Miller County's 2026 population is estimated at 25,872, reflecting a 0.4% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Miller County is the 43rd largest county in Missouri. The 2010 population was 24,701 and has grown 4.74% since 2010.
Data after 2023 is projected based on recent change
Overall: 41.3 years
Female: 42.5 years
Male: 40.4 years
There are 19,400 adults, (5,072 of whom are seniors) in Miller County.
Female: 12,614 (49.9%)
Male: 12,655 (50.1%)
The racial composition of Miller County includes 94.18% White, and smaller percentages for Black or African American, other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 23,799 | 94.18% |
| Two or more races | 823 | 3.26% |
| Black or African American | 279 | 1.1% |
| Other race | 227 | 0.9% |
| Asian | 96 | 0.38% |
| Native American | 33 | 0.13% |
| Native Hawaiian or Pacific Islander | 12 | 0.05% |
Miller County 's average per capita income is $41,734. Household income levels show a median of $56,736. The poverty rate stands at 14.37%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $88,201 | - |
| Families | $78,097 | $93,257 |
| Households | $56,736 | $74,753 |
| Non Families | $31,199 | $40,303 |
Average Income
Median Household Income
Poverty Rate
