1 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Shelton | 1 | 10,887 | 10,436 | 0.69% | 1,684 | 6 | City |
Shelton is the largest city in Mason County, with a population of 10,887.
Shelton is the smallest city in Mason County, with a population of 10,887.
There is 1 city in Mason County, Washington.