9 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Anderson | 1 | 31,676 | 29,458 | 1.18% | 1,920 | 16 | City |
| Belton | 2 | 4,688 | 4,343 | 1.25% | 1,219 | 4 | City |
| Williamston | 3 | 4,399 | 4,056 | 1.31% | 1,142 | 4 | Town |
| Honea Path | 4 | 3,981 | 3,693 | 1.22% | 1,133 | 4 | Town |
| Pendleton | 5 | 3,797 | 3,497 | 1.33% | 774 | 5 | Town |
| Pelzer | 6 | 1,470 | 1,346 | 1.45% | 1,608 | 1 | Town |
| Iva | 7 | 1,222 | 1,128 | 1.33% | 1,193 | 1 | Town |
| West Pelzer | 8 | 1,055 | 971 | 1.34% | 1,752 | 1 | Town |
| Starr | 9 | 179 | 164 | 1.7% | 119 | 1 | Town |
Anderson is the largest city in Anderson County, with a population of 31,676.
Starr is the smallest city in Anderson County, with a population of 179.
There are 9 cities in Anderson County, South Carolina.