Polk County's estimated 2025 population is 33,022 with a growth rate of 0.37% in the past year according to the most recent United States census data. Polk County is the 37th largest county in Missouri. The 2010 population was 31,158 and has seen a growth of 5.98% since that time.
Data after 2023 is projected based on recent change
The racial composition of Polk County includes 92.96% White, and smaller percentages for Black or African American, Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 29,850 | 92.96% |
| Two or more races | 1,471 | 4.58% |
| Black or African American | 262 | 0.82% |
| Asian | 255 | 0.79% |
| Other race | 153 | 0.48% |
| Native American | 110 | 0.34% |
| Native Hawaiian or Pacific Islander | 8 | 0.02% |
Married
Widowed
Divorced
Separated
Never Married
Polk County's average per capita income is $40,635. Household income levels show a median of $56,686. The poverty rate stands at 17.88%.
Name | Median | Mean |
|---|---|---|
| Married Families | $78,093 | - |
| Families | $70,715 | $86,667 |
| Households | $56,686 | $73,323 |
| Non Families | $25,389 | $38,161 |
Average Income
Median Household Income
Poverty Rate
