| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Pearisburg | 1 | 2,863 | 2,916 | -0.35% | 897 | 3 | Town |
| Narrows | 2 | 2,028 | 2,089 | -0.39% | 1,601 | 1 | Town |
| Pembroke | 3 | 1,137 | 1,149 | -0.18% | 1,047 | 1 | Town |
| Rich Creek | 4 | 736 | 747 | -0.27% | 899 | 1 | Town |
| Glen Lyn | 5 | 91 | 95 | -1.09% | 149 | 1 | Town |
Pearisburg is the largest city in Giles County, with a population of 2,863.
Glen Lyn is the smallest city in Giles County, with a population of 91.
There are 5 cities in Giles County, Virginia.