Unicoi County's 2026 population is estimated at 17,992, reflecting a 0.33% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Unicoi County is the 74th largest county in Tennessee. The 2010 population was 18,283 and has grown -1.59% since 2010.
Data after 2023 is projected based on recent change
Overall: 46.9 years
Female: 47 years
Male: 46.3 years
There are 14,587 adults, (4,216 of whom are seniors) in Unicoi County.
Female: 9,102 (51.3%)
Male: 8,654 (48.7%)
The racial composition of Unicoi County includes 90.89% White, and smaller percentages for Black or African American, other race, Native American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 16,139 | 90.89% |
| Two or more races | 1,329 | 7.48% |
| Black or African American | 120 | 0.68% |
| Other race | 100 | 0.56% |
| Native American | 43 | 0.24% |
| Asian | 25 | 0.14% |
Unicoi County 's average per capita income is $42,497. Household income levels show a median of $52,218. The poverty rate stands at 14.32%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $86,597 | - |
| Families | $69,077 | $86,733 |
| Households | $52,218 | $70,417 |
| Non Families | $32,341 | $37,439 |
Average Income
Median Household Income
Poverty Rate
