Best Internet Providers in Dorchester County, SC
All 10 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Dorchester County, SC
Dorchester County has 10 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, DSL, and Fixed Wireless internet are available in the county. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Dorchester County.
Ranks compare Dorchester County with the 46 South Carolina counties.
The Best Internet in Dorchester County, SC at a Glance
Dorchester County Internet Providers, Ranked by Coverage, Speed and Customer Ratings
Spectrum
Connection
Customer Rating
Fiber
Cable
EarthLink
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
AT&T
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
WOW!
Connection
Customer Rating
Cable
Providers with less than 1% coverage in this county are excluded from the list. To see if one of these providers is available at your home, please use the address search above.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local Dorchester County ratings may vary and are shown below.
Who is the Best Internet Provider in Dorchester County, SC?
AT&T is the highest-rated internet provider in Dorchester County based on 119 South Carolina customer reviews, and T-Mobile Home Internet has the highest rating nationwide. The provider information above and the information immediately below can help you decide. Compare provider ratings and review counts above.
or call 1-877-610-1219
Which Providers are Available at my Home in Dorchester County?
Coverage changes block by block. Pick a provider and a technology to see where its service reaches: the darker the area, the larger the share of homes it covers. For your exact address, use the address search above.
Coverage map for each provider in Dorchester County
- AT&T - fiber coverage map
- EarthLink - fiber coverage map
- Spectrum - cable coverage map
- Home Telecom - fiber coverage map
- WOW! - cable coverage map
- XFINITY - cable coverage map
- Verizon - fixed wireless coverage map
- Hotwire Communications - fiber coverage map
- Spectrum - fiber coverage map
- XFINITY - fiber coverage map
- PRTC - fiber coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- AT&T - dsl coverage map
- EarthLink - dsl coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
How Dorchester County Compares to the Rest of South Carolina
Dorchester County's report card score is tied 5th of 46 and its connectivity index is tied 3rd of 46.
| Measure | Dorchester County | Rank among South Carolina counties | South Carolina | US | Leader |
|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | |||||
| Fiber availability | 77.3% | 28th of 46 | 75.7% | 71.5% | Marlboro County (99.3%) |
| Average top speed | 3,420 Mbps | 15th of 46 | 3,370 Mbps | 3,486 Mbps | McCormick County (7,976 Mbps) |
| Providers at a typical address | 8.1 | Tied 3rd of 46 | 6.9 | 7.1 | Greenville County (8.5) |
| Connectivity index inputs: how much households need and use the internet | |||||
| People per household | 2.7 | Tied 1st of 46 | 2.5 | 2.7 | Tied with Bamberg County and Edgefield County |
| Workers who work from home | 12% | Tied 9th of 46 | 12% | 15% | Lancaster County (21%) |
| Homes with a computer, tablet or phone | 97% | Tied 1st of 46 | 95% | 96% | Tied with Beaufort County and Berkeley County and 3 more |
| Homes with internet | 92% | 6th of 46 | 89% | 91% | Beaufort County (95%) |
| Homes on fiber, cable or DSL | 78% | Tied 8th of 46 | 73% | 76% | Beaufort County (83%) |
| More about the households here | |||||
| Homes with a desktop or laptop | 83% | Tied 3rd of 46 | 77% | 81% | Beaufort County (86%) |
| Median household income | $87,012 | 6th of 46 | $77,367 | $93,246 | York County ($100,366) |
| Residents in school (6th grade to college) | 15% | Tied 9th of 46 | 15% | 16% | Pickens County (25%) |
Fiber reaches 77.3% of homes in Dorchester County, against 75.7% across South Carolina. Households in Dorchester County are the same size as the US average (2.7 people against 2.7); 12% of workers work from home (US 15%); and the median household income is $87,012 (US $93,246).
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
How Dorchester County Compares to Its Neighbors
Dorchester County has 4 neighbors. Among them, Colleton County has the most homes with fiber (97.2%) and Orangeburg County the fewest (62.5%); Dorchester County has 77.3%.
Map of Dorchester County and its neighbors by ISP Report Card grade
Hover over or tap a county for its numbers, and click through to its page.
