In Calhoun County there are 5 residential DSL providers covering 89.77% of the county. The average home can get speeds up to 92 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 Calhoun County, SC.
To see availability maps for all providers including fiber, cable, DSL, and more in Calhoun County, SC please click below.
Calhoun County, SC Availability Maps
DSL Internet Service Providers in Calhoun 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 Calhoun County are not shown.
Calhoun 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 Calhoun County is DSL internet available?
DSL Internet Availability Key
DSL is available in 89.77% of Calhoun County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Windstream. Call one of the companies with service in Calhoun County above to see who has service at your home.
How fast is DSL internet in Calhoun County?
The map below shows maximum DSL internet speeds by area in Calhoun County.
DSL Internet Speed Key
The average Calhoun County home can get up to 92 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 300 Mbps, which 1.37% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 18.71% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Calhoun County.
DSL internet speeds tend to be faster in the north parts of Calhoun County, and slower in the northeast areas of the county.
Is DSL the fastest internet I can get in Calhoun County?
The fastest internet for you may vary based on where in Calhoun County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 97.46% of Calhoun County homes.
- Cable is fastest for 1.46% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for 1.08% of Calhoun County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Calhoun County, along with details on where in Calhoun County and at what speeds.
Windstream DSL in Calhoun County, SC
Windstream DSL coverage
About 72.98%, or 10,304 people, have Windstream DSL internet available to them in the county. The company covers the entire Calhoun County area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in much of Calhoun County.
Windstream DSL download speeds
Windstream is below average when comparing download speeds to all other internet providers in Calhoun County. Versus other DSL providers in the area, Windstream DSL is the fastest. There are 6 different maximum speeds throughout Calhoun County. The fastest plan anyone in Calhoun County can order from Windstream goes up to 300 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Calhoun County customers is up to 98 Mbps.
Show all download speeds
- 1.9% up to 300.0 Mbps
- 20.9% up to 200.0 Mbps
- 43.4% up to 100.0 Mbps
- 10.1% up to 50.0 Mbps
- 1.4% up to 25.0 Mbps
- 22.4% up to 10.0 Mbps
Windstream DSL upload speeds
In Calhoun County download speeds tend to be faster than than upload speeds for Windstream DSL. Compared to other ISPs, Windstream is below average where upload speeds are concerned, and the fastest compared to other Calhoun County DSL providers. Windstream offers 12 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 Calhoun County is up to 83 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Windstream customers can get speeds up to 28 Mbps.
Show all upload speeds
- 2.3% up to 83.0 Mbps
- 0.2% up to 69.0 Mbps
- 35.5% up to 52.0 Mbps
- 9.2% up to 32.0 Mbps
- 12.3% up to 23.0 Mbps
- 0.2% up to 20.0 Mbps
- 6.2% up to 17.0 Mbps
- 0.2% up to 15.0 Mbps
- 2.1% up to 12.0 Mbps
- 2.3% up to 10.0 Mbps
- 7.1% up to 3.0 Mbps
- 22.4% up to 1.0 Mbps
AT&T DSL in Calhoun County, SC
AT&T DSL coverage
About 16.77%, or 2,368 people, have AT&T DSL internet available to them in the county. The company covers the northwest, southwest, west, and south Calhoun County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Calhoun County.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Calhoun County. Versus other DSL providers in the area, AT&T DSL is average. There are 5 different maximum speeds throughout Calhoun County. The fastest plan anyone in Calhoun 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 Calhoun County customers is up to 61 Mbps.
Show all download speeds
- 35.9% up to 100.0 Mbps
- 15.7% up to 75.0 Mbps
- 13.6% up to 50.0 Mbps
- 20.3% up to 25.0 Mbps
- 14.6% up to 10.0 Mbps
AT&T DSL upload speeds
In Calhoun 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 average compared to other Calhoun 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 Calhoun 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 13 Mbps.
Show all upload speeds
- 51.6% up to 20.0 Mbps
- 13.6% up to 10.0 Mbps
- 20.3% up to 5.0 Mbps
- 14.6% up to 1.0 Mbps
EarthLink DSL in Calhoun County, SC
EarthLink DSL coverage
About 16.77%, or 2,368 people, have EarthLink DSL internet available to them in the county. The company covers the northwest, southwest, west, and south Calhoun County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Calhoun County.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Calhoun County. Versus other DSL providers in the area, EarthLink DSL is average. There are 5 different maximum speeds throughout Calhoun County. The fastest plan anyone in Calhoun 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 Calhoun County customers is up to 61 Mbps.
