Thief River Falls city, Minnesota
Official LSAD Designation: Thief River Falls city • Census GEOID: 2764570
• Pennington County
Demographics & Population Profile
Population and demographics for Thief River Falls city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 8,799 | — | 2025 | Census |
| Median Age | 37.8 yrs | ±1 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 4,198 | ±161 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).