Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Martin Branch | Stream | | Chesterfield | 34 42 51 N | 080 16 13 W |
| Martin Cemetery | Cemetery | 289 | Cherokee | 35 07 35 N | 081 47 26 W |
| Martin Cemetery | Cemetery | 155 | Edgefield | 33 44 56 N | 082 02 54 W |
| Martin Cemetery | Cemetery | 21 | Horry | 34 04 36 N | 079 07 03 W |
| Martin Cemetery | Cemetery | 201 | Laurens | 34 38 36 N | 082 01 47 W |
| Martin Cemetery | Cemetery | 35 | Orangeburg | 33 24 48 N | 080 31 04 W |
| Martin Cemetery | Cemetery | 84 | Orangeburg | 33 29 11 N | 081 13 43 W |
| Martin Corner | Populated Place | 18 | Williamsburg | 33 24 35 N | 079 42 25 W |
| Martin Creek | Stream | | Berkeley | 32 54 02 N | 079 53 26 W |
| Martin Creek | Stream | | Greenville | 34 34 16 N | 082 14 27 W |
| Martin Creek | Stream | | Oconee | 34 38 11 N | 082 51 39 W |
| Martin Crossroads | Populated Place | 214 | Laurens | 34 37 45 N | 082 01 49 W |
| Martin Duck Pond | Reservoir | 8 | Horry | 33 47 19 N | 079 09 53 W |
| Martin Duck Pond Dam D-3630 | Dam | 8 | Horry | 33 47 19 N | 079 09 53 W |
| Martin Ford | Crossing | 227 | Anderson | 34 40 03 N | 082 27 56 W |
| Martin Grove Church | Church | 355 | Pickens | 34 54 25 N | 082 48 03 W |
| Martin Hall | Building | 216 | Pickens | 34 40 42 N | 082 50 09 W |
| Martin Junior High School Maple Campus | School | 34 | Dillon | 34 24 45 N | 079 22 56 W |
| Martin Lake | Reservoir | 183 | Cherokee | 34 58 46 N | 081 39 24 W |
| Martin Lake | Reservoir | 88 | Chesterfield | 34 33 13 N | 080 12 57 W |
| Martin Pond | Reservoir | 250 | Greenville | 34 42 06 N | 082 14 41 W |
| Martin Pond | Reservoir | 83 | Lexington | 33 59 13 N | 081 07 43 W |
| Martin Pond Dam D-2906 | Dam | 250 | Greenville | 34 42 06 N | 082 14 41 W |
| Martin Pond Dam D-3178 | Dam | 135 | Chesterfield | 34 42 43 N | 080 16 53 W |
| Martin School (historical) | School | 72 | Allendale | 33 03 31 N | 081 27 47 W |
| Martin School (historical) | School | 354 | Pickens | 34 53 25 N | 082 47 55 W |
| Martin Spring Run | Stream | | Allendale | 32 53 59 N | 081 27 51 W |
| Martin Subdivision | Populated Place | 43 | Sumter | 33 52 53 N | 080 20 47 W |
| Martin Town School (historical) | School | 53 | Lee | 34 03 36 N | 080 17 58 W |
| Martin-Millett Community Center | Building | 47 | Allendale | 33 05 36 N | 081 31 27 W |
| Martindale | Populated Place | 216 | Oconee | 34 38 58 N | 082 53 50 W |
| Martins Branch | Stream | | Dillon | 34 31 35 N | 079 23 51 W |
| Martins Chapel School | School | 30 | Horry | 34 13 10 N | 079 04 32 W |
| Martins Crossroads | Populated Place | 26 | Williamsburg | 33 41 60 N | 079 57 26 W |
| Martins Fishing Pond | Reservoir | 8 | Horry | 33 47 13 N | 079 10 35 W |
| Martins Grove Cemetery | Cemetery | 355 | Pickens | 34 54 25 N | 082 48 05 W |
| Martins Hospital (historical) | Hospital | 30 | Marion | 34 12 27 N | 079 15 14 W |
