| Place Name | Weir |
| Place Type | City |
| ZIP Code(s) | 78626 |
| County | Williamson County |
| Area Code(s) | 512,737 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 538 |
| Population Growth Rate (2010-19) | 55.33% |
| Majority Ethnicity | White 70.38% |
| Metro/Micro Stats Area | Austin-Round Rock-Georgetown, TX |
| US Congressional District(s) | Texas 31st |
| State House Districts | 20 |
| State Senate Districts | 5 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 70.38% |
| African American | 0.6% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 29.03% |