4 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Wheeling | 1 | 25,633 | 26,913 | -0.82% | 1,885 | 14 | City |
| West Liberty | 2 | 1,426 | 1,450 | -0.28% | 1,306 | 1 | Town |
| Triadelphia | 3 | 651 | 684 | -0.76% | 967 | 1 | Town |
| Valley Grove | 4 | 266 | 281 | -0.75% | 486 | 1 | Village |
Wheeling is the largest city in Ohio County, with a population of 25,633.
Valley Grove is the smallest city in Ohio County, with a population of 266.
There are 4 cities in Ohio County, West Virginia.