Delta County's 2026 population is estimated at 36,369, reflecting a -0.44% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Delta County is the 43rd largest county in Michigan. The 2010 population was 37,049 and has grown -1.84% since 2010.
Data after 2023 is projected based on recent change
Overall: 48 years
Female: 49.5 years
Male: 46.3 years
There are 29,776 adults, (9,658 of whom are seniors) in Delta County.
Female: 18,329 (49.8%)
Male: 18,484 (50.2%)
The racial composition of Delta County includes 90.39% White, and smaller percentages for Native American, Asian, other race, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 33,274 | 90.39% |
| Two or more races | 2,582 | 7.01% |
| Native American | 564 | 1.53% |
| Asian | 176 | 0.48% |
| Other race | 147 | 0.4% |
| Black or African American | 69 | 0.19% |
| Native Hawaiian or Pacific Islander | 1 | 0% |
Delta County 's average per capita income is $42,386. Household income levels show a median of $57,809. The poverty rate stands at 12.66%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $88,492 | - |
| Families | $78,563 | $103,746 |
| Households | $57,809 | $81,442 |
| Non Families | $30,362 | $41,829 |
Average Income
Median Household Income
Poverty Rate
