| Place Name | San Acacio |
| Place Type | Census Designated Place |
| ZIP Code(s) | 81151 |
| County | Costilla County |
| Area Code(s) | 719 |
| Timezone | Mountain Daylight Time (MDT) |
| Population (2022) | 41 |
| Population Growth Rate (2010-19) | 40.00% |
| Majority Ethnicity | White 80.95% |
| US Congressional District(s) | Colorado 3rd |
| State House Districts | 62 |
| State Senate Districts | 35 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 80.95% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 19.05% |