2 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Clifton Forge | 1 | 3,308 | 3,538 | -1.14% | 1,095 | 3 | Town |
| Iron Gate | 2 | 303 | 323 | -0.98% | 918 | 0 | Town |
Clifton Forge is the largest city in Alleghany County, with a population of 3,308.
Iron Gate is the smallest city in Alleghany County, with a population of 303.
There are 2 cities in Alleghany County, Virginia.