| Place Name | Harper |
| Place Type | City |
| ZIP Code(s) | 67058 |
| County | Harper County |
| Area Code(s) | 620 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 1,478 |
| Population Growth Rate (2010-19) | -10.86% |
| Majority Ethnicity | White 90.28% |
| US Congressional District(s) | Kansas 4th |
| State House Districts | 116 |
| State Senate Districts | 32 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.28% |
| African American | 0.49% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 1.07% |
| Hawaiin/Pacific Islander | 8.15% |