Demographics & People — Mount Hermon, New Jersey
Population Overview
| Population (Census) | 237 |
| Estimated 2026 | ~200 |
| Median Age | 59.0 |
| Total Households | 96 |
| Family Households | 76 |
| Average Household Size | 2.47 |
| Diversity Index | 0.2481 (somewhat diverse) |
Race & Ethnicity
| White | 207 |
| Black or African American | 28 |
| Asian | 0 |
| Hispanic or Latino | 6 |
Heritage & Ancestry
| Group | Count |
| German | 87 |
| French (except Basque) | 57 |
| Irish | 49 |
| Other groups | 34 |
| Hispanic: Hispanic or Latino | 32 |
| Italian | 28 |
| Unclassified or not reported | 24 |
| American | 23 |
| English | 22 |
| Hispanic: Cuban | 16 |
Language
| English Only | 231 |
| Spanish | 2 |
| Population 5+ | 233 |
Veterans
| Veterans | 26 |
| Population 18+ | 185 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Mount Hermon, New Jersey.