Polk County's 2026 population is estimated at 19,322, reflecting a -0.29% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Polk County is the 34th largest county in Arkansas. The 2010 population was 20,669 and has grown -6.52% since 2010.
Data after 2023 is projected based on recent change
Overall: 44.3 years
Female: 44.8 years
Male: 43.2 years
There are 15,001 adults, (4,399 of whom are seniors) in Polk County.
Female: 10,013 (51.7%)
Male: 9,348 (48.3%)
The racial composition of Polk County includes 87.96% White, 3.56% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander, Black or African American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 17,029 | 87.96% |
| Two or more races | 1,414 | 7.3% |
| Other race | 689 | 3.56% |
| Native American | 154 | 0.8% |
| Native Hawaiian or Pacific Islander | 34 | 0.18% |
| Black or African American | 24 | 0.12% |
| Asian | 17 | 0.09% |
Polk County 's average per capita income is $36,101. Household income levels show a median of $49,191. The poverty rate stands at 15.89%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $71,611 | - |
| Families | $63,577 | $82,940 |
| Households | $49,191 | $67,957 |
| Non Families | $30,881 | $40,132 |
Average Income
Median Household Income
Poverty Rate
