Shiawassee County's 2026 population is estimated at 67,936, reflecting a -0.03% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Shiawassee County is the 29th largest county in Michigan. The 2010 population was 70,635 and has grown -3.82% since 2010.
Data after 2023 is projected based on recent change
Overall: 43.2 years
Female: 44.5 years
Male: 41.9 years
There are 53,921 adults, (13,473 of whom are seniors) in Shiawassee County.
Female: 34,101 (50.2%)
Male: 33,890 (49.8%)
The racial composition of Shiawassee County includes 94.08% White, and smaller percentages for other race, Asian, Black or African American, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 63,964 | 94.08% |
| Two or more races | 2,808 | 4.13% |
| Other race | 470 | 0.69% |
| Asian | 304 | 0.45% |
| Black or African American | 294 | 0.43% |
| Native American | 151 | 0.22% |
Shiawassee County 's average per capita income is $46,637. Household income levels show a median of $67,404. The poverty rate stands at 12.04%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $97,872 | $109,299 |
| Families | $84,405 | $100,215 |
| Households | $67,404 | $84,758 |
| Non Families | $39,975 | $51,213 |
Average Income
Median Household Income
Poverty Rate
