Demographics & People — South Lancaster, Massachusetts
Population Overview
| Population (Census) | 1,991 |
| Estimated 2026 | ~2,700 |
| Median Age | 39.7 |
| Total Households | 780 |
| Family Households | 490 |
| Average Household Size | 2.55 |
| Diversity Index | N/A (N/A) |
Race & Ethnicity
| White | 1,756 |
| Black or African American | 17 |
| Asian | 0 |
| Hispanic or Latino | 218 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 744 |
| Other groups | 295 |
| French (except Basque) | 202 |
| Irish | 198 |
| Hispanic: Hispanic or Latino | 116 |
| English | 113 |
| Italian | 87 |
| German | 62 |
| Hispanic: Peruvian | 60 |
| Hispanic: South American | 60 |
Language
| English Only | 1,696 |
| Spanish | 186 |
| Population 5+ | 1,882 |
Veterans
| Veterans | 37 |
| Population 18+ | 1,297 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for South Lancaster, Massachusetts.