1 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Sparta | 1 | 1,909 | 1,831 | 0.79% | 813 | 2 | Town |
Sparta is the largest city in Alleghany County, with a population of 1,909.
Sparta is the smallest city in Alleghany County, with a population of 1,909.
There is 1 city in Alleghany County, North Carolina.