Demographics & People — Irmo, South Carolina
Population Overview
| Population (Census) | 11,799 |
| Estimated 2026 | ~11,800 |
| Median Age | 40.3 |
| Total Households | 4,739 |
| Family Households | 3,345 |
| Average Household Size | 2.48 |
| Diversity Index | 0.4981 (moderately diverse) |
Race & Ethnicity
| White | 7,233 |
| Black or African American | 3,508 |
| Asian | 292 |
| Hispanic or Latino | 331 |
Heritage & Ancestry
| Group | Count |
| Other groups | 3,510 |
| Unclassified or not reported | 2,893 |
| German | 1,859 |
| Irish | 1,509 |
| English | 1,202 |
| American | 1,123 |
| Italian | 389 |
| European | 268 |
| Hispanic: Hispanic or Latino | 246 |
| French (except Basque) | 204 |
Language
| English Only | 10,485 |
| Spanish | 249 |
| Population 5+ | 11,271 |
Veterans
| Veterans | 850 |
| Population 18+ | 9,048 |
Commuting
| Mean Commute Time | 23.7 minutes |
| Work from Home | 14.6% |
| 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 Irmo, South Carolina.