Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Poplar Grove School (historical) | School | 132 | Abbeville | 34 05 48 N | 082 21 14 W |
| Poplar Grove School (historical) | School | 41 | Bamberg | 33 13 08 N | 080 58 36 W |
| Poplar Grove School (historical) | School | 162 | Union | 34 37 52 N | 081 32 26 W |
| Poplar Hill | Populated Place | 31 | Horry | 33 59 34 N | 079 05 56 W |
| Poplar Hill | Populated Place | 15 | Williamsburg | 33 43 37 N | 079 26 57 W |
| Poplar Hill Branch | Stream | | Williamsburg | 33 38 53 N | 079 27 34 W |
| Poplar Hill Cemetery | Cemetery | 11 | Williamsburg | 33 42 39 N | 079 26 58 W |
| Poplar Hill Church | Church | 30 | Berkeley | 33 15 21 N | 080 15 29 W |
| Poplar Hill Church | Church | 25 | Horry | 33 57 03 N | 079 03 34 W |
| Poplar Hill Church | Church | 12 | Williamsburg | 33 42 42 N | 079 27 01 W |
| Poplar Hill Church (historical) | Church | 200 | Chesterfield | 34 46 05 N | 080 25 51 W |
| Poplar Hill School | School | 29 | Horry | 33 58 55 N | 079 05 54 W |
| Poplar Hills Church | Church | 201 | Chesterfield | 34 46 47 N | 080 24 15 W |
| Poplar Hollow | Valley | | Pickens | 35 01 39 N | 082 46 47 W |
| Poplar Lake | Reservoir | 340 | Greenville | 35 05 28 N | 082 25 54 W |
| Poplar Lake | Reservoir | 164 | Union | 34 45 00 N | 081 37 14 W |
| Poplar Lake Dam D-2152 | Dam | 166 | Union | 34 45 00 N | 081 37 11 W |
| Poplar School | School | 19 | Horry | 33 56 37 N | 079 01 45 W |
| Poplar School (historical) | School | 12 | Horry | 33 51 14 N | 078 40 49 W |
| Poplar Spring | Populated Place | 82 | Orangeburg | 33 29 10 N | 080 56 51 W |
| Poplar Spring Cemetery | Cemetery | 200 | Anderson | 34 18 44 N | 082 45 00 W |
| Poplar Spring Church | Church | 200 | Anderson | 34 18 45 N | 082 44 58 W |
| Poplar Spring Church | Church | 121 | Edgefield | 33 42 48 N | 082 06 47 W |
| Poplar Spring School (historical) | School | 70 | Orangeburg | 33 29 15 N | 080 56 24 W |
| Poplar Spring School (historical) | School | 269 | Pickens | 34 44 18 N | 082 49 33 W |
| Poplar Springs | Populated Place | 204 | Laurens | 34 26 34 N | 082 12 47 W |
| Poplar Springs | Populated Place | 230 | Spartanburg | 34 51 57 N | 082 03 09 W |
| Poplar Springs Baptist Church | Church | 204 | Laurens | 34 26 20 N | 082 12 22 W |
| Poplar Springs Baptist Church | Church | 233 | Spartanburg | 34 52 01 N | 082 03 08 W |
| Poplar Springs Cemetery | Cemetery | 204 | Laurens | 34 26 17 N | 082 12 21 W |
| Poplar Springs Cemetery | Cemetery | 291 | Oconee | 34 43 01 N | 083 01 52 W |
| Poplar Springs Church | Church | 277 | Greenville | 34 45 38 N | 082 16 18 W |
| Poplar Springs Church | Church | 292 | Oconee | 34 43 05 N | 083 01 53 W |
| Poplar Springs Ridge | Populated Place | 273 | Oconee | 34 41 57 N | 083 01 50 W |
| Poplar Springs School | School | 153 | Lexington | 33 53 26 N | 081 28 14 W |
