaches 35.1% of homes in Crystal Lake, against 44.7% across McHenry County and 47.6% across Illinois. Households in Crystal Lake are larger than the US average (2.8 people against 2.7); 17% of workers work from home (US 15%); and the median household income is $116,578 (US $93,246).
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Fiber, 5G, Cable and DSL Internet in Crystal Lake
Which Fiber Internet Providers are Available in Crystal Lake?
i3 Broadband Fiber in Crystal Lake, IL
Availability:
29.1%
Customer Rating:
(27)
Avg. Download Speed
8,000 Mbps
i3 Broadband offers Fiber service to 29.1% 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
Availability:
8.4%
Customer Rating:
(6)
Avg. Download Speed
3,098 Mbps
EarthLink offers Fiber service to 8.4% of Crystal Lake homes. Across the city, EarthLink Fiber has speeds up to 3,098 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
Availability:
8.4%
Customer Rating:
(542)
Avg. Download Speed
3,098 Mbps
AT&T offers Fiber service to 8.4% of Crystal Lake homes. Across the city, AT&T Fiber has speeds up to 3,098 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 lower than 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
Availability:
97.5%
Customer Rating:
(342)
Avg. Download Speed
73 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 97.5% 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 73 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 14 Mbps throughout the city.
Verizon Fixed Wireless in Crystal Lake, IL
Availability:
94.5%
Customer Rating:
(362)
Avg. Download Speed
200 Mbps
Verizon offers Fixed Wireless service to 94.5% of Crystal Lake homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 200 Mbps, with speeds from 25 Mpbs up to 300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 6.0 and as high as 20, with an average of 15 Mbps throughout the city.
EarthLink Fixed Wireless in Crystal Lake, IL
Availability:
88.9%
Customer Rating:
(4)
Avg. Download Speed
34 Mbps
EarthLink offers Fixed Wireless service to 88.9% of Crystal Lake homes. Across the city, EarthLink Fixed Wireless has 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 city.
AT&T Fixed Wireless in Crystal Lake, IL
Availability:
88.9%
Customer Rating:
(205)
Avg. Download Speed
34 Mbps
AT&T offers Fixed Wireless service to 88.9% of Crystal Lake homes. Across the city, AT&T Fixed Wireless has 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 city.
e-vergent Fixed Wireless in Crystal Lake, IL
Availability:
17.1%
Customer Rating:
(1)
Avg. Download Speed
49 Mbps
e-vergent offers Fixed Wireless service to 17.1% 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 49 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
Availability:
4.7%
Customer Rating:
(0)
Avg. Download Speed
34 Mbps
Fox Valley Internet offers Fixed Wireless service to 4.7% 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 34 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 7.9 Mbps throughout the city.
Which Cable Internet Providers are Available in Crystal Lake?
XFINITY Cable in Crystal Lake, IL
Availability:
99.8%
Customer Rating:
(2077)
Avg. Download Speed
2,000 Mbps
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
Availability:
97.2%
Customer Rating:
(5)
Avg. Download Speed
77 Mbps
EarthLink offers DSL service to 97.2% of Crystal Lake homes. Across the city, EarthLink DSL has speeds up to 77 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 higher than other types of internet service available in Crystal Lake from EarthLink in terms of customer satisfaction.
AT&T DSL in Crystal Lake, IL
Availability:
97.2%
Customer Rating:
(304)
Avg. Download Speed
77 Mbps
AT&T offers DSL service to 97.2% of Crystal Lake homes. Across the city, AT&T DSL has speeds up to 77 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.
Internet in Crystal Lake by Neighborhood and ZIP Code
Crystal Lake has 1 neighborhood and 2 ZIP codes with their own pages. Each row links to that place’s page.
Neighborhoods in Crystal Lake
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Coventry | 4,159 | 29.4% | 3,763 Mbps | 6.6 | B- | 84/100 |
ZIP codes in Crystal Lake
How Crystal Lake Compares to Nearby Places
The 10 places nearest to Crystal Lake that have their own pages are all within 7 miles. Among them, Lake in the Hills has the most homes with fiber (86.0%) and Fox River Grove the fewest (0.0%); Crystal Lake has 35.1%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Crystal Lake (this page) | 51,113 | 35.1% | 3,846 Mbps | 7.3 | B- | 87/100 |
| Algonquin | 31,176 | 36.0% | 3,907 Mbps | 8.1 | B | 87/100 |
| Lake in the Hills | 30,500 | 86.0% | 7,131 Mbps | 9.1 | A- | 91/100 |
| Huntley | 28,047 | 59.8% | 4,921 Mbps | 8.4 | B+ | 78/100 |
| Cary | 23,452 | 4.0% | 2,118 Mbps | 6.4 | C+ | 90/100 |
| Fox River Grove | 5,535 | 0.0% | 1,999 Mbps | 6.7 | C | 88/100 |
| Lakewood | 5,227 | 65.9% | 5,071 Mbps | 8.5 | B+ | 91/100 |
| Oakwood Hills | 2,313 | 0.0% | 2,000 Mbps | 6.9 | C | 83/100 |
| Prairie Grove | 2,274 | 23.8% | 2,705 Mbps | 7.3 | B- | 86/100 |
| Trout Valley | 656 | 0.0% | 2,000 Mbps | 6.1 | C | 80/100 |
| Ridgefield | 502 | 0.0% | 1,805 Mbps | 5.8 | C- | 80/100 |
Who is the Fastest Internet Provider in Crystal Lake?
