8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Newberry | 1 | 10,985 | 10,687 | 0.55% | 1,222 | 9 | City |
| Whitmire | 2 | 1,444 | 1,393 | 0.7% | 1,155 | 1 | Town |
| Prosperity | 3 | 1,236 | 1,175 | 0.98% | 627 | 2 | Town |
| Helena | 4 | 605 | 665 | 7.08% | 427 | 1 | CDP |
| Little Mountain | 5 | 262 | 251 | 0.77% | 172 | 2 | Town |
| Silverstreet | 6 | 169 | 161 | 1.2% | 50 | 3 | Town |
| Pomaria | 7 | 131 | 128 | 0.77% | 125 | 1 | Town |
| Peak | 8 | 56 | 51 | 1.82% | 163 | 0 | Town |
Newberry is the largest city in Newberry County, with a population of 10,985.
Peak is the smallest city in Newberry County, with a population of 56.
There are 8 cities in Newberry County, South Carolina.