| | Kinnelon, NJ | River Vale, NJ | United States |
| Population | 9,994 | 9,888 | 329,725,481 |
| Female Population | 49.0% | 47.9% | 50.5% |
| Male Population | 51.0% | 52.1% | 49.5% |
| Median Age | 41.5 | 45.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 10,124 | 9,678 | 309,327,143 |
| Population - 2000 | 9,365 | 9,449 | 285,036,114 |
| Population - 1990 | 8,470 | 9,410 | 251,960,433 |
| Pop. 2000 to Now | 5.2% | 5.3% | 15.6% |
| Pop. 1990 to Now | 16.3% | 5.7% | 30.8% |
| space4 | | | |
| Population Density | 554.9 | 2,465.2 | 93.4 |
| Land Area | 18.0 | 4.0 | 3,531,905.4 |
| Water Area | 1.2 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Kinnelon, NJ | River Vale, NJ | United States |
| Age 0 to 4 | 3.8% | 4.5% | 5.9% |
| Age 5 to 9 | 5.9% | 5.9% | 6.1% |
| Age 10 to 14 | 7.1% | 11.1% | 6.6% |
| Age 15 to 17 | 4.6% | 4.3% | 3.9% |
| Age 18 to 20 | 5.3% | 2.9% | 4.0% |
| Age 21 to 24 | 6.6% | 4.5% | 5.2% |
| Age 25 to 34 | 8.8% | 7.3% | 13.8% |
| Age 35 to 44 | 12.6% | 9.4% | 12.9% |
| Age 45 to 54 | 13.4% | 16.3% | 12.6% |
| Age 55 to 59 | 7.8% | 9.8% | 6.7% |
| Age 60 to 64 | 9.1% | 6.2% | 6.3% |
| Age 65 to 74 | 9.9% | 10.4% | 9.6% |
| Age 75 to 84 | 4.0% | 4.4% | 4.5% |
| Age 85 and over | 1.1% | 3.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Kinnelon, NJ | River Vale, NJ | United States |
| White | 88.2% | 75.6% | 59.4% |
| Black | 0.1% | 0.2% | 12.2% |
| Asian | 6.2% | 12.4% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.2% | 0.4% |
| Two or More Races | 0.8% | 3.3% | 3.2% |
| Hispanic | 4.4% | 8.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Kinnelon, NJ | River Vale, NJ | United States |
| Married Population | 55.5% | 67.4% | 49.8% |
| Currently Married | 55.0% | 66.9% | 48.0% |
| Married but Separated | 0.5% | 0.5% | 1.8% |
| Single Population | 44.5% | 32.6% | 50.2% |
| Never Married | 31.7% | 22.2% | 33.8% |
| Divorced | 6.0% | 5.1% | 10.8% |
| Widowed | 6.8% | 5.4% | 5.6% |
| space5 | | | |
| Household Size | 3.03 | 2.89 | 2.60 |
| Households | 3,302 | 3,402 | 124,010,992 |
| Family Households | 2,884 | 2,774 | 80,755,759 |
| Married couple, w/children | 33.7% | 41.0% | 30.5% |
| Married couple, no children | 43.2% | 49.0% | 42.9% |
| Non Family Households | 418 | 628 | 43,255,233 |
| Single householder, w/children | 5.5% | 4.7% | 15.8% |
| Single householder, no children | 17.5% | 5.3% | 10.8% |