Washtenaw County's estimated 2026 population is 371,472 with a growth rate of 0.34% in the past year according to the most recent United States census data. Washtenaw County is the 6th largest county in Michigan. The 2010 population was 345,980 and has seen a growth of 7.37% since that time.
Data after 2023 is projected based on recent change
Overall: 35 years
Female: 36.1 years
Male: 34 years
There are 302,348 adults, (58,242 of whom are seniors) in Washtenaw County.
Female: 185,350 (50.1%)
Male: 184,472 (49.9%)
The racial composition of Washtenaw County includes 68.68% White, 11.47% Black or African American, 9.23% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 253,992 | 68.68% |
| Black or African American | 42,421 | 11.47% |
| Asian | 34,148 | 9.23% |
| Two or more races | 31,227 | 8.44% |
| Other race | 6,917 | 1.87% |
| Native American | 1,007 | 0.27% |
| Native Hawaiian or Pacific Islander | 110 | 0.03% |
Washtenaw County's average per capita income is $60,100. Household income levels show a median of $89,180. The poverty rate stands at 14.17%.
Name | Median | Mean |
|---|---|---|
| Married Families | $146,817 | $186,901 |
| Families | $126,625 | $164,196 |
| Households | $89,180 | $124,712 |
| Non Families | $52,056 | $71,797 |
Average Income
Median Household Income
Poverty Rate
