In Marlboro County there are 2 residential DSL providers covering 48.11% of the county. The average home can get speeds up to 10 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 Marlboro County, SC.
To see availability maps for all providers including fiber, cable, DSL, and more in Marlboro County, SC please click below.
Marlboro County, SC Availability Maps
DSL Internet Service Providers in Marlboro 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 Marlboro County are not shown.
Marlboro 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 Marlboro County is DSL internet available?
DSL Internet Availability Key
DSL is available in 48.11% of Marlboro 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 Marlboro County above to see who has service at your home.
How fast is DSL internet in Marlboro County?
The map below shows maximum DSL internet speeds by area in Marlboro County.
DSL Internet Speed Key
The average Marlboro County home can get up to 10 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 10 Mbps, which 48.11% of residents can get.
Is DSL the fastest internet I can get in Marlboro County?
The fastest internet for you may vary based on where in Marlboro County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 95.70% of Marlboro County homes.
- Cable is fastest for 3.73% 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 Marlboro County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Marlboro County, along with details on where in Marlboro County and at what speeds.
AT&T DSL in Marlboro County, SC
AT&T DSL coverage
About 48.11%, or 12,829 people, have AT&T DSL internet available to them in the county. The company covers the entire Marlboro County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in some of Marlboro County.
AT&T DSL download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in Marlboro County. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are no different maximum speeds throughout Marlboro County. The fastest plan anyone in Marlboro County can order from AT&T goes up to 10 Mbps, and all Marlboro County customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
AT&T DSL upload speeds
In Marlboro County download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is one of the slowest where upload speeds are concerned, and one of the fastest compared to other Marlboro County DSL providers. AT&T offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Marlboro County is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
EarthLink DSL in Marlboro County, SC
EarthLink DSL coverage
About 48.11%, or 12,829 people, have EarthLink DSL internet available to them in the county. The company covers the entire Marlboro County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in some of Marlboro County.
EarthLink DSL download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in Marlboro County. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are no different maximum speeds throughout Marlboro County. The fastest plan anyone in Marlboro County can order from EarthLink goes up to 10 Mbps, and all Marlboro County customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
EarthLink DSL upload speeds
In Marlboro County download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is one of the slowest where upload speeds are concerned, and one of the fastest compared to other Marlboro County DSL providers. EarthLink offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Marlboro County is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Marlboro County DSL by Area
This information is most helpful to those looking for homes or considering moving to Marlboro County or any of the areas nearby.
How does DSL internet in Marlboro County compare to the rest of South Carolina?
DSL internet speeds in Marlboro County are much faster versus the average speeds in South Carolina: 0.00 Mbps in South Carolina versus 10 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in South Carolina is 0.00% versus 48.11% in Marlboro County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Marlboro 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
- Scotland County, NC: more DSL coverage, faster speeds
- Chesterfield County, SC: more DSL coverage, faster speeds
- Robeson County, NC: more DSL coverage, faster speeds
- Bladen County, NC: more DSL coverage, faster speeds
- Chester County, SC: less DSL coverage, faster speeds
- Union County, SC: more DSL coverage, faster speeds
- Onslow County, NC: more DSL coverage, faster speeds
- Laurens County, SC: more DSL coverage, faster speeds
- Carteret County, NC: more DSL coverage, faster speeds
- Anderson County, SC: more DSL coverage, faster speeds
Counties with Similar Populations
- Young County, TX: less DSL coverage, faster speeds
- Banks County, GA: more DSL coverage, faster speeds
- Alcorn County, MS: more DSL coverage, faster speeds
- Aguas Buenas Municipio, PR: more DSL coverage, similar speeds
- Adjuntas Municipio, PR: more DSL coverage, faster speeds
- Adams County, WI: more DSL coverage, faster speeds
- Adams County, WA: more DSL coverage, faster speeds
- Adams County, OH: more DSL coverage, faster speeds
- Adams County, NE: more DSL coverage, faster speeds
- Adams County, MS: more DSL coverage, faster speeds