| Name | DeKalb County |
| State | Tennessee |
| FIPS Code | 47041 |
| County Seat | Smithville |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 21,337 |
| Population Growth Rate(2020-2024) | 5.9% |
| Majority Ethnicity | White 89.31% |
| Public School Majority Ethnicity | White 79% |
| Partisan Voting Index | Strongly Republican:+31 |
| Unemployment Rate (May 2026) | 4.1% |
| Sales Tax Rate (2025) | 9.75% |
| Area Code(s) | 615 / 629 / 931 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 89.31% |
| African American | 1.85% |
| Hispanic | 7.59% |
| Asian | 0.82% |
| Native American | 0.44% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 79.34% |
| African American | 1.46% |
| Hispanic | 15.72% |
| Asian | 0.31% |
| Native American | 0.07% |
| Hawaiin/Pacific Islander | 0% |