| Place Name | Thief River Falls |
| Place Type | City |
| ZIP Code(s) | 56701 |
| County | Pennington County |
| Area Code(s) | 218 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 8,584 |
| Population Growth Rate (2010-19) | 2.05% |
| Majority Ethnicity | White 90.57% |
| US Congressional District(s) | Minnesota 7th |
| State House Districts | 01A,01B |
| State Senate Districts | 1 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.57% |
| African American | 1.94% |
| Hispanic | 1.25% |
| Asian | 0.51% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 5.73% |