In McHenry County there are 3 residential DSL providers covering 89.50% of the county. The average home can get speeds up to 66 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.
This page contains all DSL internet providers in McHenry County, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in McHenry County, IL please click below.
McHenry County, IL Availability Maps
DSL Internet Service Providers in McHenry 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 McHenry County are not shown.
McHenry 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
Where in McHenry County is DSL internet available?
DSL Internet Availability Key
DSL is available in 89.50% of McHenry County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in McHenry County above to see who has service at your home.
How fast is DSL internet in McHenry County?
The map below shows maximum DSL internet speeds by area in McHenry County.
DSL Internet Speed Key
The average McHenry County home can get up to 66 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 115 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 12.57% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in McHenry County.
DSL internet speeds tend to be faster in the south parts of McHenry County, and slower in the northwest areas of the county.
Is DSL the fastest internet I can get in McHenry County?
The fastest internet for you may vary based on where in McHenry County you live. In general, cable competes most often with DSL in the county.
- Fiber is the fastest internet type for 28.62% of McHenry County homes.
- Cable is fastest for 67.93% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 3.19%.
- Satellite internet may be the only option for less than 1% of McHenry County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in McHenry County, along with details on where in McHenry County and at what speeds.
EarthLink DSL in McHenry County, IL
EarthLink DSL coverage
About 84.85%, or 263,221 people, have EarthLink DSL internet available to them in the county. The company covers the entire McHenry County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of McHenry County.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in McHenry County. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 5 different maximum speeds throughout McHenry County. The fastest plan anyone in McHenry County can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for McHenry County customers is up to 68 Mbps.
Show all download speeds
- 43.2% up to 100.0 Mbps
- 13.3% up to 75.0 Mbps
- 22.5% up to 50.0 Mbps
- 10.2% up to 25.0 Mbps
- 10.8% up to 10.0 Mbps
EarthLink DSL upload speeds
In McHenry County download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the fastest compared to other McHenry County DSL providers. EarthLink 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 McHenry County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, EarthLink customers can get speeds up to 14 Mbps.
Show all upload speeds
- 56.5% up to 20.0 Mbps
- 22.5% up to 10.0 Mbps
- 10.2% up to 5.0 Mbps
- 10.8% up to 1.0 Mbps
AT&T DSL in McHenry County, IL
AT&T DSL coverage
About 84.85%, or 263,221 people, have AT&T DSL internet available to them in the county. The company covers the entire McHenry 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 McHenry County.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in McHenry County. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 5 different maximum speeds throughout McHenry County. The fastest plan anyone in McHenry County can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for McHenry County customers is up to 68 Mbps.
Show all download speeds
- 43.2% up to 100.0 Mbps
- 13.3% up to 75.0 Mbps
- 22.5% up to 50.0 Mbps
- 10.2% up to 25.0 Mbps
- 10.8% up to 10.0 Mbps
AT&T DSL upload speeds
In McHenry County download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and one of the fastest compared to other McHenry County DSL providers. AT&T 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 McHenry County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, AT&T customers can get speeds up to 14 Mbps.
Show all upload speeds
- 56.5% up to 20.0 Mbps
- 22.5% up to 10.0 Mbps
- 10.2% up to 5.0 Mbps
- 10.8% up to 1.0 Mbps
Frontier Communications DSL in McHenry County, IL
Frontier DSL coverage
About 4.92%, or 15,257 people, have Frontier DSL internet available to them in the county. The company covers the northeast, north, northwest, and west McHenry County area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of McHenry County.
Frontier Communications DSL download speeds
Frontier is the slowest when comparing download speeds to all other internet providers in McHenry County. Versus other DSL providers in the area, Frontier DSL is the slowest. There are 5 different maximum speeds throughout McHenry County. The fastest plan anyone in McHenry 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 McHenry County customers is up to 28 Mbps.
Show all download speeds
- 6.5% up to 115.0 Mbps
- 7.7% up to 90.0 Mbps
- 5.2% up to 70.0 Mbps
- 6.3% up to 45.0 Mbps
- 74.4% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In McHenry 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 slowest compared to other McHenry 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 McHenry 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 1.9 Mbps.
Show all upload speeds
- 6.5% up to 7.0 Mbps
- 7.7% up to 5.0 Mbps
- 11.5% up to 3.0 Mbps
- 74.4% up to 1.0 Mbps
McHenry County DSL by Area
This information is most helpful to those looking for homes or considering moving to McHenry County or any of the areas nearby.
How does DSL internet in McHenry County compare to the rest of Illinois?
DSL internet speeds in McHenry County are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 66 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Illinois is 0.00% versus 89.50% in McHenry County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around McHenry County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does DSL internet 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
- Lake County, IL: more DSL coverage, faster speeds
- Boone County, IL: less DSL coverage, slower speeds
- Winnebago County, IL: less DSL coverage, slower speeds
- Stephenson County, IL: less DSL coverage, slower speeds
- Jackson County, IA: less DSL coverage, slower speeds
- Van Buren County, MI: less DSL coverage, slower speeds
- Kalamazoo County, MI: less DSL coverage, faster speeds
- Jones County, IA: less DSL coverage, slower speeds
- Calhoun County, MI: less DSL coverage, slower speeds
- Jackson County, MI: less DSL coverage, slower speeds
Counties with Similar Populations
- York County, ME: less DSL coverage, slower speeds
- Yolo County, CA: less DSL coverage, faster speeds
- Yavapai County, AZ: less DSL coverage, slower speeds
- Baldwin County, AL: less DSL coverage, slower speeds
- Berkeley County, SC: less DSL coverage, faster speeds
- Whatcom County, WA: less DSL coverage, faster speeds
- Okaloosa County, FL: more DSL coverage, slower speeds
- Montgomery County, TN: less DSL coverage, slower speeds
- Nueces County, TX: less DSL coverage, slower speeds
- Northampton County, PA: less DSL coverage, slower speeds