Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Oakdale Church | Church | 243 | Anderson | 34 31 56 N | 082 50 43 W |
| Oakdale Church | Church | 239 | Cherokee | 35 00 55 N | 081 46 24 W |
| Oakdale Church | Church | 256 | York | 35 06 39 N | 081 18 47 W |
| Oakdale Church | Church | 188 | York | 34 52 39 N | 081 03 04 W |
| Oakdale Church | Church | 184 | York | 34 52 44 N | 081 02 27 W |
| Oakdale Country Club | Locale | 42 | Florence | 34 10 45 N | 079 52 33 W |
| Oakdale Elementary School | School | 192 | York | 34 52 52 N | 081 02 37 W |
| Oakdale Estates | Populated Place | 21 | Dorchester | 32 59 46 N | 080 12 47 W |
| Oakdale Lake | Reservoir | 35 | Florence | 34 10 25 N | 079 52 41 W |
| Oakdale School | School | 23 | Clarendon | 33 43 43 N | 079 59 16 W |
| Oakdale School (historical) | School | 58 | Lexington | 33 54 36 N | 081 03 51 W |
| Oakdale School (historical) | School | 70 | Lexington | 33 55 11 N | 081 03 55 W |
| Oakey Bay | Populated Place | 10 | Horry | 33 50 38 N | 079 07 59 W |
| Oakey Point Cemetery | Cemetery | 28 | Dillon | 34 19 60 N | 079 24 44 W |
| Oakey Swamp | Stream | | Horry | 33 51 18 N | 079 05 47 W |
| Oakey Swamp Church | Church | 10 | Horry | 33 50 38 N | 079 07 58 W |
| Oakgrove | Populated Place | 6 | Charleston | 32 37 37 N | 080 12 46 W |
| Oakgrove School (historical) | School | 22 | Colleton | 32 55 25 N | 080 57 44 W |
| Oakhill School (historical) | School | 190 | Chester | 34 34 48 N | 081 14 56 W |
| Oakhurst | Populated Place | 205 | Lancaster | 34 34 49 N | 080 38 48 W |
| Oakhurst Church | Church | 194 | Lancaster | 34 35 10 N | 080 37 52 W |
| Oakhurst Island | Island | 2 | Colleton | 32 40 60 N | 080 25 20 W |
| Oakhurst Park | Park | 63 | Richland | 33 58 49 N | 081 00 22 W |
| Oakhurst School (historical) | School | 201 | Lancaster | 34 34 19 N | 080 38 45 W |
| Oakhurst School (historical) | School | 181 | Lancaster | 34 33 57 N | 080 37 19 W |
| Oakie Branch | Stream | | Berkeley | 33 05 30 N | 079 42 46 W |
| Oakie Branch | Stream | | Berkeley | 33 06 26 N | 079 44 59 W |
| Oakland | Populated Place | 7 | Charleston | 32 47 08 N | 080 02 06 W |
| Oakland | Populated Place | 103 | Sumter | 33 58 59 N | 080 29 18 W |
| Oakland Avenue Presbyterian Church | Church | 205 | York | 34 56 09 N | 081 01 40 W |
| Oakland Avenue School (historical) | School | 243 | Spartanburg | 34 57 12 N | 081 55 18 W |
| Oakland Baptist Church | Church | 199 | York | 34 56 46 N | 081 01 59 W |
| Oakland Cemetery | Cemetery | 3 | Beaufort | 32 24 29 N | 080 35 00 W |
| Oakland Cemetery | Cemetery | 250 | Cherokee | 35 03 35 N | 081 39 00 W |
| Oakland Cemetery | Cemetery | 103 | Chesterfield | 34 42 30 N | 080 06 43 W |
| Oakland Cemetery | Cemetery | 58 | Orangeburg | 33 22 20 N | 080 59 04 W |
