There are 23 cities in Charleston County, South Carolina.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Charleston | 1 | South Carolina | 156,868 | 150,872 | 0.97% | 1,363 | 115.05 |
| North Charleston | 2 | South Carolina | 123,441 | 115,551 | 1.62% | 1,590 | 77.63 |
| Mount Pleasant | 3 | South Carolina | 96,567 | 91,225 | 1.4% | 1,945 | 49.65 |
| Summerville | 4 | South Carolina | 52,145 | 51,101 | 0.5% | 2,313 | 22.55 |
| Goose Creek | 5 | South Carolina | 50,248 | 46,250 | 2.03% | 1,184 | 42.44 |
| Hanahan | 6 | South Carolina | 22,187 | 20,622 | 1.79% | 2,099 | 10.57 |
| Ladson | 7 | South Carolina | 15,344 | 15,252 | 0.15% | 2,182 | 7.03 |
| James Island | 8 | South Carolina | 11,984 | 11,658 | 0.68% | 2,526 | 4.74 |
| Sangaree | 9 | South Carolina | 8,111 | 9,249 | -3.38% | 3,994 | 2.03 |
| Hollywood | 10 | South Carolina | 5,494 | 5,297 | 0.9% | 234 | 23.51 |
| Isle Palms | 11 | South Carolina | 4,377 | 4,348 | 0.16% | 987 | 4.44 |
| Ravenel | 12 | South Carolina | 2,671 | 2,553 | 1.1% | 203 | 13.18 |
| Seabrook Island | 13 | South Carolina | 2,119 | 2,055 | 0.76% | 357 | 5.94 |
| Folly Beach | 14 | South Carolina | 2,084 | 2,079 | 0.05% | 167 | 12.51 |
| Kiawah Island | 15 | South Carolina | 1,962 | 2,014 | -0.66% | 176 | 11.17 |
| Sullivan's Island | 16 | South Carolina | 1,930 | 1,898 | 0.42% | 773 | 2.50 |
| Awendaw | 17 | South Carolina | 1,465 | 1,409 | 0.97% | 84 | 17.35 |
| Meggett | 18 | South Carolina | 1,443 | 1,394 | 0.84% | 80 | 18.14 |
| Lincolnville | 19 | South Carolina | 1,198 | 1,154 | 0.93% | 998 | 1.20 |
| Edisto Beach | 20 | South Carolina | 1,055 | 1,029 | 0.57% | 495 | 2.13 |
| Adams Run | 21 | South Carolina | 685 | 772 | 21.02% | 487 | 1.41 |
| McClellanville | 22 | South Carolina | 622 | 606 | 0.65% | 279 | 2.23 |
| Rockville | 23 | South Carolina | 138 | 136 | 0% | 325 | 0.42 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Charleston is the largest city in Charleston County.
Rockville is the smallest city in Charleston County.
There are 23 cities in Charleston County, South Carolina.