Polk County's estimated 2026 population is 33,997 with a growth rate of 1.17% in the past year according to the most recent United States census data. Polk County is the 35th largest county in Missouri. The 2010 population was 31,158 and has seen a growth of 9.11% since that time.
Data after 2023 is projected based on recent change
Overall: 38.1 years
Female: 39.5 years
Male: 36.6 years
There are 24,849 adults, (5,931 of whom are seniors) in Polk County.
Female: 16,531 (51%)
Male: 15,913 (49%)
The racial composition of Polk County includes 91.76% White, and smaller percentages for other race, Asian, Black or African American, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 29,769 | 91.76% |
| Two or more races | 1,660 | 5.12% |
| Other race | 425 | 1.31% |
| Asian | 269 | 0.83% |
| Black or African American | 239 | 0.74% |
| Native American | 82 | 0.25% |
Polk County's average per capita income is $42,413. Household income levels show a median of $59,647. The poverty rate stands at 16.3%.
Name | Median | Mean |
|---|---|---|
| Married Families | $84,238 | - |
| Families | $76,145 | $96,414 |
| Households | $59,647 | $80,496 |
| Non Families | $26,602 | $41,901 |
Average Income
Median Household Income
Poverty Rate
