Mason County's 2026 population is estimated at 28,881, reflecting a -0.37% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Mason County is the 50th largest county in Michigan. The 2010 population was 28,719 and has grown 0.56% since 2010.
Data after 2023 is projected based on recent change
Overall: 47.3 years
Female: 48.8 years
Male: 45.3 years
There are 23,493 adults, (7,689 of whom are seniors) in Mason County.
Female: 14,592 (50%)
Male: 14,615 (50%)
The racial composition of Mason County includes 91.58% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 26,749 | 91.58% |
| Two or more races | 1,540 | 5.27% |
| Other race | 354 | 1.21% |
| Black or African American | 279 | 0.96% |
| Asian | 145 | 0.5% |
| Native American | 140 | 0.48% |
Mason County 's average per capita income is $43,118. Household income levels show a median of $64,748. The poverty rate stands at 14.13%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $94,245 | $115,079 |
| Families | $84,396 | $103,452 |
| Households | $64,748 | $85,702 |
| Non Families | $35,840 | $49,291 |
Average Income
Median Household Income
Poverty Rate
