| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Charles Town | 1 | 9,914 | 6,529 | 6.27% | 1,690 | 6 | City |
| Ranson corporation | 2 | 6,994 | 5,477 | 2.06% | 863 | 8 | Corporation |
| Shepherdstown | 3 | 1,521 | 1,532 | -0.07% | 3,793 | 0 | Town |
| Bolivar | 4 | 971 | 1,037 | -1.22% | 2,242 | 0 | Town |
| Harpers Ferry | 5 | 264 | 271 | -0.75% | 493 | 1 | Town |
Charles Town is the largest city in Jefferson County, with a population of 9,914.
Harpers Ferry is the smallest city in Jefferson County, with a population of 264.
There are 5 cities in Jefferson County, West Virginia.