9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Point Pleasant | 1 | 3,803 | 4,065 | -1.35% | 1,574 | 2.42 | City |
| New Haven | 2 | 1,382 | 1,471 | -1.29% | 1,255 | 1.10 | Town |
| Mason | 3 | 818 | 857 | -0.97% | 1,403 | 0.58 | Town |
| Clifton | 4 | 622 | 386 | 7.06% | 2,430 | 0.26 | CDP |
| Gallipolis Ferry | 5 | 500 | 559 | -4.03% | 220 | 2.27 | CDP |
| Hartford City | 6 | 486 | 506 | -0.82% | 393 | 1.24 | Town |
| Henderson | 7 | 217 | 227 | -0.91% | 519 | 0.42 | Town |
| Apple Grove | 8 | 143 | 151 | -2.72% | 62 | 2.30 | CDP |
| Leon | 9 | 125 | 135 | -1.57% | 391 | 0.32 | Town |
Point Pleasant is the largest city in Mason County, with a population of 3,803.
Leon is the smallest city in Mason County.
There are 9 cities in Mason County, West Virginia.