Dorchester County and its neighbors
| County | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Dorchester County (this page) | 161,540 | 77.3% | 3,420 Mbps | 8.1 | B+ | 71/100 |
| Charleston County | 408,235 | 64.4% | 3,470 Mbps | 7.8 | B | 63/100 |
| Berkeley County | 229,861 | 77.5% | 4,249 Mbps | 6.7 | B | 71/100 |
| Orangeburg County | 84,223 | 62.5% | 1,415 Mbps | 5.8 | C+ | 30/100 |
| Colleton County | 38,604 | 97.2% | 1,139 Mbps | 3.9 | C+ | 42/100 |
Internet in Dorchester County by City and ZIP Code
Fiber reaches from 60.4% of homes in Ridgeville to 100.0% in Dorchester; by ZIP code, from 66.1% in 29472 (Ridgeville) to 100.0% in 29471 (Reevesville). Each row links to that place’s page.
Cities and towns in Dorchester County
| City or town | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Summerville | 144,046 | 77.3% | 3,688 Mbps | 8.4 | B+ | 79/100 |
| Ladson | 40,301 | 85.2% | 3,889 Mbps | 8.2 | B+ | 75/100 |
| Ridgeville | 7,327 | 60.4% | 2,570 Mbps | 4.1 | C | 32/100 |
| St. George | 5,316 | 99.3% | 1,057 Mbps | 5.2 | B- | 21/100 |
| Harleyville | 2,156 | 76.4% | 3,950 Mbps | 3.1 | C+ | 28/100 |
| Dorchester | 1,731 | 100.0% | 4,723 Mbps | 3 | B | 32/100 |
| Reevesville | 1,639 | 99.6% | 1,108 Mbps | 4.1 | B- | 22/100 |
| Givhans | 1,489 | 80.3% | 4,022 Mbps | 5.7 | B | 48/100 |
| Pregnall | 602 | 99.0% | 4,924 Mbps | 2.3 | B- | 32/100 |
| Grover | 597 | 100.0% | 1,000 Mbps | 3.3 | C+ | 23/100 |
| Four Holes | 490 | 95.5% | 4,164 Mbps | 3.5 | B- | 41/100 |
| Rosinville | 415 | 100.0% | 3,024 Mbps | 5.4 | B+ | 26/100 |
| Slandsville | 184 | 93.5% | 4,460 Mbps | 4.3 | B- | 49/100 |
ZIP codes in Dorchester County
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 29483 (Summerville) | 62,663 | 72.0% | 3,395 Mbps | 8.2 | B+ | 76/100 |
| 29485 (Summerville) | 56,529 | 80.1% | 3,728 Mbps | 8.6 | B+ | 77/100 |
| 29456 (Ladson) | 36,439 | 84.3% | 3,784 Mbps | 8.1 | B+ | 73/100 |
| 29420 (North Charleston) | 26,638 | 74.1% | 3,522 Mbps | 8.4 | B+ | 75/100 |
| 29472 (Ridgeville) | 10,323 | 66.1% | 3,045 Mbps | 4.4 | C+ | 36/100 |
| 29477 (St. George) | 6,332 | 99.3% | 1,000 Mbps | 5 | B- | 21/100 |
| 29437 (Dorchester) | 2,443 | 99.8% | 4,940 Mbps | 2.7 | B- | 32/100 |
| 29448 (Harleyville) | 2,262 | 77.5% | 4,031 Mbps | 3.3 | C+ | 27/100 |
| 29471 (Reevesville) | 1,522 | 100.0% | 1,116 Mbps | 4.1 | B- | 22/100 |
Who is the Fastest Internet Provider in Dorchester County?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by AT&T. On the other hand, based on data provided by the internet providers to the FCC, AT&T and EarthLink should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in Dorchester County
| Hotwire Communications | 8,000 |
|---|---|
| AT&T | 5,000 |
| EarthLink | 5,000 |
| Home Telecom | 5,000 |
| XFINITY from Comcast | 2,000 |
| WOW! | 1,200 |
| Spectrum | 1,000 |
| Palmetto Rural Telephone Cooperative | 1,000 |
| Verizon | 300 |
| T-Mobile Home Internet | 100 |
| Viasat | 100 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Dorchester County. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Dorchester County Internet Providers
Based on 119 reviews from South Carolina internet customers, AT&T is the best internet service provider for Dorchester County residents. AT&T was rated at an average of 3.41 out of 5 in our report for overall customer satisfaction. EarthLink wins for second-place in South Carolina, with 5.00 out of 5 stars and 92.8% coverage in Dorchester County.
