| Name | Pennington County |
| State | Minnesota |
| FIPS Code | 27113 |
| County Seat | Thief River Falls |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 13,732 |
| Population Growth Rate(2020-2024) | -1.91% |
| Majority Ethnicity | White 92.26% |
| Public School Majority Ethnicity | White 83% |
| Partisan Voting Index | Republican:+15 |
| Unemployment Rate (May 2026) | 9.5% |
| Sales Tax Rate (2025) | 6.88% |
| Area Code(s) | 218 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 92.26% |
| African American | 1.18% |
| Hispanic | 4.84% |
| Asian | 1.26% |
| Native American | 0.47% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 83.47% |
| African American | 0.48% |
| Hispanic | 6.38% |
| Asian | 1.11% |
| Native American | 2.85% |
| Hawaiin/Pacific Islander | 0% |