| | Hawthorne, NY | Briarcliff Manor, NY | United States |
| Population | 4,609 | 7,587 | 329,725,481 |
| Female Population | 50.6% | 50.5% | 50.5% |
| Male Population | 49.4% | 49.5% | 49.5% |
| Median Age | 48.8 | 49 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,529 | 7,863 | 309,327,143 |
| Population - 2000 | 5,083 | 7,696 | 285,036,114 |
| Population - 1990 | 4,764 | 7,070 | 251,960,433 |
| Pop. 2000 to Now | -8.9% | 4.5% | 15.6% |
| Pop. 1990 to Now | -2.8% | 13.7% | 30.8% |
| space4 | | | |
| Population Density | 4,197.6 | 1,277.7 | 93.4 |
| Land Area | 1.1 | 5.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.9 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hawthorne, NY | Briarcliff Manor, NY | United States |
| Age 0 to 4 | 7.9% | 3.7% | 5.9% |
| Age 5 to 9 | 4.4% | 5.5% | 6.1% |
| Age 10 to 14 | 4.4% | 7.8% | 6.6% |
| Age 15 to 17 | 2.7% | 4.6% | 3.9% |
| Age 18 to 20 | 1.5% | 3.2% | 4.0% |
| Age 21 to 24 | 7.0% | 5.3% | 5.2% |
| Age 25 to 34 | 7.2% | 7.6% | 13.8% |
| Age 35 to 44 | 10.8% | 9.2% | 12.9% |
| Age 45 to 54 | 12.6% | 12.5% | 12.6% |
| Age 55 to 59 | 8.5% | 10.3% | 6.7% |
| Age 60 to 64 | 8.5% | 8.3% | 6.3% |
| Age 65 to 74 | 14.0% | 11.9% | 9.6% |
| Age 75 to 84 | 4.2% | 5.1% | 4.5% |
| Age 85 and over | 6.2% | 5.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hawthorne, NY | Briarcliff Manor, NY | United States |
| White | 88.6% | 78.6% | 59.4% |
| Black | 0.7% | 1.0% | 12.2% |
| Asian | 5.1% | 4.6% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 1.1% | 0.4% |
| Two or More Races | 0.4% | 4.0% | 3.2% |
| Hispanic | 5.3% | 10.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Hawthorne, NY | Briarcliff Manor, NY | United States |
| Married Population | 60.8% | 65.5% | 49.8% |
| Currently Married | 59.9% | 64.3% | 48.0% |
| Married but Separated | 0.9% | 1.2% | 1.8% |
| Single Population | 39.2% | 34.5% | 50.2% |
| Never Married | 25.2% | 23.8% | 33.8% |
| Divorced | 8.2% | 5.3% | 10.8% |
| Widowed | 5.9% | 5.4% | 5.6% |
| space5 | | | |
| Household Size | 2.74 | 2.68 | 2.60 |
| Households | 1,673 | 2,738 | 124,010,992 |
| Family Households | 1,235 | 2,219 | 80,755,759 |
| Married couple, w/children | 36.0% | 35.5% | 30.5% |
| Married couple, no children | 54.2% | 52.7% | 42.9% |
| Non Family Households | 438 | 519 | 43,255,233 |
| Single householder, w/children | 1.1% | 5.5% | 15.8% |
| Single householder, no children | 8.7% | 6.3% | 10.8% |