Demographics & People — Martinsville, New Jersey
Population Overview
| Population (Census) | 12,016 |
| Estimated 2026 | ~10,600 |
| Median Age | 45.1 |
| Total Households | 4,189 |
| Family Households | 3,543 |
| Average Household Size | 2.83 |
| Diversity Index | 0.4114 (moderately diverse) |
Race & Ethnicity
| White | 8,674 |
| Black or African American | 349 |
| Asian | 1,581 |
| Hispanic or Latino | 966 |
Heritage & Ancestry
| Group | Count |
| Other groups | 2,960 |
| Italian | 2,751 |
| Irish | 2,028 |
| German | 1,662 |
| Unclassified or not reported | 1,527 |
| Polish | 1,154 |
| English | 1,088 |
| Hispanic: Hispanic or Latino | 721 |
| American | 462 |
| Portuguese | 347 |
Language
| English Only | 8,955 |
| Spanish | 552 |
| Population 5+ | 11,228 |
Veterans
| Veterans | 321 |
| Population 18+ | 9,537 |
Commuting
| Mean Commute Time | 34.0 minutes |
| Work from Home | 26.0% |
| 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 Martinsville, New Jersey.