3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Hardeeville | 1 | 15,394 | 7,733 | 11.05% | 271 | 57 | City |
| Ridgeland | 2 | 3,741 | 3,753 | -0.08% | 77 | 48 | Town |
| Gillisonville | 3 | 399 | 70 | 7.26% | 338 | 1 | CDP |
Hardeeville is the largest city in Jasper County, with a population of 15,394.
Gillisonville is the smallest city in Jasper County, with a population of 399.
There are 3 cities in Jasper County, South Carolina.