South Carolina is a fiber-up-and-comer that still runs on cable. Spectrum blankets about 92% of the Palmetto State with gigabit cable, but the real momentum in 2026 is fiber: AT&T Fiber, Lumos, and Frontier are racing to wire the Upstate and Midlands, while local favorites like Comporium and the FTC co-op serve their home counties. The state's aggressive ARPA spending already closed most of its gap, shrinking its BEAD need dramatically.
Providers by Region
South Carolina splits into three broadband personality zones. The Lowcountry (Charleston, Myrtle Beach, Hilton Head) is a cable stronghold — Spectrum and Xfinity dominate the coast, though AT&T Fiber has pushed into Mount Pleasant and Summerville. The Midlands (Columbia, Lexington, Aiken) is the most fiber-dense region: Columbia is one of the most competitive fiber markets in the South, with AT&T Fiber and Lumos both offering multi-gigabit. The Upstate (Greenville, Spartanburg, Rock Hill) blends Spectrum cable with Frontier and Comporium fiber.
| Provider | Starting Price | Max Speed | SC Footprint |
|---|---|---|---|
| Spectrum | $30/mo (100 Mbps) | 1 Gbps | ~92% of state |
| AT&T Fiber | $55/mo (300 Mbps) | 5 Gbps | 42.1% of state |
| Lumos Fiber | $40/mo | 5 Gbps | 18%+ (Midlands) |
| Frontier Fiber | $44.99/mo | 5 Gbps | 12% (Upstate) |
| Comporium | $50/mo | 1 Gbps | York/Lancaster counties |
| FTC (co-op) | $69.95/mo | 1 Gbps | Rural fiber co-op |
City-by-City: Columbia vs the Upstate
Columbia is the standout — multiple gigabit fiber providers (AT&T, Lumos) compete block by block, pushing real prices below the $71 average. Charleston is cable-heavy but AT&T Fiber is expanding in Mount Pleasant and Summerville. Greenville and Spartanburg mix Spectrum with Frontier and Comporium fiber. Myrtle Beach leans on Spectrum/Xfinity. In small towns like Scranton, the FTC co-op covers 89% with local fiber — proof that member-owned providers often beat national cable on price and service.
South Carolina Broadband Office and BEAD
The South Carolina Broadband Office (created in 2021, within the Office of Regulatory Staff) oversees a $400 million ARPA investment plus $551.5 million in BEAD funding. Remarkably, South Carolina's careful ARPA execution already connected most of its 300,000+ original unserved locations, so it cut its BEAD spend to about $35.8 million — fewer than 1% of locations now need BEAD. Projects with ZiTEL, TruVista, AT&T, Comcast, Spectrum, and Starlink are signed and building. South Carolina has no state net-neutrality law; the Office of Regulatory Staff handles consumer affairs.
Low-Income Internet in South Carolina
- Federal Lifeline — up to $9.25/mo discount; apply via the National Verifier
- Spectrum Internet Assist — $25/mo for 50 Mbps (SNAP, SSI, NSLP)
- AT&T Access — from $30/mo for 100 Mbps where available
- Comporium / FTC co-op — local low-cost plans in their service areas