South Carolina - Criteria: A (event)
| Koon, John Jacob Calhoun, Farmstead |
| Kumler Hall |
| Lace House |
| Ladson Presbyterian Church |
| Lancaster Cotton Oil Company |
| Lancaster County Courthouse |
| Lancaster County Jail |
| Lancaster Downtown Historic District |
| Lancaster Presbyterian Church |
| Lander College Old Main Building |
| Landsford Canal |
| Laurelwood Cemetery |
| Laurens County Courthouse |
| Laurens Historic District |
| Lawson's Pond Plantation |
| Lawton Park and Pavilion |
| Lawton-Seabrook Cemetery |
| Lee County Courthouse |
| Leesville College Historic District |
| Legare-Morgan House |
| Lenoir Store |
| Lewisfield Plantation |
| Lewis Inn |
| Liberty Colored High School |
| Liberty Universalist Church and Feasterville Academy Historic District |
| Liberty Warehouse |
| Lide, Evan J., House |
| Lide, John W., House |
| Limestone Springs Historic District |
| Lincoln High School |
| Lindsay Cemetery |
| Little River Baptist Church |
| Loch Dhu |
| Long Cane Massacre Site |
| Long Creek Academy |
| Lookaway Hall |
| Lower Long Cane Associate Reformed Presbyterian Church |
| Lowman Hall, South Carolina State College |
| Lucas Family Cemetery |
| Lucas, Jonathan, House |
| Lutheran Theological Seminary Building: Beam Dormitory |
| Magnolia |
| Magnolia Cemetery |
| Magnolia Cemetery |
| Magnolia Cemetery |
| Manne Building |
| Manning Library |
| Mann-Simons Cottage |
| Mansfield Plantation |
| Manship Farmstead |
| Marion Historic District |
| Market Hall and Sheds |
| Marysville School |
| Mayesville Historic District |
| McClellanville Historic District |
| McCollum-Murray House |
| McCormick County Courthouse |
| McCormick Train Station |
| McCrady's Tavern and Long Room |
| McDowell Site |
| McLaurin-Roper-McColl Farmstead |
| McLeod Farmstead |
| McLeod Plantation |
| McMakin's Tavern |
| McMaster School |
| McPhail Angus Farm |
| Means House |
| Medway |
| Meetze, Maj. Henry A., House |
| Melrose Heights-Oak Lawn-Fairview Historic District |
| Memorial Hall |
| Midfield Plantation |
| Midway Plantation |
| Milldam Rice Mill and Rice Barn |
| Miller Brothers Cotton Warehouse |
| Millford Plantation |
| Mills Mill |
| Millwood |
| Monaghan Mill |
| Montgomery Building |
| Montgomery, E.W., Cotton Warehouse |
| Monticello Store and Post Office |
| Moon-Dominick House |
| Morris Island Lighthouse |
| Moultrieville Historic District |
| Mountain Shoals Plantation |
| Mount Carmel A.M.E. Zion Campground |
| Mount Carmel Historic District |
| Mount Hebron Temperance Hall |
| Mount Pleasant Historic District |
| Mount Prospect Baptist Church |
| Moving Star Hall |
| Mt. Olive Baptist Church |
| Mt. Pisgah A.M.E. Church |
| Mt. Zion Rosenwald School |
| Mulberry Chapel Methodist Church |
| Murrells Inlet Historic District |
| Musgrove's Mill Historic Battle Site |
| Music Hall Evangelical Lutheran Church |
| Myrtle Heights-Oak Park Historic District |
Data from United States Park Service and Wikidata
