In South Barrington there are 2 residential DSL providers covering 90.45% of the city. The average home can get speeds up to 83 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 South Barrington, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in South Barrington, IL please click below.
South Barrington, IL Availability Maps
DSL Internet Service Providers in South Barrington
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 South Barrington are not shown.
South Barrington 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 South Barrington is DSL internet available?
DSL Internet Availability Key
DSL is available in 90.45% of South Barrington. 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 South Barrington above to see who has service at your home.
How fast is DSL internet in South Barrington?
The map below shows maximum DSL internet speeds by area in South Barrington.
DSL Internet Speed Key
The average South Barrington home can get up to 83 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 100 Mbps, which 58.91% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, less than 1% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in South Barrington.
DSL internet speeds tend to be faster in the south parts of South Barrington, and slower in the southwest areas of the city.
Is DSL the fastest internet I can get in South Barrington?
The fastest internet for you may vary based on where in South Barrington you live. In general, cable competes most often with DSL in the city.
- Fiber is the fastest internet type for 4.69% of South Barrington homes.
- Cable is fastest for 95.21% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of South Barrington homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in South Barrington, along with details on where in South Barrington and at what speeds.
AT&T DSL in South Barrington, IL
AT&T DSL coverage
About 90.45%, or 4,592 people, have AT&T DSL internet available to them in the city. The company covers the entire South Barrington area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Barrington.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in South Barrington. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 5 different maximum speeds throughout South Barrington. The fastest plan anyone in South Barrington can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for South Barrington customers is up to 83 Mbps.
Show all download speeds
- 65.1% up to 100.0 Mbps
- 10.5% up to 75.0 Mbps
- 14.5% up to 50.0 Mbps
- 9.0% up to 25.0 Mbps
- 0.8% up to 10.0 Mbps
AT&T DSL upload speeds
In South Barrington 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 South Barrington DSL providers. AT&T offers 4 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in South Barrington 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 17 Mbps.
Show all upload speeds
- 75.7% up to 20.0 Mbps
- 14.5% up to 10.0 Mbps
- 9.0% up to 5.0 Mbps
- 0.8% up to 1.0 Mbps
EarthLink DSL in South Barrington, IL
EarthLink DSL coverage
About 90.45%, or 4,592 people, have EarthLink DSL internet available to them in the city. The company covers the entire South Barrington area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of South Barrington.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in South Barrington. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 5 different maximum speeds throughout South Barrington. The fastest plan anyone in South Barrington can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for South Barrington customers is up to 83 Mbps.
Show all download speeds
- 65.1% up to 100.0 Mbps
- 10.5% up to 75.0 Mbps
- 14.5% up to 50.0 Mbps
- 9.0% up to 25.0 Mbps
- 0.8% up to 10.0 Mbps
EarthLink DSL upload speeds
In South Barrington 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 South Barrington DSL providers. EarthLink offers 4 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in South Barrington 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 17 Mbps.
Show all upload speeds
- 75.7% up to 20.0 Mbps
- 14.5% up to 10.0 Mbps
- 9.0% up to 5.0 Mbps
- 0.8% up to 1.0 Mbps
South Barrington DSL by Area
This information is most helpful to those looking for homes or considering moving to South Barrington or any of the areas nearby.
How does DSL internet in South Barrington compare to the rest of Illinois?
DSL internet speeds in South Barrington are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 83 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Illinois is 0.00% versus 90.45% in South Barrington.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around South Barrington 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 cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Hoffman Estates, IL: more DSL coverage, slower speeds
- Inverness, IL: more DSL coverage, slower speeds
- Streamwood, IL: more DSL coverage, faster speeds
- Barrington Hills, IL: less DSL coverage, slower speeds
- Barrington, IL: more DSL coverage, slower speeds
- East Dundee, IL: more DSL coverage, faster speeds
- Schaumburg, IL: more DSL coverage, faster speeds
- Carpentersville, IL: less DSL coverage, slower speeds
- Deer Park, IL: less DSL coverage, slower speeds
- Palatine, IL: less DSL coverage, slower speeds
Cities with Similar Populations
- Wind Gap, PA: less DSL coverage, slower speeds
- Whiteville, TN: less DSL coverage, slower speeds
- Yaurel, PR: less DSL coverage, slower speeds
- Williamstown, KY: less DSL coverage, slower speeds
- Dundee, OR: less DSL coverage, slower speeds
- Dupo, IL: more DSL coverage, faster speeds
- Durham, CA: less DSL coverage, slower speeds
- Duryea, PA: less DSL coverage, slower speeds
- Dwight, IL: less DSL coverage, slower speeds
- Eagar, AZ: less DSL coverage, slower speeds