Demographics & People — Mountain Lake, New Jersey
Population Overview
| Population (Census) | 566 |
|---|
| Estimated 2026 | ~600 |
|---|
| Median Age | 55.4 |
|---|
| Total Households | 247 |
|---|
| Family Households | 172 |
|---|
| Average Household Size | 2.29 |
|---|
| Diversity Index | 0.1871 (relatively homogeneous) |
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Race & Ethnicity
| White | 504 |
|---|
| Black or African American | 0 |
|---|
| Asian | 6 |
|---|
| Hispanic or Latino | 52 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| German | 206 |
| Irish | 134 |
| Italian | 118 |
| Unclassified or not reported | 82 |
| Other groups | 71 |
| English | 70 |
| Hispanic: Hispanic or Latino | 54 |
| Hispanic: Cuban | 28 |
| Hispanic: Mexican | 26 |
| Polish | 19 |
Language
| English Only | 485 |
|---|
| Spanish | 52 |
|---|
| Population 5+ | 550 |
|---|
Veterans
| Veterans | 40 |
|---|
| Population 18+ | 511 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Mountain Lake, New Jersey.
