New Underwood city, South Dakota
Official LSAD Designation: New Underwood city • Census GEOID: 4645060
• Pennington County
Demographics & Population Profile
Population and demographics for New Underwood city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 594 | — | 2025 | Census |
| Median Age | 46.6 yrs | ±16.2 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 151 | ±46 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).