Duncan town, South Carolina
Official LSAD Designation: Duncan town • Census GEOID: 4521265
• Spartanburg County
Demographics & Population Profile
Population and demographics for Duncan town.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 4,675 | — | 2025 | Census |
| Median Age | 34.4 yrs | ±2.6 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 1,868 | ±254 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).