| Place Name | San Augustine |
| Place Type | City |
| ZIP Code(s) | 75972 |
| County | San Augustine County |
| Area Code(s) | 936 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 2,454 |
| Population Growth Rate (2010-19) | -8.92% |
| Majority Ethnicity | African American 52.76% |
| US Congressional District(s) | Texas 1st |
| State House Districts | 57 |
| State Senate Districts | 3 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 38.51% |
| African American | 52.76% |
| Hispanic | 0.53% |
| Asian | 0.21% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 8% |