| Name | Williamson County |
| State | Texas |
| FIPS Code | 48491 |
| County Seat | Georgetown |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 426,296 |
| Population Growth Rate(2000-2022) | 44.08% |
| Majority Ethnicity | White 81.26% |
| Public School Majority Ethnicity | White 39% |
| Partisan Voting Index | Democratic:+1 |
| Unemployment Rate (November 2024) | 3.6% |
| Area Code(s) | 512 / 737 / 254 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 81.26% |
| African American | 8.13% |
| Hispanic | 0.51% |
| Asian | 9.8% |
| Native American | 0.15% |
| Hawaiin/Pacific Islander | 0.15% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 38.64% |
| African American | 7.68% |
| Hispanic | 35.63% |
| Asian | 12.29% |
| Native American | 0.33% |
| Hawaiin/Pacific Islander | 0.16% |