In Dorchester County there are 7 residential Fiber providers covering 74.11% of the county. The average home can get speeds up to 3,810 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 Fiber 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
Fiber 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 fiber internet available?
Fiber Internet Availability Key
Fiber is available in 74.11% of Dorchester County. Areas in green have fiber 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 fiber internet in Dorchester County?
The map below shows maximum fiber internet speeds by area in Dorchester County.
Fiber Internet Speed Key
The average Dorchester County home can get up to 3,810 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 5,000 Mbps, which 51.95% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 19.98% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Dorchester County.
Fiber internet speeds tend to be faster in the west parts of Dorchester County, and slower in the southwest areas of the county.
Is fiber 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, cable competes most often with fiber 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.
Fiber 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.
EarthLink Fiber in Dorchester County, SC
EarthLink fiber coverage
About 60.46%, or 97,662 people, have EarthLink fiber internet available to them in the county. The company covers the southeast, central, east, south, north, northwest, and west Dorchester County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Dorchester County.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in Dorchester County. Versus other fiber providers in the area, EarthLink fiber is above average. There are 2 different maximum speeds throughout Dorchester County. The fastest plan anyone in Dorchester County can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Dorchester County customers is up to 3,933 Mbps.
Show all download speeds
- 73.3% up to 5,000.0 Mbps
- 26.7% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Dorchester County download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is above average where upload speeds are concerned, and above average compared to other Dorchester County fiber providers. EarthLink offers 2 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 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, EarthLink customers can get speeds up to 3,933 Mbps.
Show all upload speeds
- 73.3% up to 5,000.0 Mbps
- 26.7% up to 1,000.0 Mbps
AT&T Fiber in Dorchester County, SC
AT&T fiber coverage
About 60.46%, or 97,662 people, have AT&T fiber internet available to them in the county. The company covers the southeast, central, east, south, north, northwest, and west Dorchester County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Dorchester County.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in Dorchester County. Versus other fiber providers in the area, AT&T fiber is above average. There are 2 different maximum speeds throughout Dorchester County. The fastest plan anyone in Dorchester County can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Dorchester County customers is up to 3,933 Mbps.
Show all download speeds
- 73.3% up to 5,000.0 Mbps
- 26.7% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Dorchester County download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is above average where upload speeds are concerned, and above average compared to other Dorchester County fiber providers. AT&T offers 2 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 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, AT&T customers can get speeds up to 3,933 Mbps.
Show all upload speeds
- 73.3% up to 5,000.0 Mbps
- 26.7% up to 1,000.0 Mbps
Home Telecom Fiber in Dorchester County, SC
Home Telecom fiber coverage
About 12.77%, or 20,626 people, have Home Telecom fiber internet available to them in the county. The company covers the central, northwest, south, southeast, east, west, and north Dorchester County area. Home Telecom is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Dorchester County.
Home Telecom fiber download speeds
Home Telecom is the fastest when comparing download speeds to all other internet providers in Dorchester County. Versus other fiber providers in the area, Home Telecom fiber is the fastest. There are no different maximum speeds throughout Dorchester County. The fastest plan anyone in Dorchester County can order from Home Telecom goes up to 5,000 Mbps, and all Dorchester County customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
Home Telecom fiber upload speeds
In Dorchester County download speeds tend to be equal to than upload speeds for Home Telecom fiber. Compared to other ISPs, Home Telecom is the fastest where upload speeds are concerned, and the fastest compared to other Dorchester County fiber providers. Home Telecom offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Dorchester County is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
Spectrum Fiber in Dorchester County, SC
Spectrum fiber coverage
About 8.46%, or 13,666 people, have Spectrum fiber internet available to them in the county. The company covers the northwest, southeast, central, east, south, and southwest Dorchester County area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Dorchester County.
Spectrum fiber download speeds
Spectrum is below average when comparing download speeds to all other internet providers in Dorchester County. Versus other fiber providers in the area, Spectrum fiber is one of the slowest. There are no different maximum speeds throughout Dorchester County. The fastest plan anyone in Dorchester County can order from Spectrum goes up to 1,000 Mbps, and all Dorchester County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In Dorchester County download speeds tend to be faster than than upload speeds for Spectrum fiber. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and below average compared to other Dorchester County fiber providers. Spectrum offers 2 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 500 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, Spectrum customers can get speeds up to 483 Mbps.
Show all upload speeds
- 96.3% up to 500.0 Mbps
- 3.7% up to 35.0 Mbps
Palmetto Rural Telephone Cooperative Fiber in Dorchester County, SC
PRTC fiber coverage
About 5.84%, or 9,435 people, have PRTC fiber internet available to them in the county. The company covers the northwest, southwest, south, and southeast Dorchester County area. PRTC is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Dorchester County.
