
Shelton
- County:
- Mason County
- County Seat:
- Yes
- Area (mi²):
- 5.816
- State:
- Washington
Shelton is a city located in Mason County, Washington. Shelton has a 2025 population of 11,052. It is also the county seat of .Shelton is currently growing at a rate of 1.13% annually and its population has increased by 5.89% since the most recent census, which recorded a population of 10,437 in 2020.
The average household income in Shelton is $73,757 with a poverty rate of 23.35%. The median age in Shelton is 31.6 years: 28.1 years for males, and 33.4 years for females.