List of Interstate Highways in South Carolina

Interstate Highways of South Carolina
Highway shields for Interstate 26, Interstate 385, and Interstate 85 Business Spur
System information
Maintained by SCDOT
Length:	862.60 mi (1,388.22 km)
Formed:	June 29, 1956 (1956-06-29)
Highway names
Interstates:	Interstate nn (I-nn)
Business Loop:	Interstate nn Business Loop (I-nn Bus.)
Business Spur:	Interstate nn Business Spur (I-nn Bus.)
System links
South Carolina State Highway System Interstate U.S. State Scenic

There are 11 Interstate Highways—5 primary and 6 auxiliary—that exist entirely or partially in the U.S. state of South Carolina. As of December 31, 2013, the state had a total of 850.80 miles (1,369.23 km) of interstate and 11.80 miles (18.99 km) of interstate business, all maintained by the South Carolina Department of Transportation (SCDOT).