| Place Name | Three Rivers |
| Place Type | City |
| ZIP Code(s) | 78071 |
| County | Live Oak County |
| Area Code(s) | 361 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 1,682 |
| Population Growth Rate (2010-19) | -20.24% |
| Majority Ethnicity | White 60.14% |
| US Congressional District(s) | Texas 15th |
| State House Districts | 31 |
| State Senate Districts | 21 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 60.14% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 39.86% |