| PEOPLE | Scarsdale | Wellesley | United States |
| Population | 17,166 | 27,982 | 308,035,306 |
| Pop. Density | 2,577 | 2,793 | 87 |
| Pop. Change | -4.25% | 5.00% | 8.07% |
| Median Age | 42 | 37.8 | 37.3 |
| Households | 5,418 | 8,695 | 116,716,292 |
| Household Size | 3.16 | 2.78 | 2.58 |
| Male Population | 48.74% | 44.09% | 49.27% |
| Female Population | 51.26% | 55.91% | 50.96% |
| Married Population | 68.75% | 53.09% | 47.02% |
| Single Population | 31.25% | 46.91% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.73% | 5.61% | 6.56% |
| Age 5 to 9 | 10.27% | 8.12% | 6.61% |
| Age 10 to 14 | 11.07% | 8.51% | 6.71% |
| Age 15 to 17 | 6.58% | 4.68% | 4.21% |
| Age 18 to 20 | 1.33% | 6.56% | 2.95% |
| Age 21 to 24 | 2.38% | 9.29% | 7.01% |
| Age 25 to 34 | 3.63% | 4.44% | 13.33% |
| Age 35 to 44 | 14.66% | 11.90% | 13.33% |
| Age 45 to 49 | 18.07% | 15.37% | 14.61% |
| Age 50 to 54 | 18.07% | 15.37% | 14.61% |
| Age 55 to 59 | 12.36% | 11.71% | 11.84% |
| Age 60 to 64 | 12.36% | 11.71% | 11.84% |
| Age 65 to 74 | 7.97% | 7.02% | 7.05% |
| Age 75 to 84 | 4.14% | 4.57% | 4.24% |
| Age 85 and over | 1.81% | 2.22% | 1.78% |
| RACE | | | |
| White | 82.70% | 85.12% | 72.41% |
| Black | 1.51% | 2.04% | 12.61% |
| Asian | 12.96% | 9.85% | 4.75% |
| American Indian | 0.03% | 0.13% | 0.95% |
| Other | 2.79% | 2.87% | 9.28% |
| Hispanic | 4.53% | 0.88% | 16.35% |
| Non-Hispanic | 95.47% | 99.12% | 83.65% |
| FAMILY | | | |
| Married, w/children | 53.99% | 49.47% | 30.42% |
| Married, no children | 38.44% | 39.57% | 42.46% |
| Single, w/children | 4.34% | 5.82% | 14.39% |
| Single, no children | 3.23% | 5.14% | 12.73% |
| Divorced | 3.52% | 5.75% | 10.62% |
| Separated | 2.89% | 4.43% | 4.97% |
| Widowed | 4.01% | 5.08% | 6.14% |
| Now Married | 68.36% | 53.23% | 46.32% |
| Never Married | 21.22% | 31.52% | 31.95% |
