Smith County's 2026 population is estimated at 21,259, reflecting a 1.13% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Smith County is the 67th largest county in Tennessee. The 2010 population was 19,127 and has grown 11.15% since 2010.
Data after 2023 is projected based on recent change
Overall: 40.6 years
Female: 41.7 years
Male: 40 years
There are 15,823 adults, (3,399 of whom are seniors) in Smith County.
Female: 10,094 (49.5%)
Male: 10,295 (50.5%)
The racial composition of Smith County includes 90.31% White, and smaller percentages for Black or African American, other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 18,414 | 90.31% |
| Two or more races | 1,150 | 5.64% |
| Black or African American | 384 | 1.88% |
| Other race | 267 | 1.31% |
| Asian | 91 | 0.45% |
| Native American | 44 | 0.22% |
| Native Hawaiian or Pacific Islander | 39 | 0.19% |
Smith County 's average per capita income is $46,353. Household income levels show a median of $66,293. The poverty rate stands at 10.02%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $88,340 | - |
| Families | $81,498 | $97,029 |
| Households | $66,293 | $85,956 |
| Non Families | $42,126 | $53,324 |
Average Income
Median Household Income
Poverty Rate
