North Plainfield borough, New Jersey
Official LSAD Designation: North Plainfield borough • Census GEOID: 3453280
• Somerset County
Demographics & Population Profile
Population and demographics for North Plainfield borough.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 22,879 | — | 2025 | Census |
| Median Age | 36.2 yrs | ±2.4 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 7,832 | ±451 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).