Demographics & People — Seneca, South Carolina
Population Overview
| Population (Census) | 8,910 |
| Estimated 2026 | ~9,200 |
| Median Age | 39.6 |
| Total Households | 3,995 |
| Family Households | 2,410 |
| Average Household Size | 2.2 |
| Diversity Index | 0.4303 (moderately diverse) |
Race & Ethnicity
| White | 6,402 |
| Black or African American | 1,650 |
| Asian | 58 |
| Hispanic or Latino | 698 |
Heritage & Ancestry
| Group | Count |
| Other groups | 2,536 |
| Unclassified or not reported | 2,100 |
| German | 1,400 |
| American | 1,129 |
| Irish | 1,057 |
| English | 683 |
| Hispanic: Hispanic or Latino | 676 |
| Italian | 493 |
| Greek | 453 |
| Scottish | 356 |
Language
| English Only | 7,935 |
| Spanish | 198 |
| Population 5+ | 8,185 |
Veterans
| Veterans | 506 |
| Population 18+ | 7,348 |
Commuting
| Mean Commute Time | 16.0 minutes |
| Work from Home | 4.4% |
| Commuter Profile | N/A |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Seneca, South Carolina.