Pennington borough, New Jersey
Official LSAD Designation: Pennington borough • Census GEOID: 3457600
• Mercer County
Demographics & Population Profile
Population and demographics for Pennington borough.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 2,889 | — | 2025 | Census |
| Median Age | 47.8 yrs | ±2 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 1,152 | ±54 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).