Demographics & People — Middlesex, New Jersey
Population Overview
| Population (Census) | 14,518 |
| Estimated 2026 | ~14,900 |
| Median Age | 44.3 |
| Total Households | 5,567 |
| Family Households | 4,165 |
| Average Household Size | 2.6 |
| Diversity Index | 0.5922 (moderately diverse) |
Race & Ethnicity
| White | 8,814 |
| Black or African American | 1,034 |
| Asian | 1,692 |
| Hispanic or Latino | 3,821 |
Heritage & Ancestry
| Group | Count |
| Other groups | 5,562 |
| Hispanic: Hispanic or Latino | 3,873 |
| Italian | 2,957 |
| Irish | 2,671 |
| German | 1,736 |
| Unclassified or not reported | 1,734 |
| Hispanic: Puerto Rican | 1,315 |
| Hispanic: Central American | 1,132 |
| Hispanic: South American | 875 |
| Polish | 788 |
Language
| English Only | 8,998 |
| Spanish | 2,511 |
| Population 5+ | 13,702 |
Veterans
| Veterans | 464 |
| Population 18+ | 11,471 |
Commuting
| Mean Commute Time | 26.1 minutes |
| Work from Home | 9.4% |
| 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 Middlesex, New Jersey.