| Place Name | Round Rock |
| Place Type | City |
| ZIP Code(s) | 78664 78665 78681 |
| County | Williamson County |
| Area Code(s) | 512,737 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 100,764 |
| Population Growth Rate (2010-19) | 19.60% |
| Majority Ethnicity | White 59.44% |
| Metro/Micro Stats Area | Austin-Round Rock-Georgetown, TX |
| US Congressional District(s) | Texas 31st |
| State House Districts | 52,136 |
| State Senate Districts | 5 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 59.44% |
| African American | 9.56% |
| Hispanic | 0.28% |
| Asian | 6.1% |
| Native American | 0.21% |
| Hawaiin/Pacific Islander | 24.42% |