Based on both FCC data and unbiased customer ratings, the fastest internet in the city comes from i3 Broadband.
Data Reported to FCC by ISPs: Average Maximum Available in Crystal Lake
| i3 Broadband | 8,000 |
|---|---|
| AT&T | 5,000 |
| EarthLink | 5,000 |
| XFINITY from Comcast | 2,000 |
| Verizon | 300 |
| Viasat | 100 |
| T-Mobile Home Internet | 100 |
| e-vergent | 100 |
| Fox Valley Internet | 50 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Crystal Lake. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Crystal Lake Internet Providers
Based on 307 reviews from Illinois internet customers, i3 Broadband is the best internet service provider for Crystal Lake residents. i3 Broadband was rated at an average of 4.16 out of 5 in our report for overall customer satisfaction. T-Mobile Home Internet wins for second-place in Illinois, with 3.94 out of 5 stars and 97.5% coverage in Crystal Lake.
At a national level, based on 4633 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.02 out of 5.
Local, State, and National Ratings for all Crystal Lake Internet Providers
The table below shows average customer ratings from customers in Crystal Lake, Illinois, and customers throughout the country.
| ISP / Tech Type | Crystal Lake Overall | Illinois Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| i3 Broadband | (0) | (19) | (29) | View Plans | ||
| T-Mobile Home Internet | (0) | (18) | (342) | View Plans | ||
| Verizon | (0) | (9) | (816) | View Plans | ||
| AT&T | (0) | (51) | (1051) | View Plans | ||
| Viasat | (0) |  (1) |  (12) | View Plans | ||
| XFINITY | (1) | (210) | (2379) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) |  (25) | View Plans | ||
| e-vergent | (0) | (0) | (1) | View Plans | ||
| Fox Valley | (0) | (0) | (0) | View Plans |
Customer Ratings for Internet Provider Speeds in Crystal Lake
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 rated their satisfaction with internet speed highest with i3 Broadband. This indicates i3 Broadband reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Crystal Lake Speed | Illinois Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| i3 Broadband | (0) |  (19) | (29) | View Plans | ||
| T-Mobile Home Internet | (0) | (18) | (342) | View Plans | ||
| Verizon | (0) | (9) | (816) | View Plans | ||
| XFINITY | (1) | (210) | (2379) | View Plans | ||
| AT&T | (0) | (51) | (1051) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| e-vergent | (0) | (0) | (1) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| Fox Valley | (0) | (0) | (0) | View Plans |
Who is the Cheapest Internet Provider in Crystal Lake?
Of the providers in Crystal Lake, customers rate i3 Broadband the best for price. Data comes from customers rating their satisfaction with pricing: in Crystal Lake where enough of them have reviewed a provider, otherwise across Illinois or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
i3 Broadband is rated 4.05 out of 5 for price, which is higher than the average across all internet providers in the country. Verizon is rated second for affordability, with an average price rating of 4.00 out of 5.
The table below shows 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 | (0) | (19) | (29) | View Plans | ||
| Verizon | (0) | (9) | (816) | View Plans | ||
| T-Mobile Home Internet | (0) | (18) | (342) | View Plans | ||
| AT&T | (0) | (51) | (1051) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| XFINITY | (1) | (210) | (2379) | View Plans | ||
| e-vergent | (0) | (0) | (1) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| Fox Valley | (0) | (0) | (0) | View Plans |
Customer Reviews for Internet Service Providers in Illinois
Customer Reviews
ISPReports User
Pavlov Media Fiber
November 13, 2026 
Carol
McDonough Telephone Cooperative Fiber
October 26, 2026 Fast, friendly service. Appreciate being able to get quick help by calling. Actually get a person on the phone
ISPReports User
McDonough Telephone Cooperative Fiber
October 09, 2026 61438
McDonough Telephone Cooperative Fiber
October 08, 2026 MTC has been a great internet for my family. Rather it be gaming system speed, or just watching tv in multiple rooms, The internet seems to run smoothly. I very seldom have internet interruption. When we do it is usually due to storm taking out a pole, or upgrading the system. It usually has been a short time when it does happen.
ISPReports User
MTC Technologies Fiber
October 08, 2026 Rate your provider
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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 i3 Broadband.
- The fastest internet provider should be i3 Broadband. Considering speed for the money and reliability in speeds, i3 Broadband may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Crystal Lake is i3 Broadband.
- Viasat, HughesNet, EarthLink, and AT&T has the broadest coverage in Crystal Lake, available to 99.8% of homes, and is most likely to cover your home. To find out exactly what’s available at your home, please use our address search tool.