8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Newberry | 1 | 10,918 | 10,696 | 0.4% | 1,214 | 9 | City |
| Whitmire | 2 | 1,450 | 1,394 | 0.76% | 1,160 | 1 | Town |
| Prosperity | 3 | 1,258 | 1,187 | 1.13% | 638 | 2 | Town |
| Helena | 4 | 605 | 665 | 7.08% | 427 | 1 | CDP |
| Little Mountain | 5 | 264 | 251 | 0.76% | 174 | 2 | Town |
| Silverstreet | 6 | 170 | 162 | 0.59% | 51 | 3 | Town |
| Pomaria | 7 | 133 | 128 | 0.76% | 127 | 1 | Town |
| Peak | 8 | 54 | 51 | 0% | 157 | 0 | Town |
Newberry is the largest city in Newberry County, with a population of 10,918.
Peak is the smallest city in Newberry County, with a population of 54.
There are 8 cities in Newberry County, South Carolina.