2 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Petersburg | 1 | 2,265 | 2,300 | -0.26% | 1,402 | 2 | City |
| Bayard | 2 | 206 | 217 | -0.96% | 662 | 0 | Town |
Petersburg is the largest city in Grant County, with a population of 2,265.
Bayard is the smallest city in Grant County, with a population of 206.
There are 2 cities in Grant County, West Virginia.