| Official Zip Code Name | Gladstone |
| Zip Code State | New Jersey |
| Primary County: | Somerset |
| Area Code | 908 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 5 |
| Elevation Range | 439 ft. |
| Area | 3.106 Sqm. |
| Coordinates(Y,X) | 40.715468, -74.685409 |