| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Point Pleasant | 1 | 3,827 | 4,050 | -1.09% | 1,584 | 2 | City |
| New Haven | 2 | 1,371 | 1,446 | -1.01% | 1,245 | 1 | Town |
| Mason | 3 | 826 | 856 | -0.72% | 1,417 | 1 | Town |
| Hartford City | 4 | 486 | 495 | -0.41% | 393 | 1 | Town |
| Henderson | 5 | 218 | 227 | -0.91% | 522 | 0 | Town |
| Leon | 6 | 127 | 136 | -1.55% | 397 | 0 | Town |
Point Pleasant is the largest city in Mason County, with a population of 3,827.
Leon is the smallest city in Mason County, with a population of 127.
There are 6 cities in Mason County, West Virginia.