Best Internet Providers in Marlboro County, SC
All 7 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Marlboro County, SC
Marlboro County has 7 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Fiber, Cable, Fixed Wireless, and DSL 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 Marlboro County.
Ranks compare Marlboro County with the 46 South Carolina counties.
The Best Internet in Marlboro County, SC at a Glance
Marlboro County Internet Providers, Ranked by Coverage, Speed and Customer Ratings
Spectrum
Connection
Customer Rating
Fiber
Sandhill Telephone Cooperative
Connection
Customer Rating
Fiber
Cable
EarthLink
Connection
Customer Rating
DSL
Fixed Wireless
AT&T
Connection
Customer Rating
DSL
Fixed Wireless
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 Marlboro County ratings may vary and are shown below.
Who is the Best Internet Provider in Marlboro County, SC?
Verizon is the highest-rated internet provider in Marlboro County based on 95 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 1-833-213-7018
Which Providers are Available at my Home in Marlboro 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 Marlboro County
- Spectrum - fiber coverage map
- Sandhill Telephone Cooperative - fiber coverage map
- Sandhill Telephone Cooperative - cable coverage map
- Verizon - fixed wireless coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- River Street - fixed wireless coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
- AT&T - dsl coverage map
- EarthLink - dsl coverage map
How Marlboro County Compares to the Rest of South Carolina
Marlboro County's report card score is tied 14th of 46 and its connectivity index is 44th of 46.
| Measure | Marlboro County | Rank among South Carolina counties | South Carolina | US | Leader |
|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | |||||
| Fiber availability | 99.3% | 1st of 46 | 75.7% | 71.5% | Leads; next is McCormick County (99.0%) |
| Average top speed | 997 Mbps | Tied 42nd of 46 | 3,370 Mbps | 3,486 Mbps | McCormick County (7,976 Mbps) |
| Providers at a typical address | 6.6 | Tied 15th of 46 | 6.9 | 7.1 | Greenville County (8.5) |
| Connectivity index inputs: how much households need and use the internet | |||||
| People per household | 2.5 | Tied 12th of 46 | 2.5 | 2.7 | Bamberg County and Dorchester County and 1 more (2.7) |
| Workers who work from home | 4% | 44th of 46 | 12% | 15% | Lancaster County (21%) |
| Homes with a computer, tablet or phone | 85% | Tied 43rd of 46 | 95% | 96% | Beaufort County and Berkeley County and 4 more (97%) |
| Homes with internet | 73% | 44th of 46 | 89% | 91% | Beaufort County (95%) |
| Homes on fiber, cable or DSL | 43% | 42nd of 46 | 73% | 76% | Beaufort County (83%) |
| More about the households here | |||||
| Homes with a desktop or laptop | 50% | 45th of 46 | 77% | 81% | Beaufort County (86%) |
| Median household income | $37,811 | 46th of 46 | $77,367 | $93,246 | York County ($100,366) |
| Residents in school (6th grade to college) | 13% | Tied 24th of 46 | 15% | 16% | Pickens County (25%) |
Fiber reaches 99.3% of homes in Marlboro County, against 75.7% across South Carolina. Households in Marlboro County are smaller than the US average (2.5 people against 2.7); 4% of workers work from home (US 15%); and the median household income is $37,811 (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 Marlboro County Compares to Its Neighbors
Marlboro County has 8 neighbors, 4 of them in North Carolina. Among them, Chesterfield County has the most homes with fiber (89.0%) and Scotland County, NC the fewest (27.6%); Marlboro County has 99.3%.
Map of Marlboro County and its neighbors by ISP Report Card grade
Hover over or tap a county for its numbers, and click through to its page.
