Sitemap to all pages covering the state of South Carolina. Photography contributions by Alex Nitzman, Andy Field, Brent Ivy, Carter Buchanan and Robb Ellis. The author of the original South Carolina Highways and route log is Paul Chris Martin.

General Information

Highway Guides

Other Roads

About the South Carolina State Highway System

Many South Carolina 3-digit state highways derive their numbers from a parent route (U.S. Route or State Highway). The branch route numbering begins with the parent number followed by a suffix ranging between 0-9, or in the case of a one-digit route, 00-99. Examples include South Carolina 291 (29-1), which leads both north and south of U.S. 29 and South Carolina 760 (76-0), which spurs east from U.S. 76 & 378 to Fort Jackson in Columbia.

S.C. Highway Marker

South Carolina utilizes spur and connector routes for both U.S. and State Highways. These routes are generally unsigned and short in length. For instance U.S. 52 Spur, which appears on maps dating back to the 1960s in Charleston, is an unsigned spur connecting U.S. 52 with the Battery. Other examples include U.S. 25 & 276 Connector in Travelers Rest, which lines the former U.S. 25 between its bypass and U.S. 276 through downtown and South Carolina 16 Connector, which extends along Rosewood Drive to U.S. 76 & 376 (Garners Ferry Road) and S.C. 760 (Fort Jackson Boulevard) in Columbia.

SCDOT unveiled a new base for state highway markers in June 2007. The new shields include a silhouette of the state superimposed with the heritage symbols of the state, the sabal palmetto and crescent moon. New signs were grand fathered in during regularly scheduled replacement of existing signs.

Population Statistics

State Population
Metropolitan Populations
Columbia 767,598 Charleston,
North Charleston, Summerville
664,607 Greenville,
Mauldin, Easley
Spartanburg 284,307 Myrtle Beach,
North Myrtle Beach, Conway
269,291 Florence 205,566
Top County Populations
Greenville 451,225 Richland 384,504 Charleston 350,209
Spartanburg 284,307 Horry 269,291 Lexington 262,391
Top Incorporated Area Populations
Columbia 129,272 Charleston 120,083 North Charleston 97,471
Mount Pleasant 67,843 Rock Hill 66,154 Greenville 58,409
Summerville 43,392 Sumter 40,524 Hilton Head Island 37,099
Source: U.S. Census Bureau, 2010 Census Redistricting Data Summary File.
Table of United States Metropolitan Statistical Areas

About South Carolina

  • Capital: Columbia
  • Nickname: Palmetto State
  • Total Interstate Mileage: 850.80
  • Highest Point: Sassafras Mountain 3,560 feet

Major League Sports Franchises


Updated September 15, 2018.