| Martins Industry Shoal | Bar | -2 | Beaufort | 32 06 33 N | 080 34 19 W |
| Martins Lake | Lake | 17 | Clarendon | 33 41 33 N | 080 01 16 W |
| Martins Lake | Reservoir | 88 | Chesterfield | 34 33 13 N | 080 12 53 W |
| Martins Landing | Populated Place | 2 | Charleston | 32 50 37 N | 080 23 39 W |
| Martins Landing | Populated Place | 9 | Hampton | 32 39 03 N | 081 23 34 W |
| Martins Last Pond | Reservoir | 211 | Laurens | 34 38 12 N | 082 04 59 W |
| Martins Last Pond Dam D-2967 | Dam | 211 | Laurens | 34 38 12 N | 082 04 59 W |
| Martins Mill (historical) | Locale | 212 | Spartanburg | 34 59 46 N | 081 52 20 W |
| Martins Park | Park | 5 | Charleston | 32 47 59 N | 079 56 21 W |
| Martins Point | Cape | 6 | Charleston | 32 40 35 N | 080 14 18 W |
| Martins Point Landing | Populated Place | 3 | Charleston | 32 53 46 N | 079 50 19 W |
| Martins Pond D-1471 Dam | Dam | 158 | Newberry | 34 15 42 N | 081 44 47 W |
| Martintown Plaza Shopping Center | Locale | 94 | Aiken | 33 29 55 N | 081 57 28 W |
| Martintowne (subdivision) | Populated Place | 107 | Aiken | 33 31 25 N | 081 58 24 W |
| Marvin Adams Pond | Reservoir | 55 | Marlboro | 34 40 43 N | 079 36 59 W |
| Marvin Post Office (historical) | Post Office | 216 | Anderson | 34 23 57 N | 082 33 17 W |
| Mary | Populated Place | 11 | Horry | 33 52 25 N | 079 06 18 W |
| Mary Ann Church | Church | 9 | Berkeley | 32 53 17 N | 079 55 46 W |
| Mary Anne Branch | Stream | | Berkeley | 33 11 35 N | 079 54 11 W |
| Mary Bramlett Elementary School | School | 230 | Cherokee | 35 04 34 N | 081 38 10 W |
| Mary Branch | Stream | | Horry | 33 53 02 N | 079 04 41 W |
| Mary Field Cemetery | Cemetery | 2 | Beaufort | 32 06 56 N | 080 53 11 W |
| Mary Field School | School | 4 | Beaufort | 32 06 17 N | 080 52 40 W |
| Mary Ford Elementary School | School | 7 | Charleston | 32 50 56 N | 079 58 41 W |
| Mary H Wright Elementary School | School | 215 | Spartanburg | 34 56 04 N | 081 55 36 W |
| Mary Island | Island | 3 | Charleston | 32 51 24 N | 079 42 56 W |
| Mary Lees Pond | Reservoir | 67 | Lee | 34 12 43 N | 080 16 59 W |
| Mary School (historical) | School | 22 | Williamsburg | 33 43 50 N | 079 54 34 W |
| Mary Shane Memorial Grade School | School | 204 | Laurens | 34 27 57 N | 081 52 54 W |
| Marydell (historical) | Populated Place | 321 | Greenville | 35 03 13 N | 082 25 38 W |
| Marys Cemetery | Cemetery | 55 | Lee | 34 09 59 N | 080 14 12 W |
| Marys Church | Church | 26 | Colleton | 32 49 50 N | 080 51 20 W |
| Marysville | Populated Place | 6 | Georgetown | 33 25 40 N | 079 09 04 W |
| Marysville Church | Church | 7 | Georgetown | 33 25 18 N | 079 10 32 W |
| Marysville School (historical) | School | 7 | Georgetown | 33 24 21 N | 079 11 52 W |
| Maryville | Populated Place | 1 | Charleston | 32 47 33 N | 079 59 42 W |
| Maryville | Populated Place | 6 | Georgetown | 33 20 34 N | 079 17 48 W |