At a national level, based on 6616 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.02 out of 5.
Local, State, and National Ratings for all Dorchester County Internet Providers
The table below shows average customer ratings from customers in Dorchester County, South Carolina, and customers throughout the country.
| ISP / Tech Type | Dorchester County Overall | South Carolina Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| AT&T |  (1) | (22) | (1051) | View Plans | ||
| EarthLink |  (0) | (1) | (15) | View Plans | ||
| PRTC | (0) | (1) | (3) | View Plans | ||
| Verizon | (0) |  (11) | (816) | View Plans | ||
| WOW! | (0) |  (1) | (33) | View Plans | ||
| Spectrum | (2) | (55) | (1949) | View Plans | ||
| T-Mobile Home Internet | (1) | (5) | (342) | View Plans | ||
| XFINITY | (1) | (12) | (2379) | View Plans | ||
| Home Telecom | (7) | (11) | (13) | View Plans | ||
| Hotwire Communications | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) |  (25) | View Plans | ||
| Viasat | (0) | (0) |  (12) | View Plans |
Customer Ratings for Internet Provider Speeds in Dorchester County
Based on data reported by Dorchester County ISPs to the FCC, the fastest speeds in the county are available through AT&T and EarthLink. These internet providers offer speeds up to 5,000 Mbps in Dorchester County. Therefore, the average customer can get up to 2,769 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers rated their satisfaction with internet speed highest with AT&T. This indicates AT&T reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Dorchester County Speed | South Carolina Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| AT&T | (1) | (22) | (1051) | View Plans | ||
| Home Telecom | (7) | (11) | (13) | View Plans | ||
| EarthLink | (0) | (1) | (15) | View Plans | ||
| PRTC | (0) | (1) | (3) | View Plans | ||
| Verizon | (0) | (11) | (816) | View Plans | ||
| WOW! | (0) | (1) | (33) | View Plans | ||
| XFINITY | (1) | (12) | (2379) | View Plans | ||
| Spectrum | (2) | (55) | (1949) | View Plans | ||
| T-Mobile Home Internet | (1) | (5) | (342) | View Plans | ||
| Hotwire Communications | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Who is the Cheapest Internet Provider in Dorchester County?
Of the providers in Dorchester County, customers rate AT&T the best for price. Data comes from customers rating their satisfaction with pricing: in Dorchester County where enough of them have reviewed a provider, otherwise across South Carolina or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
AT&T is rated 5.00 out of 5 for price, which is much higher than the average across all internet providers in the country. Spectrum is rated second for affordability, with an average price rating of 4.00 out of 5.
The table below shows how customers in Dorchester County, South Carolina, and the United States rated the affordability of their internet service.
Rated Affordability in Dorchester County
| ISP / Tech Type | Dorchester County Affordability | South Carolina Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| AT&T | (1) | (22) | (1051) | View Plans | ||
| Spectrum | (2) | (55) | (1949) | View Plans | ||
| EarthLink | (0) | (1) | (15) | View Plans | ||
| PRTC | (0) | (1) | (3) | View Plans | ||
| Verizon | (0) | (11) | (816) | View Plans | ||
| WOW! | (0) | (1) | (33) | View Plans | ||
| T-Mobile Home Internet | (1) | (5) | (342) | View Plans | ||
| Home Telecom | (7) | (11) | (13) | View Plans | ||
| XFINITY | (1) | (12) | (2379) | View Plans | ||
| Hotwire Communications | (0) | (0) | (15) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Fiber, 5G, Cable and DSL Internet in Dorchester County
Which Fiber Internet Providers are Available in Dorchester County?
