| Name | Decatur County |
| State | Tennessee |
| FIPS Code | 47039 |
| County Seat | Decaturville |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 11,709 |
| Population Growth Rate(2020-2024) | 2.33% |
| Majority Ethnicity | White 92.32% |
| Public School Majority Ethnicity | White 87% |
| Partisan Voting Index | Strongly Republican:+34 |
| Unemployment Rate (May 2026) | 5.2% |
| Sales Tax Rate (2025) | 9.5% |
| Area Code(s) | 731 / 931 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 92.32% |
| African American | 3.09% |
| Hispanic | 3.56% |
| Asian | 0.95% |
| Native American | 0.08% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 87.47% |
| African American | 2.3% |
| Hispanic | 5.77% |
| Asian | 1.25% |
| Native American | 0.46% |
| Hawaiin/Pacific Islander | 0.13% |