Sinai town, South Dakota
Official LSAD Designation: Sinai town • Census GEOID: 4658900
• Brookings County
Demographics & Population Profile
Population and demographics for Sinai town.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 102 | — | 2025 | Census |
| Median Age | 24.9 yrs | ±22.6 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 75 | ±38 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).