| | Closter, NJ | Rutherford, NJ | United States |
| Population | 8,573 | 18,781 | 329,725,481 |
| Female Population | 48.0% | 50.2% | 50.5% |
| Male Population | 52.0% | 49.8% | 49.5% |
| Median Age | 41.9 | 39.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 8,425 | 18,082 | 309,327,143 |
| Population - 2000 | 8,383 | 18,110 | 285,036,114 |
| Population - 1990 | 8,094 | 17,790 | 251,960,433 |
| Pop. 2000 to Now | 0.8% | 0.6% | 15.6% |
| Pop. 1990 to Now | 4.4% | 2.4% | 30.8% |
| space4 | | | |
| Population Density | 2,713.0 | 6,753.3 | 93.4 |
| Land Area | 3.2 | 2.8 | 3,531,905.4 |
| Water Area | 0.1 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Closter, NJ | Rutherford, NJ | United States |
| Age 0 to 4 | 6.1% | 4.8% | 5.9% |
| Age 5 to 9 | 8.3% | 4.9% | 6.1% |
| Age 10 to 14 | 7.1% | 6.4% | 6.6% |
| Age 15 to 17 | 5.2% | 4.3% | 3.9% |
| Age 18 to 20 | 2.2% | 5.3% | 4.0% |
| Age 21 to 24 | 3.8% | 4.7% | 5.2% |
| Age 25 to 34 | 11.0% | 11.8% | 13.8% |
| Age 35 to 44 | 11.9% | 15.1% | 12.9% |
| Age 45 to 54 | 12.8% | 16.0% | 12.6% |
| Age 55 to 59 | 9.5% | 7.3% | 6.7% |
| Age 60 to 64 | 7.7% | 3.9% | 6.3% |
| Age 65 to 74 | 7.7% | 9.0% | 9.6% |
| Age 75 to 84 | 5.1% | 3.5% | 4.5% |
| Age 85 and over | 1.6% | 3.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Closter, NJ | Rutherford, NJ | United States |
| White | 46.6% | 58.5% | 59.4% |
| Black | 3.4% | 1.9% | 12.2% |
| Asian | 36.1% | 15.3% | 5.6% |
| Native American | 0.5% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.7% | 0.5% | 0.4% |
| Two or More Races | 4.9% | 3.2% | 3.2% |
| Hispanic | 7.9% | 20.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Closter, NJ | Rutherford, NJ | United States |
| Married Population | 62.0% | 52.6% | 49.8% |
| Currently Married | 61.6% | 52.0% | 48.0% |
| Married but Separated | 0.4% | 0.6% | 1.8% |
| Single Population | 38.0% | 47.4% | 50.2% |
| Never Married | 27.3% | 35.5% | 33.8% |
| Divorced | 6.1% | 7.9% | 10.8% |
| Widowed | 4.6% | 4.0% | 5.6% |
| space5 | | | |
| Household Size | 3.05 | 2.74 | 2.60 |
| Households | 2,791 | 6,720 | 124,010,992 |
| Family Households | 2,370 | 4,818 | 80,755,759 |
| Married couple, w/children | 38.2% | 35.5% | 30.5% |
| Married couple, no children | 44.3% | 43.4% | 42.9% |
| Non Family Households | 421 | 1,902 | 43,255,233 |
| Single householder, w/children | 13.4% | 11.7% | 15.8% |
| Single householder, no children | 4.1% | 9.4% | 10.8% |