| Oakland Church | Church | 104 | Chesterfield | 34 42 30 N | 080 06 39 W |
| Oakland Club | Locale | 20 | Berkeley | 33 27 11 N | 080 04 23 W |
| Oakland Crossroads | Populated Place | 47 | Dillon | 34 32 21 N | 079 21 58 W |
| Oakland Elementary School | School | 9 | Charleston | 32 47 13 N | 080 02 11 W |
| Oakland Elementary School | School | 98 | Sumter | 33 59 09 N | 080 29 29 W |
| Oakland Heights (subdivision) | Populated Place | 6 | Horry | 33 44 37 N | 078 49 49 W |
| Oakland Hunting Club (historical) | Locale | 5 | Charleston | 32 48 44 N | 080 06 23 W |
| Oakland Mill | Locale | 161 | Newberry | 34 17 22 N | 081 37 53 W |
| Oakland Plantation | Locale | 4 | Charleston | 32 51 46 N | 079 46 53 W |
| Oakland Plantation | Locale | 101 | Sumter | 33 59 21 N | 080 29 39 W |
| Oakland Pond | Reservoir | 91 | Sumter | 33 59 19 N | 080 30 05 W |
| Oakland Pond Dam D-1981 | Dam | 91 | Sumter | 33 59 19 N | 080 30 05 W |
| Oakland School | School | 101 | Orangeburg | 33 32 31 N | 081 15 19 W |
| Oakland School (historical) | School | 78 | Bamberg | 33 22 51 N | 081 10 55 W |
| Oakland School (historical) | School | 49 | Dillon | 34 32 19 N | 079 21 53 W |
| Oakland School (historical) | School | 298 | Spartanburg | 35 04 29 N | 082 01 35 W |
| Oakland United Methodist Church | Church | 48 | Dillon | 34 32 21 N | 079 21 55 W |
| Oakland United Methodist Church Cemetery | Cemetery | 49 | Dillon | 34 32 22 N | 079 21 53 W |
| Oaklawn | Populated Place | 54 | Sumter | 33 56 50 N | 080 20 44 W |
| Oaklawn Cemetery | Cemetery | 257 | Anderson | 34 33 30 N | 082 37 43 W |
| Oaklawn Cemetery | Cemetery | 150 | Fairfield | 34 22 52 N | 081 05 30 W |
| Oaklawn Correctional Center | Locale | 223 | Greenville | 34 39 31 N | 082 20 11 W |
| Oakley | Populated Place | 11 | Berkeley | 33 07 27 N | 080 01 08 W |
| Oakley Hall School | School | 192 | Chester | 34 45 04 N | 081 05 03 W |
| Oakley Lookout | Locale | 14 | Berkeley | 33 06 02 N | 080 01 06 W |
| Oakley School (historical) | School | 11 | Berkeley | 33 07 26 N | 080 01 07 W |
| Oakley Vocational Center | School | 12 | Berkeley | 33 06 10 N | 080 01 04 W |
| Oakman Branch School (historical) | School | 25 | Colleton | 33 03 12 N | 080 38 44 W |
| Oakman Church | Church | 24 | Colleton | 33 03 15 N | 080 38 49 W |
| Oakmont | Populated Place | 6 | Beaufort | 32 24 06 N | 080 46 04 W |
| Oakmont | Populated Place | 11 | Dorchester | 32 57 56 N | 080 08 40 W |
| Oakmont | Populated Place | 290 | Oconee | 34 46 48 N | 083 01 50 W |
| Oakmont | Populated Place | 69 | Orangeburg | 33 34 01 N | 080 57 07 W |
| Oakridge | Populated Place | 129 | Lexington | 33 55 01 N | 081 13 23 W |
| Oakridge School | School | 131 | Kershaw | 34 29 39 N | 080 32 36 W |
| Oaks Church | Church | 24 | Clarendon | 33 31 16 N | 080 23 58 W |
| Oaks County Club | Locale | 12 | Berkeley | 32 59 11 N | 080 02 13 W |
