South Carolina State Highway System
| Standard South Carolina route shields | |
| System information | |
|---|---|
| Length | 41,500 mi (66,800 km) |
| Notes | State roads maintained by the SCDOT |
| Highway names | |
| Interstates | Interstate X (I-X) |
| US Highways | U.S. Highway X (US X) |
| State | South Carolina Highway X (SC X) |
| System links | |
.svg){kind=link}
The South Carolina State Highway System is the fourth largest state-maintained system of state highways in the country. It consists of Interstates, U.S. highways, state highways, and secondary roads, totaling approximately 41,500 miles (66,800 km).