| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Sparta | 1 | 1,937 | 1,831 | 0.99% | 825 | 2 | Town |
Sparta is the largest city in Alleghany County, with a population of 1,937.
Sparta is the smallest city in Alleghany County, with a population of 1,937.
There is 1 city in Alleghany County, North Carolina.