| | West Nyack, NY | New City, NY | United States |
| Population | 3,848 | 34,118 | 329,725,481 |
| Female Population | 53.1% | 51.7% | 50.5% |
| Male Population | 46.9% | 48.3% | 49.5% |
| Median Age | 51.1 | 44.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,292 | 33,402 | 309,327,143 |
| Population - 2000 | 3,282 | 34,038 | 285,036,114 |
| Population - 1990 | 3,437 | 33,673 | 251,960,433 |
| Pop. 2000 to Now | 21.5% | 1.9% | 15.6% |
| Pop. 1990 to Now | 16.0% | 3.0% | 30.8% |
| space4 | | | |
| Population Density | 1,314.2 | 2,190.8 | 93.4 |
| Land Area | 2.9 | 15.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.8 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | West Nyack, NY | New City, NY | United States |
| Age 0 to 4 | 6.1% | 5.1% | 5.9% |
| Age 5 to 9 | 4.2% | 5.5% | 6.1% |
| Age 10 to 14 | 2.5% | 5.6% | 6.6% |
| Age 15 to 17 | 8.5% | 5.0% | 3.9% |
| Age 18 to 20 | 3.7% | 2.8% | 4.0% |
| Age 21 to 24 | 3.9% | 4.9% | 5.2% |
| Age 25 to 34 | 8.8% | 9.9% | 13.8% |
| Age 35 to 44 | 7.3% | 11.5% | 12.9% |
| Age 45 to 54 | 11.8% | 13.6% | 12.6% |
| Age 55 to 59 | 10.0% | 7.7% | 6.7% |
| Age 60 to 64 | 11.0% | 7.6% | 6.3% |
| Age 65 to 74 | 12.9% | 12.4% | 9.6% |
| Age 75 to 84 | 5.0% | 6.2% | 4.5% |
| Age 85 and over | 4.3% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | West Nyack, NY | New City, NY | United States |
| White | 61.4% | 62.9% | 59.4% |
| Black | 9.8% | 7.3% | 12.2% |
| Asian | 1.6% | 11.5% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 0.0% | 2.6% | 3.2% |
| Hispanic | 27.2% | 15.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | West Nyack, NY | New City, NY | United States |
| Married Population | 52.2% | 59.4% | 49.8% |
| Currently Married | 48.9% | 58.4% | 48.0% |
| Married but Separated | 3.3% | 1.0% | 1.8% |
| Single Population | 47.8% | 40.6% | 50.2% |
| Never Married | 30.8% | 28.7% | 33.8% |
| Divorced | 13.3% | 5.5% | 10.8% |
| Widowed | 3.8% | 6.5% | 5.6% |
| space5 | | | |
| Household Size | 2.73 | 3.10 | 2.60 |
| Households | 1,397 | 10,889 | 124,010,992 |
| Family Households | 989 | 8,919 | 80,755,759 |
| Married couple, w/children | 37.1% | 36.0% | 30.5% |
| Married couple, no children | 45.8% | 49.2% | 42.9% |
| Non Family Households | 408 | 1,970 | 43,255,233 |
| Single householder, w/children | 8.6% | 6.0% | 15.8% |
| Single householder, no children | 8.5% | 8.9% | 10.8% |