Mason County's estimated 2026 population is 72,571 with a growth rate of 1.98% in the past year according to the most recent United States census data. Mason County is the 20th largest county in Washington. The 2010 population was 60,733 and has seen a growth of 19.49% since that time.
Data after 2023 is projected based on recent change
Overall: 44.7 years
Female: 46.2 years
Male: 43.2 years
There are 54,709 adults, (16,468 of whom are seniors) in Mason County.
Female: 32,665 (48%)
Male: 35,317 (52%)
The racial composition of Mason County includes 76.99% White, 7.31% other race, and smaller percentages for Native American, Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 52,340 | 76.99% |
| Two or more races | 7,594 | 11.17% |
| Other race | 4,968 | 7.31% |
| Native American | 1,578 | 2.32% |
| Black or African American | 709 | 1.04% |
| Asian | 665 | 0.98% |
| Native Hawaiian or Pacific Islander | 128 | 0.19% |
Mason County's average per capita income is $54,756. Household income levels show a median of $83,270. The poverty rate stands at 12.26%.
Name | Median | Mean |
|---|---|---|
| Married Families | $109,514 | - |
| Families | $99,838 | $115,582 |
| Households | $83,270 | $100,630 |
| Non Families | $47,444 | $63,517 |
Average Income
Median Household Income
Poverty Rate