Belle Fourche city, South Dakota
Official LSAD Designation: Belle Fourche city • Census GEOID: 4604380
• Butte County
Demographics & Population Profile
Population and demographics for Belle Fourche city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 5,791 | — | 2025 | Census |
| Median Age | 38.3 yrs | ±3.8 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 2,455 | ±162 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).