| Place Name | Harper |
| Place Type | Census Designated Place |
| ZIP Code(s) | 78631 |
| County | Gillespie County |
| Area Code(s) | 830 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 1,061 |
| Population Growth Rate (2010-19) | 11.74% |
| Majority Ethnicity | White 87.26% |
| Metro/Micro Stats Area | Fredericksburg, TX |
| US Congressional District(s) | Texas 21st |
| State House Districts | 73 |
| State Senate Districts | 24 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 87.26% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 12.74% |