Marlboro County and its neighbors
| County | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Marlboro County (this page) | 26,667 | 99.3% | 997 Mbps | 6.6 | B | 18/100 |
| Florence County | 137,059 | 55.2% | 1,916 Mbps | 5.6 | C+ | 43/100 |
| Robeson County, NC | 116,530 | 76.4% | 1,697 Mbps | 6.1 | B- | 35/100 |
| Darlington County | 62,905 | 32.7% | 996 Mbps | 5.5 | C- | 32/100 |
| Chesterfield County | 43,273 | 89.0% | 1,221 Mbps | 5.1 | C+ | 38/100 |
| Richmond County, NC | 42,946 | 42.8% | 1,398 Mbps | 7.4 | C+ | 43/100 |
| Scotland County, NC | 34,174 | 27.6% | 1,708 Mbps | 5.7 | C | 45/100 |
| Dillon County | 28,292 | 35.4% | 998 Mbps | 4.7 | C- | 20/100 |
| Anson County, NC | 22,055 | 68.0% | 1,245 Mbps | 4.5 | C | 43/100 |
Internet in Marlboro County by City and ZIP Code
Fiber reaches from 98.6% of homes in Clio to 99.9% in Wallace; by ZIP code, from 98.5% in 29570 (McColl) to 99.9% in 29596 (Wallace). Each row links to that place’s page.
Cities and towns in Marlboro County
| City or town | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Bennettsville | 16,443 | 99.3% | 996 Mbps | 6.4 | B | 23/100 |
| McColl | 3,587 | 99.3% | 1,000 Mbps | 7.7 | B+ | 15/100 |
| Wallace | 2,464 | 99.9% | 1,000 Mbps | 6.1 | B | 14/100 |
| Clio | 1,702 | 98.6% | 1,000 Mbps | 7.9 | B+ | 14/100 |
| Lester | 707 | 100.0% | 1,000 Mbps | 6.8 | B | 20/100 |
| Blenheim | 556 | 100.0% | 1,000 Mbps | 6 | B | 24/100 |
| Tatum | 383 | 92.4% | 952 Mbps | 6.5 | B- | 18/100 |
| Marlboro | 276 | 100.0% | 1,000 Mbps | 4.4 | B- | 21/100 |
| Bristow | 208 | 100.0% | 1,000 Mbps | 4.1 | C+ | 23/100 |
| Brownsville | 108 | 100.0% | 1,000 Mbps | 5.9 | B | 24/100 |
| Drake | 96 | 100.0% | 1,000 Mbps | 5.2 | B- | 24/100 |
ZIP codes in Marlboro County
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 29512 (Bennettsville) | 17,967 | 99.4% | 997 Mbps | 6.4 | B | 22/100 |
| 29570 (McColl) | 3,664 | 98.5% | 995 Mbps | 7.7 | B | 15/100 |
| 29596 (Wallace) | 2,378 | 99.9% | 1,000 Mbps | 6 | B | 14/100 |
| 29525 (Clio) | 1,746 | 99.1% | 1,000 Mbps | 7.7 | B+ | 13/100 |
| 29516 (Blenheim) | 715 | 99.7% | 1,000 Mbps | 5.4 | B- | 25/100 |
| 29594 (Tatum) | 112 | 100.0% | 1,000 Mbps | 7.6 | B+ | 21/100 |
Who is the Fastest Internet Provider in Marlboro County?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by T-Mobile Home Internet. On the other hand, based on data provided by the internet providers to the FCC, Spectrum 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 Marlboro County
| Sandhill Telephone Cooperative | 1,000 |
|---|---|
| Spectrum | 1,000 |
| Verizon | 300 |
| Viasat | 100 |
| T-Mobile Home Internet | 100 |
| AT&T | 100 |
| EarthLink | 100 |
| HughesNet | 25 |
| River Street Networks | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Marlboro County. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Marlboro County Internet Providers
Based on 95 reviews from South Carolina internet customers, Verizon is the best internet service provider for Marlboro County residents. Verizon was rated at an average of 4.36 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 69.1% coverage in Marlboro County.
