Polk County's estimated 2026 population is 18,882 with a growth rate of 1.46% in the past year according to the most recent United States census data. Polk County is the 70th largest county in Tennessee. The 2010 population was 16,813 and has seen a growth of 12.31% since that time.
Data after 2023 is projected based on recent change
The racial composition of Polk County includes 90.92% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
White (90.92%)
Two or more races (7.29%)
Black or African American (0.81%)
Other race (0.58%)
Asian (0.29%)
Native American (0.1%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 16,094 | 90.92% |
| Two or more races | 1,291 | 7.29% |
| Black or African American | 144 | 0.81% |
| Other race | 103 | 0.58% |
| Asian | 52 | 0.29% |
| Native American | 18 | 0.1% |
Married
Widowed
Divorced
Separated
Never Married
Polk County's average per capita income is $42,415. Household income levels show a median of $60,227. The poverty rate stands at 13.34%.
Name | Median | Mean |
|---|---|---|
| Married Families | $81,753 | - |
| Families | $77,435 | $99,747 |
| Households | $60,227 | $81,605 |
| Non Families | $25,568 | $39,761 |
Average Income
Median Household Income
Poverty Rate
