Spearfish city, South Dakota
Official LSAD Designation: Spearfish city • Census GEOID: 4660020
• Lawrence County
Demographics & Population Profile
Population and demographics for Spearfish city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 14,154 | — | 2025 | Census |
| Median Age | 40 yrs | ±1.9 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 5,932 | ±251 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).