At a national level, based on 4176 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 Marlboro County Internet Providers
The table below shows average customer ratings from customers in Marlboro County, South Carolina, and customers throughout the country.
| ISP / Tech Type | Marlboro County Overall | South Carolina Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (0) |  (11) |  (816) | View Plans | ||
| T-Mobile Home Internet | (0) | (5) | (342) | View Plans | ||
| EarthLink | (0) |  (1) | (15) | View Plans | ||
| Sandhill Telephone Cooperative | (0) | (1) | (1) | View Plans | ||
| AT&T | (0) | (22) | (1051) | View Plans | ||
| Spectrum | (0) | (55) | (1949) | View Plans | ||
| HughesNet | (0) | (0) |  (25) | View Plans | ||
| River Street | (0) | (0) |  (2) | View Plans | ||
| Viasat | (0) | (0) |  (12) | View Plans |
Customer Ratings for Internet Provider Speeds in Marlboro County
Based on data reported by Marlboro County ISPs to the FCC, the fastest speeds in the county are available through Spectrum. The company offers speeds up to 1,000 Mbps in Marlboro County. Therefore, the average customer can get up to 1,000 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
However, actual customers rated their satisfaction with internet speed highest with T-Mobile Home Internet. This indicates T-Mobile Home Internet reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Marlboro County Speed | South Carolina Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet | (0) | (5) | (342) | View Plans | ||
| Verizon | (0) | (11) | (816) | View Plans | ||
| EarthLink | (0) | (1) | (15) | View Plans | ||
| Sandhill Telephone Cooperative | (0) | (1) | (1) | View Plans | ||
| Spectrum | (0) | (55) | (1949) | View Plans | ||
| AT&T | (0) | (22) | (1051) | View Plans | ||
| River Street | (0) | (0) | (2) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Who is the Cheapest Internet Provider in Marlboro County?
Of the providers in Marlboro County, customers rate T-Mobile Home Internet the best for price. Data comes from customers rating their satisfaction with pricing: in Marlboro 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.
T-Mobile Home Internet is rated 4.00 out of 5 for price, which is higher than the average across all internet providers in the country. EarthLink is rated second for affordability, with an average price rating of 4.00 out of 5.
The table below shows how customers in Marlboro County, South Carolina, and the United States rated the affordability of their internet service.
Rated Affordability in Marlboro County
| ISP / Tech Type | Marlboro County Affordability | South Carolina Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| T-Mobile Home Internet | (0) | (5) | (342) | View Plans | ||
| Verizon | (0) | (11) | (816) | View Plans | ||
| EarthLink | (0) | (1) | (15) | View Plans | ||
| Sandhill Telephone Cooperative | (0) | (1) | (1) | View Plans | ||
| AT&T | (0) | (22) | (1051) | View Plans | ||
| Spectrum | (0) | (55) | (1949) | View Plans | ||
| HughesNet | (0) | (0) | (25) | View Plans | ||
| River Street | (0) | (0) | (2) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Fiber, 5G, Cable and DSL Internet in Marlboro County
Which Fiber Internet Providers are Available in Marlboro County?
Spectrum Fiber in Marlboro County, SC
Availability:
90.3%
Customer Rating:
(207)
Avg. Download Speed
1,000 Mbps
Spectrum offers Fiber service to 90.3% of Marlboro County homes. Across the county, Spectrum Fiber is the only type of service available from the company, with speeds up to 1,000 Mbps
Sandhill Telephone Cooperative Fiber in Marlboro County, SC
Availability:
71.9%
Customer Rating:
(0)
Avg. Download Speed
1,000 Mbps
Sandhill Telephone Cooperative offers Fiber service to 71.9% of Marlboro County homes. Across the county, Sandhill Telephone Cooperative Fiber has speeds up to 1,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Marlboro County?
River Street Fixed Wireless in Marlboro County, SC
Availability:
90.8%
Customer Rating:
(1)
Avg. Download Speed
24 Mbps
River Street Networks offers Fixed Wireless service to 90.8% of Marlboro County homes. Across the county, River Street Fixed Wireless is the only type of service available from the company, with speeds up to 24 Mbps, with speeds from 10 Mpbs up to 25 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 3.0, with an average of 2.9 Mbps throughout the county.
Verizon Fixed Wireless in Marlboro County, SC
Availability:
80.5%
Customer Rating:
(362)
Avg. Download Speed
148 Mbps
Verizon offers Fixed Wireless service to 80.5% of Marlboro County homes. Across the county, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 148 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 12 Mbps throughout the county.
