Site Navigation Alabama Florida Georgia Louisiana Mississippi North Carolina South Carolina Tennessee     South Carolina Gateway 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. Population Statistics State Population 4,625,364 Metropolitan Populations Columbia 767,598 Charleston, North Charleston, Summerville 664,607 Greenville, Mauldin, Easley 636,986 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 Other Statistics Capital: Columbia Nickname: Palmetto State Total Interstate Mileage: 863.8 Highest Point: Sassafras Mountain 3,560 feet Major League Sports Franchises None South Carolina City / Area Guides South Carolina Route Log S.C. Interstate Guides Interstate 20 Interstate 26 Interstate 77 Interstate 85 Interstate 95 Interstate 126 Interstate 185 Interstate 385 Interstate 520 Interstate 526 Interstate 585 Business Loop Interstate 85 S.C. U.S. Highway Guides U.S. Highway 17 U.S. Highway 25 U.S. Highway 29 U.S. Highway 76 U.S. Highway 123 U.S. Highway 178 U.S. Highway 276 S.C. State Highway Guides South Carolina 12 South Carolina 35 South Carolina 35 South Carolina 48 South Carolina 61 South Carolina 302 Other South Carolina Roads Miscellaneous Highway Photos Page Updated February 11, 2013.