| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Newberry | 1 | 10,944 | 10,704 | 0.49% | 1,189 | 9 | City |
| Whitmire | 2 | 1,489 | 1,406 | 0.95% | 1,191 | 1 | Town |
| Prosperity | 3 | 1,274 | 1,182 | 1.19% | 646 | 2 | Town |
| Little Mountain | 4 | 263 | 250 | 0.77% | 173 | 2 | Town |
| Silverstreet | 5 | 169 | 159 | 0.6% | 50 | 3 | Town |
| Pomaria | 6 | 137 | 128 | 0.74% | 131 | 1 | Town |
| Peak | 7 | 54 | 51 | 0% | 157 | 0 | Town |
Newberry is the largest city in Newberry County, with a population of 10,944.
Peak is the smallest city in Newberry County, with a population of 54.
There are 7 cities in Newberry County, South Carolina.