In Dorchester County there are 2 residential DSL providers covering 67.61% of the county. The average home can get speeds up to 72 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 Dorchester County, SC.
To see availability maps for all providers including fiber, cable, DSL, and more in Dorchester County, SC please click below.
Dorchester County, SC Availability Maps
DSL Internet Service Providers in Dorchester 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 Dorchester County are not shown.
Dorchester 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 Dorchester County is DSL internet available?
DSL Internet Availability Key
DSL is available in 67.61% of Dorchester 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 Dorchester County above to see who has service at your home.
How fast is DSL internet in Dorchester County?
The map below shows maximum DSL internet speeds by area in Dorchester County.
DSL Internet Speed Key
The average Dorchester County home can get up to 72 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 100 Mbps, which 35.25% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 7.92% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Dorchester County.
DSL internet speeds tend to be faster in the south parts of Dorchester County, and slower in the northwest areas of the county.
Is DSL the fastest internet I can get in Dorchester County?
The fastest internet for you may vary based on where in Dorchester County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 69.08% of Dorchester County homes.
- Cable is fastest for 29.52% 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 less than 1% of Dorchester County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Dorchester County, along with details on where in Dorchester County and at what speeds.
AT&T DSL in Dorchester County, SC
AT&T DSL coverage
About 67.60%, or 109,208 people, have AT&T DSL internet available to them in the county. The company covers the entire Dorchester 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 Dorchester County.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Dorchester County. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 5 different maximum speeds throughout Dorchester County. The fastest plan anyone in Dorchester 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 Dorchester County customers is up to 72 Mbps.
Show all download speeds
- 52.1% up to 100.0 Mbps
- 9.5% up to 75.0 Mbps
- 18.5% up to 50.0 Mbps
- 8.1% up to 25.0 Mbps
- 11.7% up to 10.0 Mbps
AT&T DSL upload speeds
In Dorchester 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 Dorchester 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 Dorchester 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 15 Mbps.
Show all upload speeds
- 61.7% up to 20.0 Mbps
- 18.5% up to 10.0 Mbps
- 8.1% up to 5.0 Mbps
- 11.7% up to 1.0 Mbps
EarthLink DSL in Dorchester County, SC
EarthLink DSL coverage
About 67.60%, or 109,208 people, have EarthLink DSL internet available to them in the county. The company covers the entire Dorchester County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Dorchester County.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Dorchester County. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 5 different maximum speeds throughout Dorchester County. The fastest plan anyone in Dorchester 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 Dorchester County customers is up to 72 Mbps.
Show all download speeds
- 52.1% up to 100.0 Mbps
- 9.5% up to 75.0 Mbps
- 18.5% up to 50.0 Mbps
- 8.1% up to 25.0 Mbps
- 11.7% up to 10.0 Mbps
EarthLink DSL upload speeds
In Dorchester 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 Dorchester 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 Dorchester 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 15 Mbps.
Show all upload speeds
- 61.7% up to 20.0 Mbps
- 18.5% up to 10.0 Mbps
- 8.1% up to 5.0 Mbps
- 11.7% up to 1.0 Mbps
Dorchester County DSL by Area
This information is most helpful to those looking for homes or considering moving to Dorchester County or any of the areas nearby.
How does DSL internet in Dorchester County compare to the rest of South Carolina?
DSL internet speeds in Dorchester County are much faster versus the average speeds in South Carolina: 0.00 Mbps in South Carolina versus 72 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in South Carolina is 0.00% versus 67.61% in Dorchester County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Dorchester 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
- Berkeley County, SC: less DSL coverage, faster speeds
- Charleston County, SC: more DSL coverage, slower speeds
- Colleton County, SC: less DSL coverage, slower speeds
- Hampton County, SC: more DSL coverage, slower speeds
- Allendale County, SC: less DSL coverage, slower speeds
- Jefferson County, GA: less DSL coverage, slower speeds
- Washington County, GA: less DSL coverage, slower speeds
- Baldwin County, GA: more DSL coverage, faster speeds
- Wilkinson County, GA: more DSL coverage, faster speeds
- Jones County, GA: more DSL coverage, faster speeds
Counties with Similar Populations
- McLean County, IL: more DSL coverage, slower speeds
- Beaver County, PA: less DSL coverage, slower speeds
- Greene County, OH: more DSL coverage, slower speeds
- Bibb County, GA: less DSL coverage, slower speeds
- Carolina Municipio, PR: more DSL coverage, slower speeds
- Catawba County, NC: more DSL coverage, slower speeds
- Centre County, PA: less DSL coverage, faster speeds
- Chittenden County, VT: more DSL coverage, slower speeds
- Ector County, TX: less DSL coverage, slower speeds
- Davidson County, NC: more DSL coverage, slower speeds