EarthLink Fiber in Dorchester County, SC
Availability:
62.6%
Customer Rating:
(6)
Avg. Download Speed
4,076 Mbps
EarthLink offers Fiber service to 62.6% of Dorchester County homes. Across the county, EarthLink Fiber has speeds up to 4,076 Mbps, with speeds from 1,000 Mpbs up to 5,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for EarthLink Fiber. EarthLink Fiber is rated about the same as other types of internet service available in Dorchester County from EarthLink in terms of customer satisfaction.
AT&T Fiber in Dorchester County, SC
Availability:
62.6%
Customer Rating:
(542)
Avg. Download Speed
4,076 Mbps
AT&T offers Fiber service to 62.6% of Dorchester County homes. Across the county, AT&T Fiber has speeds up to 4,076 Mbps, with speeds from 1,000 Mpbs up to 5,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for AT&T Fiber. AT&T Fiber is rated lower than other types of internet service available in Dorchester County from AT&T in terms of customer satisfaction.
Home Telecom Fiber in Dorchester County, SC
Availability:
13.4%
Customer Rating:
(10)
Avg. Download Speed
5,000 Mbps
Home Telecom offers Fiber service to 13.4% of Dorchester County homes. Across the county, Home Telecom Fiber is the only type of service available from the company, with speeds up to 5,000 Mbps
Spectrum Fiber in Dorchester County, SC
Availability:
11.5%
Customer Rating:
(207)
Avg. Download Speed
1,000 Mbps
Spectrum offers Fiber service to 11.5% of Dorchester County homes. Across the county, Spectrum Fiber has speeds up to 1,000 Mbps
PRTC Fiber in Dorchester County, SC
Availability:
5.8%
Customer Rating:
(3)
Avg. Download Speed
1,000 Mbps
Palmetto Rural Telephone Cooperative offers Fiber service to 5.8% of Dorchester County homes. Across the county, PRTC Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
XFINITY Fiber in Dorchester County, SC
Availability:
4.3%
Customer Rating:
(300)
Avg. Download Speed
1,929 Mbps
XFINITY from Comcast offers Fiber service to 4.3% of Dorchester County homes. Across the county, XFINITY Fiber has speeds up to 1,929 Mbps, with speeds from 1,200 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 35 and as high as 2,000, with an average of 1,810 Mbps throughout the county. XFINITY Fiber is rated about the same as other types of internet service available in Dorchester County from XFINITY in terms of customer satisfaction.
Hotwire Communications Fiber in Dorchester County, SC
Availability:
2.6%
Customer Rating:
(11)
Avg. Download Speed
8,000 Mbps
Hotwire Communications offers Fiber service to 2.6% of Dorchester County homes. Across the county, Hotwire Communications Fiber is the only type of service available from the company, with speeds up to 8,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Dorchester County?
T-Mobile Home Internet Fixed Wireless in Dorchester County, SC
Availability:
96.2%
Customer Rating:
(342)
Avg. Download Speed
57 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 96.2% of Dorchester County homes. Across the county, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 57 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 10 Mbps throughout the county.
Verizon Fixed Wireless in Dorchester County, SC
Availability:
89.7%
Customer Rating:
(362)
Avg. Download Speed
230 Mbps
Verizon offers Fixed Wireless service to 89.7% of Dorchester County homes. Across the county, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 230 Mbps, with speeds from 25 Mpbs up to 300 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 6.0 and as high as 20, with an average of 16 Mbps throughout the county.
EarthLink Fixed Wireless in Dorchester County, SC
Availability:
80.3%
Customer Rating:
(4)
Avg. Download Speed
32 Mbps
EarthLink offers Fixed Wireless service to 80.3% of Dorchester County homes. Across the county, EarthLink Fixed Wireless has speeds up to 32 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 4.5 Mbps throughout the county.
AT&T Fixed Wireless in Dorchester County, SC
Availability:
80.3%
Customer Rating:
(205)
Avg. Download Speed
32 Mbps
AT&T offers Fixed Wireless service to 80.3% of Dorchester County homes. Across the county, AT&T Fixed Wireless has speeds up to 32 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 4.5 Mbps throughout the county.
