2 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Blacksburg | 1 | 45,626 | 44,753 | 0.38% | 2,305 | 20 | Town |
| Christiansburg | 2 | 22,462 | 23,309 | -0.75% | 1,526 | 15 | Town |
Blacksburg is the largest city in Montgomery County, with a population of 45,626.
Christiansburg is the smallest city in Montgomery County, with a population of 22,462.
There are 2 cities in Montgomery County, Virginia.