T-Mobile Home Internet Fixed Wireless in Marlboro County, SC
Availability:
72.9%
Customer Rating:
(342)
Avg. Download Speed
59 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 72.9% of Marlboro 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 59 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 11 Mbps throughout the county.
EarthLink Fixed Wireless in Marlboro County, SC
Availability:
47.3%
Customer Rating:
(4)
Avg. Download Speed
36 Mbps
EarthLink offers Fixed Wireless service to 47.3% of Marlboro County homes. Across the county, EarthLink Fixed Wireless has speeds up to 36 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 5.4 Mbps throughout the county.
AT&T Fixed Wireless in Marlboro County, SC
Availability:
47.3%
Customer Rating:
(205)
Avg. Download Speed
36 Mbps
AT&T offers Fixed Wireless service to 47.3% of Marlboro County homes. Across the county, AT&T Fixed Wireless has speeds up to 36 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 5.4 Mbps throughout the county.
Which Cable Internet Providers are Available in Marlboro County?
Sandhill Telephone Cooperative Cable in Marlboro County, SC
Availability:
61.8%
Customer Rating:
(0)
Avg. Download Speed
250 Mbps
Sandhill Telephone Cooperative offers Cable service to 61.8% of Marlboro County homes. Across the county, Sandhill Telephone Cooperative Cable has speeds up to 250 Mbps
Which DSL Internet Providers are Available in Marlboro County?
EarthLink DSL in Marlboro County, SC
Availability:
47.8%
Customer Rating:
(5)
Avg. Download Speed
10 Mbps
EarthLink offers DSL service to 47.8% of Marlboro County homes. Across the county, EarthLink DSL has speeds up to 10 Mbps
AT&T DSL in Marlboro County, SC
Availability:
47.8%
Customer Rating:
(304)
Avg. Download Speed
10 Mbps
AT&T offers DSL service to 47.8% of Marlboro County homes. Across the county, AT&T DSL has speeds up to 10 Mbps
Customer Reviews for Internet Service Providers in South Carolina
Customer Reviews
Greg M.
CarolinaConnect Fiber
November 13, 2026 Rudest supervisor is Christy. We were told we had to use our previous equipment at our new address in the same zip code but only a soft start was needed because the previous owners of that residence, but Customer service and Christy said no. Said we must talk with Tech support. They said no. So, we'd have to schedule a date and wait hours for someone to show. Meanwhile I work from home and need the Internet to work. Christy then says IT can do it tomorrow at 8AM, but I have a 9 AM meeting I must make. She won't give us IT's number to arrange a better time, so we say we will have to look at other options. She then calls back wanting to cancel our current service now. Can you believe how rude and petty this woman is. We can't have another appointment for a soft start or new equipment installed at the new residence, so I can at least continue working in the meantime. If you treat all your customers this way. You deserve no customers.
ISPReports User
CarolinaConnect Fiber
August 14, 2026 not as good as 1 year ago. Has slowed down a bunch. Thinking about changing service
William
Comporium Cable
July 25, 2026 It goes out often. The router typically has to be reset multiple times and there are no other options available.
ISPReports User
Ripple Fiber
July 22, 2026 Several outages lately. It was down today but it is running slow. I put in a ticket and the speed of the response will determine wether I go back to Spectrum or not.
Lataysia R.
XFINITY Cable
June 12, 2026 The price of my family’s internet connection is really cheap. It is around $20 per month and we have been with this provider for at least 10 years. However, there has been a decline in the presence of this company and they appear to be losing lots of customers. There is always some WiFi connection issue almost everyday, but it is minor. My phone may lose connection but my MacBook, iPad, and TV is still connected. Overall, for the price and in comparison to other WiFi providers, I am overall satisfied with my internet.
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Which ISP Should You Choose in Marlboro 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 Marlboro County is Verizon.
- The fastest internet provider should be Spectrum. Considering speed for the money and reliability in speeds, T-Mobile Home Internet may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Marlboro County is T-Mobile Home Internet.
- Viasat, Sandhill Telephone Cooperative, and HughesNet has the broadest coverage in Marlboro County, available to 98.9% 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.