Miami County's estimated 2025 population is 36,378 with a growth rate of 1.48% in the past year according to the most recent United States census data. Miami County is the 13th largest county in Kansas. The 2010 population was 32,882 and has seen a growth of 10.63% since that time.
Data after 2023 is projected based on recent change
The racial composition of Miami County includes 91.97% White, and smaller percentages for other race, Black or African American, Native American, Asian and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 31,845 | 91.97% |
| Two or more races | 1,524 | 4.4% |
| Other race | 412 | 1.19% |
| Black or African American | 395 | 1.14% |
| Native American | 256 | 0.74% |
| Asian | 193 | 0.56% |
Married
Widowed
Divorced
Separated
Never Married
Miami County's average per capita income is $56,338. Household income levels show a median of $88,000. The poverty rate stands at 6.67%.
Name | Median | Mean |
|---|---|---|
| Married Families | $120,226 | - |
| Families | $109,861 | $125,790 |
| Households | $88,000 | $106,267 |
| Non Families | $45,016 | $54,910 |
Average Income
Median Household Income
Poverty Rate
