Demographics & People — Sullivan's Island, South Carolina
Population Overview
| Population (Census) | 2,127 |
|---|
| Estimated 2026 | ~2,000 |
|---|
| Median Age | 52.5 |
|---|
| Total Households | 817 |
|---|
| Family Households | 563 |
|---|
| Average Household Size | 2.6 |
|---|
| Diversity Index | 0.0472 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 2,103 |
|---|
| Black or African American | 0 |
|---|
| Asian | 8 |
|---|
| Hispanic or Latino | 44 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| English | 609 |
| American | 363 |
| Irish | 335 |
| Unclassified or not reported | 264 |
| Other groups | 223 |
| German | 220 |
| Italian | 121 |
| Welsh | 114 |
| French (except Basque) | 100 |
| Scottish | 80 |
Language
| English Only | 2,026 |
|---|
| Spanish | 22 |
|---|
| Population 5+ | 2,085 |
|---|
Veterans
| Veterans | 131 |
|---|
| Population 18+ | 1,890 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Sullivan's Island, South Carolina.
