| Place Name | Harper Township |
| Place Type | Township |
| ZIP Code(s) | 58620 58651 |
| County | Slope County |
| Area Code(s) | 701 |
| Timezone | Mountain Standard Time (MST) |
| Population () | |
| US Congressional District(s) | North Dakota At-Large |
| State House Districts | 39 |
| State Senate Districts | 39 |