Leonia borough, New Jersey
Official LSAD Designation: Leonia borough • Census GEOID: 3440020
• Bergen County
Demographics & Population Profile
Population and demographics for Leonia borough.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 9,441 | — | 2025 | Census |
| Median Age | 45.9 yrs | ±3.4 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 3,345 | ±341 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).