2 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Clifton Forge | 1 | 3,346 | 3,538 | -1.15% | 1,108 | 3 | Town |
| Iron Gate | 2 | 306 | 323 | -1.29% | 927 | 0 | Town |
Clifton Forge is the largest city in Alleghany County, with a population of 3,346.
Iron Gate is the smallest city in Alleghany County, with a population of 306.
There are 2 cities in Alleghany County, Virginia.