Identifiers: city · town
| Rank | Community | Population |
|---|---|---|
| 1 | Charleston (city), SC | 150,227 |
| 2 | Mount Pleasant (town), SC | 90,801 |
| 3 | Hanahan (city), SC | 20,325 |
| 4 | James Island (town), SC | 11,621 |
| 5 | Isle of Palms (city), SC | 4,347 |
| 6 | Sullivan's Island (town), SC | 1,891 |
| 7 | Awendaw (town), SC | 1,399 |
Identifiers: city · town · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Charleston (city), SC | 150,227 |
| 2 | North Charleston (city), SC | 114,852 |
| 3 | Mount Pleasant (town), SC | 90,801 |
| 4 | Goose Creek (city), SC | 45,946 |
| 5 | Hanahan (city), SC | 20,325 |
| 6 | Ladson (CDP), SC | 15,550 |
| 7 | James Island (town), SC | 11,621 |
| 8 | Isle of Palms (city), SC | 4,347 |
| 9 | Sullivan's Island (town), SC | 1,891 |
| 10 | Awendaw (town), SC | 1,399 |