| | Cranbury township, NJ | West Cape May, NJ | United States |
| Population | 3,975 | 1,017 | 329,725,481 |
| Female Population | 51.3% | 51.5% | 50.5% |
| Male Population | 48.7% | 48.5% | 49.5% |
| Median Age | 49.9 | 58.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,860 | 1,011 | 309,327,143 |
| Population - 2000 | 3,227 | 1,095 | 285,036,114 |
| Population - 1990 | 2,500 | 1,026 | 251,960,433 |
| Pop. 2000 to Now | 28.7% | -9.5% | 15.6% |
| Pop. 1990 to Now | 66.1% | -3.4% | 30.8% |
| space4 | | | |
| Population Density | 300.1 | 867.0 | 93.4 |
| Land Area | 13.2 | 1.2 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Cranbury township, NJ | West Cape May, NJ | United States |
| Age 0 to 4 | 3.3% | 9.3% | 5.9% |
| Age 5 to 9 | 4.1% | 7.6% | 6.1% |
| Age 10 to 14 | 8.5% | 1.0% | 6.6% |
| Age 15 to 17 | 4.7% | 0.1% | 3.9% |
| Age 18 to 20 | 5.7% | 1.0% | 4.0% |
| Age 21 to 24 | 2.9% | 5.3% | 5.2% |
| Age 25 to 34 | 4.8% | 8.6% | 13.8% |
| Age 35 to 44 | 10.3% | 8.2% | 12.9% |
| Age 45 to 54 | 16.4% | 7.1% | 12.6% |
| Age 55 to 59 | 11.6% | 4.8% | 6.7% |
| Age 60 to 64 | 8.9% | 11.3% | 6.3% |
| Age 65 to 74 | 9.8% | 19.3% | 9.6% |
| Age 75 to 84 | 7.2% | 13.6% | 4.5% |
| Age 85 and over | 1.7% | 3.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Cranbury township, NJ | West Cape May, NJ | United States |
| White | 70.3% | 75.3% | 59.4% |
| Black | 3.5% | 4.2% | 12.2% |
| Asian | 19.0% | 2.7% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.5% | 0.0% | 0.4% |
| Two or More Races | 4.8% | 9.9% | 3.2% |
| Hispanic | 2.0% | 7.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Cranbury township, NJ | West Cape May, NJ | United States |
| Married Population | 67.1% | 67.8% | 49.8% |
| Currently Married | 66.8% | 67.8% | 48.0% |
| Married but Separated | 0.3% | 0.0% | 1.8% |
| Single Population | 32.9% | 32.2% | 50.2% |
| Never Married | 22.7% | 17.1% | 33.8% |
| Divorced | 6.0% | 6.6% | 10.8% |
| Widowed | 4.2% | 8.5% | 5.6% |
| space5 | | | |
| Household Size | 2.85 | 2.22 | 2.60 |
| Households | 1,365 | 459 | 124,010,992 |
| Family Households | 1,133 | 319 | 80,755,759 |
| Married couple, w/children | 32.7% | 26.0% | 30.5% |
| Married couple, no children | 60.3% | 59.9% | 42.9% |
| Non Family Households | 232 | 140 | 43,255,233 |
| Single householder, w/children | 1.9% | 2.8% | 15.8% |
| Single householder, no children | 5.1% | 11.3% | 10.8% |