| Name | Williamson County |
| State | Texas |
| FIPS Code | 48491 |
| County Seat | Georgetown |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 701,640 |
| Population Growth Rate(2020-2024) | 13.2% |
| Majority Ethnicity | White 60.89% |
| Public School Majority Ethnicity | White 39% |
| Partisan Voting Index | Republican:+1 |
| Unemployment Rate (May 2026) | 3.8% |
| Sales Tax Rate (2025) | 8.25% |
| Area Code(s) | 512 / 737 / 254 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 60.89% |
| African American | 6.58% |
| Hispanic | 23.41% |
| Asian | 8.55% |
| Native American | 0.45% |
| Hawaiin/Pacific Islander | 0.11% |
| 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% |