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 | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Hilton Head Island | 1 | 38,267 | 37,587 | 0.45% | 925 | 41.4 | Town |
| Bluffton | 2 | 37,544 | 28,338 | 6.53% | 720 | 52.1 | Town |
| Port Royal | 3 | 16,881 | 14,503 | 3.65% | 995 | 17.0 | Town |
| Beaufort | 4 | 13,935 | 13,594 | 0.61% | 570 | 24.4 | City |
| Burton | 5 | 7,708 | 8,779 | 0.69% | 923 | 8.4 | CDP |
| Laurel Bay | 6 | 5,450 | 6,388 | -0.58% | 1,309 | 4.2 | CDP |
| Shell Point | 7 | 1,974 | 2,991 | -1.3% | 492 | 4.0 | CDP |
| Seabrook | 8 | 1,268 | 1,456 | 7.64% | 230 | 5.5 | CDP |
| Dale | 9 | 1,116 | 699 | 7.62% | 470 | 2.4 | CDP |
| Fripp Island | 10 | 895 | 848 | 7.7% | 274 | 3.3 | CDP |
| Daufuskie Island | 11 | 664 | 485 | 7.79% | 68 | 9.8 | CDP |
| Sheldon | 12 | 512 | 501 | 7.56% | 117 | 4.4 | CDP |
| Harbor Island | 13 | 323 | 316 | 7.67% | 315 | 1.0 | CDP |
| Lobeco | 14 | 229 | 349 | 8.02% | 87 | 2.6 | CDP |
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.
Hilton Head Island is the largest city in Beaufort County.
Lobeco is the smallest city in Beaufort County.
There are 14 cities in Beaufort County, South Carolina.