| Place Name | San Antonio |
| Place Type | Census Designated Place |
| ZIP Code(s) | 87832 |
| County | Socorro County |
| Area Code(s) | 575 |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2022) | 38 |
| Population Growth Rate (2010-19) | -31.52% |
| Majority Ethnicity | Hispanic 0% |
| US Congressional District(s) | New Mexico 2nd |
| State House Districts | 49 |
| State Senate Districts | 28 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 50% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 50% |