How South Carolina compares
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📡 Most-used test servers
Internet providers measured in South Carolina, ranked by speed
Median real-world speeds for the 9 fixed home internet providers with at least 100 distinct connections in South Carolina, fastest first. These are the speeds their customers measured, not advertised plan speeds, and not a statement of who can be bought at a given address.
| # | Provider | Download | Upload | Latency | Connections |
|---|---|---|---|---|---|
| 1 | West Carolina | 236.6 | 147.6 | 16 ms | 100+ |
| 2 | HTC (Horry Telephone) | 219.7 | 145.9 | 30 ms | 100+ |
| 3 | CarolinaConnect | 203.4 | 162.9 | 27 ms | 100+ |
| 4 | Comporium | 199.4 | 52.3 | 24 ms | 250+ |
| 5 | Spectrum | 198.2 | 23.9 | 37 ms | 2.5k+ |
| 6 | Comcast | 165.3 | 42.7 | 28 ms | 250+ |
| 7 | Home Telephone | 147.6 | 107.4 | 26 ms | 100+ |
| 8 | AT&T | 134.5 | 68.3 | 35 ms | 1k+ |
| 9 | FTC (Farmers Telephone) | 57.0 | 56.5 | 22 ms | 100+ |
Measured in South Carolina and named rather than ranked: T-Mobile US, Verizon. In South Carolina each of these is the operator's mobile network rather than a wired home line, and a browser test cannot tell a phone from a 5G home gateway on the same network. Ranking them beside fibre and cable would compare two different products.
Also measured, with too few connections for a median we would stand behind: Lumos, Starlink.
Internet in South Carolina: what the data shows
In South Carolina, the median real-world download speed is 151.3 Mbps, 4% above the median published state of 145.6 Mbps, ranking #14 of the 39 states and districts with enough data to publish.
South Carolina is led by local operators rather than national brands: the four fastest providers here are all South Carolina companies, several of them member-owned cooperatives.
Uploads median 25.6 Mbps and latency 35 ms.
Mobile tests run about 1.1× faster than desktop, and mobile is 33% of tests.
Across the 9 fixed providers with enough connections to rank here, medians run from 236.6 Mbps (West Carolina) down to 57.0 Mbps (FTC (Farmers Telephone)), a 4.2× spread inside one state. Which network reaches an address matters more here than which state the address is in.
The South Carolina sample carries enough tests to name 13 providers, 23 counties and 30 cities and localities. Atlanta was its most-used test server, taking 71% of the tests among the five busiest.
Figures are medians of 10k+ browser-based tests from 5k+ distinct connections, first half of 2026. Each connection counts at most three times, third-party sources are capped, and datacenter networks are excluded, so one busy line cannot move a state. That makes these numbers a different series from the national figure on the United States page, and they are not directly comparable to it.
Where the South Carolina data comes from
23 counties with enough tests to name:
Show all 23 countiesShow fewer
30 cities and localities with enough tests to name:
Show all 30 cities and localitiesShow fewer
Counties, cities and localities are named, never numbered, and listed alphabetically. Speeds below state level are part of the licensed dataset.
Where South Carolina ranks
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Frequently asked questions
What is the average internet speed in South Carolina?
The median real-world download speed in South Carolina is 151.3 Mbps, with 25.6 Mbps upload and 35 ms latency, measured from 10k+ browser-based speed tests on SpeedOf.Me.
Where does South Carolina rank among US states?
South Carolina ranks #14 of the 39 states and districts we publish, 4% above the median published state. We publish a state only where at least 2,000 distinct connections back the number, so 12 of the 51 are not listed at all.
Why is this lower than the speed my provider advertises?
An advertised speed is the maximum the line can carry. This is a real-world measurement through a browser to neutral servers on the open internet, which is what a video call, a download or a game actually gets. Wi-Fi, the device and time of day all sit between the two.
Which internet provider is fastest in South Carolina?
Of the fixed home internet providers with at least 100 distinct connections in South Carolina, West Carolina has the highest median real-world download speed at 236.6 Mbps, ahead of HTC (Horry Telephone) at 219.7 Mbps. That is the median its customers measured here, not an advertised plan speed, and a provider is only as fast as the line that reaches your address.
Which internet providers were measured in South Carolina?
13 providers had enough tests in South Carolina to name: AT&T, CarolinaConnect, Comcast, Comporium, FTC (Farmers Telephone), Home Telephone, HTC (Horry Telephone), Lumos, Spectrum, Starlink, T-Mobile US, Verizon, West Carolina. 9 of them carry a ranked median speed on this page: the rest are either a carrier's mobile network in South Carolina rather than a wired home line, or below the 100 distinct connections we require before publishing a median. That list is not a market-share estimate or a statement of who can be bought at a given address.
Are speeds on phones lower than on computers in South Carolina?
Tests run on phones and tablets, over home Wi-Fi or a cellular connection, are 33% of the South Carolina sample and median 166.0 Mbps. Tests run on desktops and laptops, which are almost always on a fixed line's Wi-Fi, median 145.4 Mbps. This is a device comparison, not a comparison of providers.
How current is this data?
It covers first half of 2026 and was last updated on 2026-09-05. The dataset is free to reuse with attribution under CC BY 4.0.
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