8 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Charleston | 1 | 160,965 | 151,065 | 1.04% | 1,396 | 115 | City |
| North Charleston | 2 | 131,201 | 115,613 | 2.02% | 1,682 | 78 | City |
| Goose Creek | 3 | 52,398 | 46,260 | 1.99% | 1,205 | 43 | City |
| Hanahan | 4 | 22,684 | 20,580 | 1.57% | 2,159 | 11 | City |
| Moncks Corner | 5 | 20,817 | 13,443 | 6.27% | 1,819 | 11 | Town |
| St. Stephen | 6 | 1,602 | 1,571 | 0.31% | 619 | 3 | Town |
| Bonneau | 7 | 435 | 429 | 0.23% | 144 | 3 | Town |
| Jamestown | 8 | 73 | 72 | 0% | 120 | 1 | Town |
Charleston is the largest city in Berkeley County, with a population of 160,965.
Jamestown is the smallest city in Berkeley County, with a population of 73.
There are 8 cities in Berkeley County, South Carolina.