Rhea County's 2026 population is estimated at 35,639, reflecting a 1.25% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Rhea County is the 45th largest county in Tennessee. The 2010 population was 31,860 and has grown 11.86% since 2010.
Data after 2023 is projected based on recent change
Overall: 42 years
Female: 43.9 years
Male: 40.7 years
There are 26,796 adults, (6,731 of whom are seniors) in Rhea County.
Female: 16,955 (49.9%)
Male: 17,037 (50.1%)
The racial composition of Rhea County includes 87.85% White, and smaller percentages for other race, Black or African American, Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 29,863 | 87.85% |
| Two or more races | 2,526 | 7.43% |
| Other race | 830 | 2.44% |
| Black or African American | 506 | 1.49% |
| Asian | 241 | 0.71% |
| Native American | 26 | 0.08% |
Rhea County 's average per capita income is $41,438. Household income levels show a median of $55,033. The poverty rate stands at 15.89%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $72,950 | - |
| Families | $62,955 | $87,022 |
| Households | $55,033 | $75,267 |
| Non Families | $32,443 | $43,842 |
Average Income
Median Household Income
Poverty Rate