| Poplar Springs School (historical) | School | 267 | Anderson | 34 39 46 N | 082 35 03 W |
| Poplar Springs School (historical) | School | 108 | Edgefield | 33 41 58 N | 082 08 04 W |
| Poplar Springs School (historical) | School | 280 | Greenville | 34 46 42 N | 082 18 19 W |
| Poplar Springs School (historical) | School | 202 | Laurens | 34 26 20 N | 082 12 24 W |
| Poplar Springs School (historical) | School | 509 | Oconee | 34 49 07 N | 083 14 08 W |
| Poplar Springs School (historical) | School | 234 | Spartanburg | 34 52 01 N | 082 03 06 W |
| Poplar Swamp | Stream | | Horry | 33 56 14 N | 078 59 40 W |
| Poplar Training School (historical) | School | 11 | Horry | 33 51 16 N | 078 45 54 W |
| Poppenheim Crossing | Populated Place | 9 | Berkeley | 32 58 07 N | 080 00 06 W |
| Popperdam Creek | Stream | | Charleston | 32 53 18 N | 080 04 48 W |
| Poppy Square Shopping Center | Locale | 231 | Spartanburg | 34 58 13 N | 081 55 47 W |
| Popular Church | Church | 12 | Horry | 33 51 16 N | 078 46 05 W |
| Popular Hill School | School | 67 | Orangeburg | 33 25 35 N | 081 05 24 W |
| Popular Springs Church | Church | 221 | Laurens | 34 33 33 N | 082 00 25 W |
| Porcher Bluff | Populated Place | 2 | Charleston | 32 51 31 N | 079 45 50 W |
| Porcher Elementary School | School | 5 | Charleston | 33 00 09 N | 079 38 43 W |
| Porky Island | Island | 1 | Beaufort | 32 30 43 N | 080 41 56 W |
| Port Bass | Populated Place | 219 | Oconee | 34 30 48 N | 083 03 60 W |
| Port Creek | Stream | | Georgetown | 33 42 16 N | 079 16 09 W |
| Port Harrelson (historical) | Populated Place | 4 | Horry | 33 40 49 N | 079 07 09 W |
| Port Harrelson Ferry (historical) | Crossing | 1 | Horry | 33 39 51 N | 079 08 13 W |
| Port Hill | Populated Place | 12 | Georgetown | 33 42 59 N | 079 17 32 W |
| Port Hill Landing | Populated Place | 5 | Georgetown | 33 43 04 N | 079 17 14 W |
| Port Royal | Populated Place | 7 | Beaufort | 32 22 45 N | 080 41 33 W |
| Port Royal Baptist Church | Church | 7 | Beaufort | 32 23 18 N | 080 41 06 W |
| Port Royal Cemetery | Cemetery | 7 | Beaufort | 32 23 14 N | 080 41 38 W |
| Port Royal City Hall | Building | 7 | Beaufort | 32 22 46 N | 080 41 32 W |
| Port Royal Elementary School | School | 4 | Beaufort | 32 22 40 N | 080 41 32 W |
| Port Royal Ferry (historical) | Crossing | 0 | Beaufort | 32 32 26 N | 080 44 43 W |
| Port Royal Island | Island | 6 | Beaufort | 32 26 08 N | 080 44 19 W |
| Port Royal Landing | Populated Place | 6 | Beaufort | 32 23 48 N | 080 40 51 W |
| Port Royal Plantation | Populated Place | 3 | Beaufort | 32 13 15 N | 080 40 20 W |
| Port Royal Plaza Shopping Center | Locale | 3 | Beaufort | 32 12 53 N | 080 42 07 W |
| Port Royal Post Office | Post Office | 4 | Beaufort | 32 22 33 N | 080 41 32 W |
| Port Royal Reach | Channel | -3 | Beaufort | 32 22 06 N | 080 41 05 W |
| Port Royal Sound | Bay | 11 | Beaufort | 32 15 43 N | 080 40 41 W |
