| Official Zip Code Name | Lake Hiawatha |
| Zip Code State | New Jersey |
| Primary County: | Morris |
| Area Code | 862 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 5 |
| Elevation Range | 210 ft. |
| Area | 1.27 Sqm. |
| Coordinates(Y,X) | 40.880790, -74.379406 |