Sullivan's Island town, South Carolina
Official LSAD Designation: Sullivan's Island town • Census GEOID: 4570090
• Charleston County
Demographics & Population Profile
Population and demographics for Sullivan's Island town.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 1,961 | — | 2025 | Census |
| Median Age | 52.5 yrs | ±2.5 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 798 | ±114 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).