| Maryville | Populated Place | 199 | Spartanburg | 34 54 59 N | 081 45 24 W |
| Maryville Elementary School | School | 4 | Georgetown | 33 20 31 N | 079 17 35 W |
| Maryville Park | Park | 3 | Georgetown | 33 20 31 N | 079 17 32 W |
| Maryville Plantaion (historical) | Locale | 3 | Georgetown | 33 20 59 N | 079 17 35 W |
| Mas Old Field Landing | Populated Place | 12 | Colleton | 33 03 16 N | 080 26 58 W |
| Mascot | Populated Place | 313 | Spartanburg | 35 04 13 N | 082 07 45 W |
| Mash Branch | Stream | | Chesterfield | 34 36 45 N | 080 05 09 W |
| Mash Branch | Stream | | Chesterfield | 34 41 09 N | 080 06 26 W |
| Mash Lake | Lake | 11 | Horry | 34 09 08 N | 079 11 43 W |
| Mashawville School | School | 13 | Colleton | 32 51 37 N | 080 36 05 W |
| Mason Branch | Stream | | Aiken | 33 40 36 N | 081 43 45 W |
| Mason Estates | Populated Place | 275 | Spartanburg | 35 03 12 N | 081 57 37 W |
| Masonic Shopping Center | Locale | 73 | Aiken | 33 33 52 N | 081 48 24 W |
| Masons Cross Road | Populated Place | 244 | Anderson | 34 33 26 N | 082 46 30 W |
| Masons Ferry (historical) | Crossing | 173 | York | 35 05 16 N | 081 03 21 W |
| Masons Store (historical) | Locale | 217 | Cherokee | 35 00 58 N | 081 34 39 W |
| Massadonia Baptist Church (historical) | Church | 223 | Cherokee | 35 07 18 N | 081 30 40 W |
| Massey School (historical) | School | 200 | York | 34 59 35 N | 080 55 03 W |
| Masseys Mill (historical) | Locale | 126 | Lancaster | 34 36 53 N | 080 53 09 W |
| Masters Southern Baptist Church | Church | 124 | Newberry | 34 30 04 N | 081 36 49 W |
| Matassee (historical) | Populated Place | 19 | Berkeley | 33 24 04 N | 079 51 56 W |
| Mateeba Gardens | Park | 11 | Dorchester | 32 55 37 N | 080 10 02 W |
| Mathais Crossroads | Populated Place | 165 | Edgefield | 33 53 29 N | 081 52 09 W |
| Mather School | School | 8 | Beaufort | 32 25 13 N | 080 41 17 W |
| Matheson Memorial Library | Building | 51 | Chesterfield | 34 41 51 N | 079 53 03 W |
| Mathesons Mill (historical) | Locale | 26 | Marlboro | 34 35 11 N | 079 46 11 W |
| Mathesons Millpond | Lake | 26 | Marlboro | 34 35 11 N | 079 46 04 W |
| Mathews Cemetery | Cemetery | 189 | Greenwood | 34 09 44 N | 082 09 05 W |
| Mathews Creek | Gut | 5 | Charleston | 33 04 09 N | 079 28 06 W |
| Mathews Cut | Channel | 11 | Charleston | 33 04 25 N | 079 28 07 W |
| Mathews Heights | Populated Place | 186 | Greenwood | 34 08 40 N | 082 08 02 W |
| Mathews Hill Church | Church | 17 | Williamsburg | 33 46 53 N | 079 25 26 W |
| Mathews Primary School | School | 187 | Greenwood | 34 09 37 N | 082 08 47 W |
| Mathews United Methodist Church | Church | 190 | Greenwood | 34 09 32 N | 082 08 49 W |
| Mathews Village | Populated Place | 189 | Greenwood | 34 09 56 N | 082 08 56 W |
| Mathis (historical) | Populated Place | 76 | Allendale | 33 04 56 N | 081 19 44 W |