Demographics & People — Jefferson, South Carolina
Population Overview
| Population (Census) | 753 |
| Estimated 2026 | ~700 |
| Median Age | 34.3 |
| Total Households | 316 |
| Family Households | 211 |
| Average Household Size | 2.29 |
| Diversity Index | 0.468 (moderately diverse) |
Race & Ethnicity
| White | 488 |
| Black or African American | 245 |
| Asian | 0 |
| Hispanic or Latino | 16 |
Heritage & Ancestry
| Group | Count |
| Other groups | 310 |
| Unclassified or not reported | 296 |
| English | 80 |
| American | 61 |
| Irish | 39 |
| German | 38 |
| Scotch-Irish | 38 |
| Scottish | 28 |
| Hispanic: Hispanic or Latino | 11 |
| Italian | 10 |
Language
| English Only | 699 |
| Spanish | 0 |
| Population 5+ | 699 |
Veterans
| Veterans | 69 |
| Population 18+ | 616 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Jefferson, South Carolina.