| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Rocky Mount | 1 | 4,993 | 4,906 | 0.4% | 731 | 7 | Town |
| Boones Mill | 2 | 259 | 256 | 0.39% | 350 | 1 | Town |
Rocky Mount is the largest city in Franklin County, with a population of 4,993.
Boones Mill is the smallest city in Franklin County, with a population of 259.
There are 2 cities in Franklin County, Virginia.