| Place Name | Knife River |
| Place Type | Unincorporated |
| ZIP Code(s) | 59262 |
| County | Richland County |
| Area Code(s) | 406 |
| Timezone | Mountain Daylight Time (MDT) |
| Population () | |
| US Congressional District(s) | Montana 2nd |
| State House Districts | 35 |
| State Senate Districts | 18 |