| Name | Williamson County |
| State | Tennessee |
| FIPS Code | 47187 |
| County Seat | Franklin |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 184,225 |
| Population Growth Rate(2000-2022) | 35.23% |
| Majority Ethnicity | White 90.08% |
| Public School Majority Ethnicity | White 75% |
| Partisan Voting Index | Republican:+13 |
| Unemployment Rate (November 2024) | 2.8% |
| Area Code(s) | 615 / 629 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 90.08% |
| African American | 4.17% |
| Hispanic | 0.21% |
| Asian | 5.49% |
| Native American | 0.03% |
| Hawaiin/Pacific Islander | 0.03% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 74.83% |
| African American | 3.86% |
| Hispanic | 8.74% |
| Asian | 7.84% |
| Native American | 0.15% |
| Hawaiin/Pacific Islander | 0.08% |