Broadband High Speed Internet in South Carolina Largest Cities in South CarolinaProvidersPossible Speeds (down/up)Streaming Score Aiken , SC162.00 Gbps / 1.00 Gbps34 Anderson , SC15240.00 Mbps / 240.00 Mbps41 Beaufort , SC142.00 Gbps / 100.00 Mbps31 ...