| | East Hanover, NJ | Morristown, NJ | United States |
| Population | 11,128 | 20,003 | 329,725,481 |
| Female Population | 54.7% | 52.4% | 50.5% |
| Male Population | 45.3% | 47.6% | 49.5% |
| Median Age | 44.1 | 33.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 11,162 | 18,387 | 309,327,143 |
| Population - 2000 | 11,393 | 18,544 | 285,036,114 |
| Population - 1990 | 9,926 | 16,189 | 251,960,433 |
| Pop. 2000 to Now | -4.6% | 3.7% | 15.6% |
| Pop. 1990 to Now | 9.5% | 18.8% | 30.8% |
| space4 | | | |
| Population Density | 1,410.0 | 6,876.3 | 93.4 |
| Land Area | 7.9 | 2.9 | 3,531,905.4 |
| Water Area | 0.2 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | East Hanover, NJ | Morristown, NJ | United States |
| Age 0 to 4 | 6.8% | 5.4% | 5.9% |
| Age 5 to 9 | 2.9% | 3.0% | 6.1% |
| Age 10 to 14 | 4.8% | 4.6% | 6.6% |
| Age 15 to 17 | 3.7% | 2.5% | 3.9% |
| Age 18 to 20 | 4.5% | 3.6% | 4.0% |
| Age 21 to 24 | 6.3% | 5.9% | 5.2% |
| Age 25 to 34 | 7.9% | 26.8% | 13.8% |
| Age 35 to 44 | 14.0% | 13.3% | 12.9% |
| Age 45 to 54 | 11.2% | 9.2% | 12.6% |
| Age 55 to 59 | 6.9% | 6.4% | 6.7% |
| Age 60 to 64 | 8.0% | 5.8% | 6.3% |
| Age 65 to 74 | 11.8% | 7.9% | 9.6% |
| Age 75 to 84 | 7.3% | 3.4% | 4.5% |
| Age 85 and over | 3.7% | 2.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | East Hanover, NJ | Morristown, NJ | United States |
| White | 75.7% | 58.0% | 59.4% |
| Black | 0.9% | 7.2% | 12.2% |
| Asian | 9.2% | 4.8% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.1% | 0.0% | 0.4% |
| Two or More Races | 1.6% | 4.2% | 3.2% |
| Hispanic | 12.5% | 25.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | East Hanover, NJ | Morristown, NJ | United States |
| Married Population | 60.7% | 38.2% | 49.8% |
| Currently Married | 60.3% | 36.4% | 48.0% |
| Married but Separated | 0.5% | 1.9% | 1.8% |
| Single Population | 39.3% | 61.8% | 50.2% |
| Never Married | 25.8% | 50.5% | 33.8% |
| Divorced | 4.6% | 8.8% | 10.8% |
| Widowed | 8.8% | 2.5% | 5.6% |
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| Household Size | 2.93 | 2.20 | 2.60 |
| Households | 3,797 | 8,848 | 124,010,992 |
| Family Households | 3,112 | 4,077 | 80,755,759 |
| Married couple, w/children | 33.7% | 24.6% | 30.5% |
| Married couple, no children | 50.7% | 41.5% | 42.9% |
| Non Family Households | 685 | 4,771 | 43,255,233 |
| Single householder, w/children | 5.7% | 22.0% | 15.8% |
| Single householder, no children | 9.9% | 11.9% | 10.8% |