| Oaks Creek | Gut | 0 | Georgetown | 33 31 23 N | 079 03 11 W |
| Oaks Crossroads | Populated Place | 45 | Orangeburg | 33 27 31 N | 080 37 28 W |
| Oaks Island | Island | 1 | Georgetown | 33 31 04 N | 079 06 59 W |
| Oaks School (historical) | School | 24 | Clarendon | 33 31 25 N | 080 24 52 W |
| Oakview Airport | Airport | 321 | Pickens | 34 48 44 N | 082 49 08 W |
| Oakview Park | Populated Place | 1 | Charleston | 32 44 32 N | 079 58 57 W |
| Oakville School | School | 12 | Charleston | 32 42 12 N | 080 20 11 W |
| Oakville School | School | 150 | Lexington | 33 59 06 N | 081 25 36 W |
| Oakville School (historical) | School | 17 | Charleston | 32 42 57 N | 080 20 31 W |
| Oakway | Populated Place | 295 | Oconee | 34 36 04 N | 083 01 33 W |
| Oakway Cemetery | Cemetery | 293 | Oconee | 34 35 53 N | 083 00 45 W |
| Oakway Church | Church | 294 | Oconee | 34 35 55 N | 083 00 43 W |
| Oakway Elementary School | School | 297 | Oconee | 34 35 54 N | 083 01 36 W |
| Oakway Middle School | School | 295 | Oconee | 34 35 52 N | 083 01 36 W |
| Oakway School (historical) | School | 293 | Oconee | 34 34 48 N | 083 01 06 W |
| Oakwood | Populated Place | 137 | Aiken | 33 30 60 N | 081 35 10 W |
| Oakwood | Populated Place | 115 | Lexington | 33 58 36 N | 081 09 14 W |
| Oakwood | Populated Place | 266 | Spartanburg | 34 56 38 N | 082 12 09 W |
| Oakwood | Populated Place | 202 | York | 35 06 20 N | 081 03 47 W |
| Oakwood Acres (subdivision) | Populated Place | 177 | York | 34 58 17 N | 081 00 24 W |
| Oakwood Acres Park | Park | 187 | York | 34 58 01 N | 081 00 19 W |
| Oakwood Baptist Church | Church | 137 | Aiken | 33 30 59 N | 081 35 00 W |
| Oakwood Baptist Church | Church | 239 | Anderson | 34 30 46 N | 082 40 08 W |
| Oakwood Cemetery | Cemetery | 226 | Spartanburg | 34 57 37 N | 081 54 54 W |
| Oakwood Estates | Populated Place | 218 | Anderson | 34 33 30 N | 082 39 52 W |
| Oakwood Park | Populated Place | 5 | Beaufort | 32 25 16 N | 080 38 30 W |
| Oakwood School (historical) | School | 122 | Aiken | 33 31 44 N | 081 33 53 W |
| Oakwood-Windsor Elementary School | School | 131 | Aiken | 33 30 59 N | 081 34 29 W |
| Oatbed Creek | Stream | | Horry | 33 39 57 N | 079 04 06 W |
| Oatbed Island | Island | 0 | Horry | 33 39 54 N | 079 04 12 W |
| Oatland | Populated Place | 6 | Georgetown | 33 29 43 N | 079 20 50 W |
| Oatland Creek | Stream | | Georgetown | 33 29 36 N | 079 08 37 W |
| Oats | Populated Place | 58 | Darlington | 34 15 13 N | 080 04 39 W |
| Oats Church | Church | 55 | Darlington | 34 14 42 N | 080 04 22 W |
| Oats Hole | Swamp | 6 | Colleton | 32 55 07 N | 080 28 06 W |
| Oats School (historical) | School | 58 | Darlington | 34 15 15 N | 080 04 27 W |
| Oattaray School (historical) | School | 185 | Union | 34 42 50 N | 081 36 10 W |