| Name | Smith County |
| State | Tennessee |
| FIPS Code | 47159 |
| County Seat | Carthage |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 20,545 |
| Population Growth Rate(2020-2024) | 3.1% |
| Majority Ethnicity | White 94.12% |
| Public School Majority Ethnicity | White 88% |
| Partisan Voting Index | Strongly Republican:+32 |
| Unemployment Rate (May 2026) | 3.5% |
| Sales Tax Rate (2025) | 9.75% |
| Area Code(s) | 615 / 629 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 94.12% |
| African American | 2.01% |
| Hispanic | 3.07% |
| Asian | 0.56% |
| Native American | 0.13% |
| Hawaiin/Pacific Islander | 0.1% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 87.78% |
| African American | 1.76% |
| Hispanic | 5.23% |
| Asian | 0.72% |
| Native American | 0.29% |
| Hawaiin/Pacific Islander | 0.07% |