Which Cable Internet Providers are Available in Dorchester County?
Spectrum Cable in Dorchester County, SC
Availability:
87.3%
Customer Rating:
(1739)
Avg. Download Speed
1,000 Mbps
Spectrum offers Cable service to 87.3% of Dorchester County homes. Across the county, Spectrum Cable has speeds up to 1,000 Mbps
WOW! Cable in Dorchester County, SC
Availability:
43.6%
Customer Rating:
(31)
Avg. Download Speed
1,200 Mbps
WOW! offers Cable service to 43.6% of Dorchester County homes. Across the county, WOW! Cable is the only type of service available from the company, with speeds up to 1,200 Mbps
XFINITY Cable in Dorchester County, SC
Availability:
24.5%
Customer Rating:
(2077)
Avg. Download Speed
1,495 Mbps
XFINITY from Comcast offers Cable service to 24.5% of Dorchester County homes. Across the county, XFINITY Cable has speeds up to 1,495 Mbps, with speeds from 1,200 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 35 and as high as 250, with an average of 114 Mbps throughout the county. XFINITY Cable is rated the same as other types of internet service available in Dorchester County from XFINITY in terms of customer satisfaction.
Which DSL Internet Providers are Available in Dorchester County?
EarthLink DSL in Dorchester County, SC
Availability:
69.2%
Customer Rating:
(5)
Avg. Download Speed
70 Mbps
EarthLink offers DSL service to 69.2% of Dorchester County homes. Across the county, EarthLink DSL has speeds up to 70 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 14 Mbps throughout the county. EarthLink DSL is rated higher than other types of internet service available in Dorchester County from EarthLink in terms of customer satisfaction.
AT&T DSL in Dorchester County, SC
Availability:
69.2%
Customer Rating:
(304)
Avg. Download Speed
70 Mbps
AT&T offers DSL service to 69.2% of Dorchester County homes. Across the county, AT&T DSL has speeds up to 70 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 14 Mbps throughout the county. AT&T DSL is rated about the same as other types of internet service available in Dorchester County from AT&T in terms of customer satisfaction.
Customer Reviews for Internet Service Providers in South Carolina
Customer Reviews
A Summerville, SC Customer
T-Mobile Home Internet Fixed Wireless
May 12, 2026 I am finding it more and more difficult to justify the cost of high speed internet due to the ever rising cost. I have an unlimited data plan thru my employer and I feel like I can just use my phone's hotspot for my needs.
A Harleyville, SC Customer
Home Telecom Cable
May 10, 2025 A Ridgeville, SC Customer
Home Telecom Fiber
January 06, 2025 We're overall happy with Home Telecom. It was really the only choice at the time we decided to move to this area, and there have since been other options but we've stuck with them. The speeds do have issues occasionally, but customer service is good and pricing is fair so we really have no reason to switch.
Stephen W.
Home Telecom Fiber
November 23, 2024 I have had HomeTelecom for about 6 years now and overall am very happy with them. Initially I was put off because the box they had to bury in our front yard prevented grass from growing there, in fact even now it's still a bald patch. However the service itself is great. Fast speeds and has been pretty solid in terms of reliability. I just wish the pricing was a bit better. It is inline with competition overall but paying over $150 a month for 1Gig just feels like a lot. I currently subscribe to the 300mbps for about half that and honestly it's more than I need. So while I have a few grumbles, I still highly recommend them.
A North Charleston, SC Customer
Spectrum Cable
October 21, 2024 Rate your provider
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Which ISP Should You Choose in Dorchester County?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in Dorchester County is AT&T.
- The fastest internet provider should be AT&T and EarthLink. Considering speed for the money and reliability in speeds, AT&T may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Dorchester County is AT&T.
- Viasat, T-Mobile Home Internet, and HughesNet has the broadest coverage in Dorchester County, available to 96.2% of homes, and is most likely to cover your home. To find out exactly what’s available at your home, please use our address search tool.