5 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Moundsville | 1 | 7,502 | 8,057 | -1.46% | 2,581 | 2.91 | City |
| McMechen | 2 | 1,561 | 1,691 | -1.64% | 2,734 | 0.57 | City |
| Glen Dale | 3 | 1,382 | 1,489 | -1.5% | 1,626 | 0.85 | City |
| Benwood | 4 | 1,153 | 1,247 | -1.62% | 888 | 1.30 | City |
| Cameron | 5 | 796 | 858 | -1.49% | 927 | 0.86 | City |
Moundsville is the largest city in Marshall County, with a population of 7,502.
Cameron is the smallest city in Marshall County.
There are 5 cities in Marshall County, West Virginia.