Palmetto Rural Telephone Cooperative fiber download speeds
PRTC is below average when comparing download speeds to all other internet providers in Dorchester County. Versus other fiber providers in the area, PRTC fiber is one of the slowest. There are no different maximum speeds throughout Dorchester County. The fastest plan anyone in Dorchester County can order from PRTC goes up to 1,000 Mbps, and all Dorchester County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Palmetto Rural Telephone Cooperative fiber upload speeds
In Dorchester County download speeds tend to be equal to than upload speeds for PRTC fiber. Compared to other ISPs, PRTC is above average where upload speeds are concerned, and below average compared to other Dorchester County fiber providers. PRTC offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Dorchester County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
XFINITY from Comcast Fiber in Dorchester County, SC
XFINITY fiber coverage
About 2.81%, or 4,546 people, have XFINITY fiber internet available to them in the county. The company covers the southeast, central, and south Dorchester County area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Dorchester County.
XFINITY from Comcast fiber download speeds
XFINITY is below average when comparing download speeds to all other internet providers in Dorchester County. Versus other fiber providers in the area, XFINITY fiber is below average. There are 3 different maximum speeds throughout Dorchester County. The fastest plan anyone in Dorchester County can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Dorchester County customers is up to 1,193 Mbps.
Show all download speeds
- 3.9% up to 2,000.0 Mbps
- 77.4% up to 1,200.0 Mbps
- 18.7% up to 1,000.0 Mbps
XFINITY from Comcast fiber upload speeds
In Dorchester County download speeds tend to be faster than than upload speeds for XFINITY fiber. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the slowest compared to other Dorchester County fiber providers. XFINITY offers 3 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 1,000 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 337 Mbps.
Show all upload speeds
- 30.5% up to 1,000.0 Mbps
- 3.9% up to 250.0 Mbps
- 65.7% up to 35.0 Mbps
Hotwire Communications Fiber in Dorchester County, SC
Hotwire Communications fiber coverage
About 1.42%, or 2,287 people, have Hotwire Communications fiber internet available to them in the county. The company covers the southeast, central, east, north, and south Dorchester County area. Hotwire Communications is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Dorchester County.
Hotwire Communications fiber download speeds
Hotwire Communications is below average when comparing download speeds to all other internet providers in Dorchester County. Versus other fiber providers in the area, Hotwire Communications fiber is below average. There are no different maximum speeds throughout Dorchester County. The fastest plan anyone in Dorchester County can order from Hotwire Communications goes up to 1,200 Mbps, and all Dorchester County customers can get this speed.
Show all download speeds
- 100.0% up to 1,200.0 Mbps
Hotwire Communications fiber upload speeds
In Dorchester County download speeds tend to be equal to than upload speeds for Hotwire Communications fiber. Compared to other ISPs, Hotwire Communications is above average where upload speeds are concerned, and below average compared to other Dorchester County fiber providers. Hotwire Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Dorchester County is up to 1,200 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,200.0 Mbps
Dorchester County Fiber 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 fiber internet in Dorchester County compare to the rest of South Carolina?
Fiber internet speeds in Dorchester County are much faster versus the average speeds in South Carolina: 0.00 Mbps in South Carolina versus 3,810 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in South Carolina is 0.00% versus 74.11% in Dorchester County.
What zip codes have fiber internet?
Fiber 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 fiber 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: more fiber coverage, faster speeds
- Charleston County, SC: less fiber coverage, faster speeds
- Colleton County, SC: more fiber coverage, slower speeds
- Hampton County, SC: more fiber coverage, slower speeds
- Allendale County, SC: more fiber coverage, slower speeds
- Jefferson County, GA: more fiber coverage, slower speeds
- Washington County, GA: less fiber coverage, slower speeds
- Baldwin County, GA: more fiber coverage, slower speeds
- Wilkinson County, GA: less fiber coverage, slower speeds
- Jones County, GA: more fiber coverage, slower speeds
Counties with Similar Populations
- McLean County, IL: more fiber coverage, faster speeds
- Beaver County, PA: less fiber coverage, slower speeds
- Greene County, OH: less fiber coverage, faster speeds
- Bibb County, GA: more fiber coverage, faster speeds
- Carolina Municipio, PR: less fiber coverage, slower speeds
- Catawba County, NC: less fiber coverage, faster speeds
- Centre County, PA: less fiber coverage, faster speeds
- Chittenden County, VT: less fiber coverage, slower speeds
- Ector County, TX: less fiber coverage, faster speeds
- Davidson County, NC: less fiber coverage, faster speeds