Miami County's 2026 population is estimated at 35,885, reflecting a 0.38% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Miami County is the 44th largest county in Indiana. The 2010 population was 36,810 and has grown -2.51% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.5 years
Female: 43.7 years
Male: 39.8 years
There are 28,282 adults, (6,494 of whom are seniors) in Miami County.
Female: 16,231 (45.4%)
Male: 19,481 (54.6%)
The racial composition of Miami County includes 88.23% White, 3.75% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 31,507 | 88.23% |
| Two or more races | 1,999 | 5.6% |
| Black or African American | 1,338 | 3.75% |
| Other race | 457 | 1.28% |
| Asian | 228 | 0.64% |
| Native American | 98 | 0.27% |
| Native Hawaiian or Pacific Islander | 85 | 0.24% |
Miami County 's average per capita income is $41,488. Household income levels show a median of $61,139. The poverty rate stands at 15.11%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $83,828 | - |
| Families | $71,194 | $87,030 |
| Households | $61,139 | $77,345 |
| Non Families | $37,745 | $53,384 |
Average Income
Median Household Income
Poverty Rate