Show all download speeds
- 35.9% up to 100.0 Mbps
- 15.7% up to 75.0 Mbps
- 13.6% up to 50.0 Mbps
- 20.3% up to 25.0 Mbps
- 14.6% up to 10.0 Mbps
EarthLink DSL upload speeds
In Calhoun 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 average compared to other Calhoun 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 Calhoun 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 13 Mbps.
Show all upload speeds
- 51.6% up to 20.0 Mbps
- 13.6% up to 10.0 Mbps
- 20.3% up to 5.0 Mbps
- 14.6% up to 1.0 Mbps
Frontier Communications DSL in Calhoun County, SC
Frontier DSL coverage
About 5.13%, or 725 people, have Frontier DSL internet available to them in the county. The company covers the southeast Calhoun 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 Calhoun County.
Frontier Communications DSL download speeds
Frontier is below average when comparing download speeds to all other internet providers in Calhoun County. Versus other DSL providers in the area, Frontier DSL is average. There are 5 different maximum speeds throughout Calhoun County. The fastest plan anyone in Calhoun 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 Calhoun County customers is up to 45 Mbps.
Show all download speeds
- 15.3% up to 115.0 Mbps
- 4.8% up to 90.0 Mbps
- 4.3% up to 70.0 Mbps
- 36.1% up to 45.0 Mbps
- 39.4% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Calhoun County download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is below average where upload speeds are concerned, and below average compared to other Calhoun 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 Calhoun 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 2.9 Mbps.
Show all upload speeds
- 15.3% up to 7.0 Mbps
- 4.8% up to 5.0 Mbps
- 40.4% up to 3.0 Mbps
- 39.4% up to 1.0 Mbps
COMPORIUM DSL in Calhoun County, SC
COMPORIUM DSL coverage
About 1.49%, or 210 people, have COMPORIUM DSL internet available to them in the county. The company covers the northwest Calhoun County area. COMPORIUM is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Calhoun County.
COMPORIUM DSL download speeds
COMPORIUM is the slowest when comparing download speeds to all other internet providers in Calhoun County. Versus other DSL providers in the area, COMPORIUM DSL is the slowest. There are no different maximum speeds throughout Calhoun County. The fastest plan anyone in Calhoun County can order from COMPORIUM goes up to 10 Mbps, and all Calhoun County customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
COMPORIUM DSL upload speeds
In Calhoun County download speeds tend to be faster than than upload speeds for COMPORIUM DSL. Compared to other ISPs, COMPORIUM is the slowest where upload speeds are concerned, and the slowest compared to other Calhoun County DSL providers. COMPORIUM offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Calhoun County is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Calhoun County DSL by Area
This information is most helpful to those looking for homes or considering moving to Calhoun County or any of the areas nearby.
How does DSL internet in Calhoun County compare to the rest of South Carolina?
DSL internet speeds in Calhoun County are much faster versus the average speeds in South Carolina: 0.00 Mbps in South Carolina versus 92 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in South Carolina is 0.00% versus 89.77% in Calhoun County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Calhoun 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
- Clarendon County, SC: less DSL coverage, slower speeds
- Aiken County, SC: less DSL coverage, slower speeds
- Williamsburg County, SC: less DSL coverage, slower speeds
- Edgefield County, SC: less DSL coverage, slower speeds
- Columbia County, GA: less DSL coverage, slower speeds
- Horry County, SC: less DSL coverage, slower speeds
- Taliaferro County, GA: less DSL coverage, slower speeds
- Greene County, GA: less DSL coverage, slower speeds
- Morgan County, GA: less DSL coverage, slower speeds
- Walton County, GA: more DSL coverage, slower speeds
Counties with Similar Populations
- Yankton County, SD: less DSL coverage, slower speeds
- Aransas County, TX: less DSL coverage, slower speeds
- Plaquemines Parish, LA: less DSL coverage, slower speeds
- Luquillo Municipio, PR: more DSL coverage, slower speeds
- Macon County, MO: less DSL coverage, slower speeds
- Madison County, IA: less DSL coverage, slower speeds
- Madison County, NC: less DSL coverage, slower speeds
- Marengo County, AL: less DSL coverage, slower speeds
- Mariposa County, CA: less DSL coverage, slower speeds
- Martin County, KY: less DSL coverage, slower speeds