| Name | Mason County |
| State | Washington |
| FIPS Code | 53045 |
| County Seat | Shelton |
| Timezone | Pacific Daylight Time (PDT) |
| Population (2024) | 68,754 |
| Population Growth Rate(2020-2024) | 4.42% |
| Majority Ethnicity | White 82.67% |
| Public School Majority Ethnicity | White 56% |
| Partisan Voting Index | Republican:+2 |
| Unemployment Rate (May 2026) | 6.2% |
| Sales Tax Rate (2025) | 8.6% |
| Area Code(s) | 360 / 564 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 82.67% |
| African American | 1.09% |
| Hispanic | 12.81% |
| Asian | 1.07% |
| Native American | 2.06% |
| Hawaiin/Pacific Islander | 0.29% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 55.66% |
| African American | 0.74% |
| Hispanic | 31.9% |
| Asian | 0.68% |
| Native American | 3.1% |
| Hawaiin/Pacific Islander | 0.37% |