| Port Royal United Methodist Church | Church | 5 | Beaufort | 32 22 38 N | 080 41 36 W |
| Port Santorini | Populated Place | 271 | Oconee | 34 42 35 N | 082 58 19 W |
| Porter Academy | School | 5 | Charleston | 32 47 10 N | 079 56 53 W |
| Porter Branch | Stream | | Oconee | 34 42 36 N | 083 18 45 W |
| Porter Bridge | Bridge | 74 | Kershaw | 34 25 42 N | 080 27 10 W |
| Porter Cemetery | Cemetery | 7 | Jasper | 32 22 40 N | 081 07 20 W |
| Porter Cemetery | Cemetery | 82 | Kershaw | 34 08 13 N | 080 44 52 W |
| Porter Cemetery | Cemetery | 214 | Union | 34 49 49 N | 081 35 07 W |
| Porter Chapel | Church | 5 | Beaufort | 32 22 48 N | 080 41 11 W |
| Porter Chapel | Church | 326 | Pickens | 34 56 38 N | 082 43 48 W |
| Porter Gaud School | School | 3 | Charleston | 32 46 27 N | 079 57 51 W |
| Porter School (historical) | School | 6 | Beaufort | 32 25 09 N | 080 45 26 W |
| Porters Chapel Cemetery | Cemetery | 329 | Pickens | 34 56 35 N | 082 43 54 W |
| Portman Dam | Dam | 201 | Anderson | 34 31 54 N | 082 49 05 W |
| Portman Marina | Locale | 218 | Anderson | 34 31 29 N | 082 47 60 W |
| Portman Shoals | Bar | 201 | Anderson | 34 31 55 N | 082 49 04 W |
| Ports Creek | Stream | | Georgetown | 33 22 04 N | 079 21 06 W |
| Posey Creek | Stream | | Greenville | 35 10 24 N | 082 24 09 W |
| Posey Mountain | Summit | 807 | Greenville | 35 10 56 N | 082 25 14 W |
| Posser Tabernacle | Church | 20 | Florence | 33 53 53 N | 079 32 26 W |
| Possum Corner | Populated Place | 23 | Jasper | 32 41 04 N | 080 58 33 W |
| Possum Corner Bridge | Bridge | 7 | Hampton | 32 41 51 N | 080 57 56 W |
| Possum Eddy | Rapids | 29 | Aiken | 33 15 07 N | 081 49 01 W |
| Possum Town | Populated Place | 35 | Orangeburg | 33 23 20 N | 080 20 48 W |
| Possum Trot Golf Club | Locale | 10 | Horry | 33 49 24 N | 078 42 02 W |
| Post Foot | Locale | 6 | Georgetown | 33 31 05 N | 079 19 29 W |
| Post Foot Branch | Stream | | Georgetown | 33 30 33 N | 079 18 15 W |
| Post Foot Landing | Populated Place | 5 | Georgetown | 33 30 36 N | 079 18 03 W |
| Post Polo Ranch | Locale | 150 | Aiken | 33 32 37 N | 081 42 28 W |
| Poston | Populated Place | 21 | Florence | 33 52 26 N | 079 25 34 W |
| Poston Cemetery | Cemetery | 21 | Florence | 33 55 26 N | 079 33 32 W |
| Poston Crossroads | Populated Place | 20 | Florence | 33 54 17 N | 079 32 52 W |
| Poston Pond | Reservoir | 33 | Marlboro | 34 29 07 N | 079 39 11 W |
| Potato Creek | Stream | | Clarendon | 33 31 04 N | 080 12 58 W |
| Potato Creek Landing | Locale | 23 | Clarendon | 33 31 55 N | 080 16 11 W |
| Potato Ferry (historical) | Crossing | 6 | Georgetown | 33 29 14 N | 079 32 42 W |
| Potato Hill | Summit | 449 | Pickens | 34 56 54 N | 082 40 48 W |
| Potato Island | Island | 3 | Beaufort | 32 12 21 N | 080 51 20 W |
| Potatoe Bed Ferry Bridge | Bridge | 4 | Marion | 33 50 03 N | 079 15 06 W |