| PEOPLE | Natick | Cambridge | United States |
| Population | 33,006 | 105,162 | 308,035,306 |
| Pop. Density | 2,207 | 16,469 | 87 |
| Pop. Change | 3.10% | 4.21% | 8.07% |
| Median Age | 41.1 | 30.3 | 37.3 |
| Households | 13,406 | 44,032 | 116,716,292 |
| Household Size | 2.43 | 2 | 2.58 |
| Male Population | 48.09% | 48.60% | 49.27% |
| Female Population | 51.91% | 51.40% | 50.96% |
| Married Population | 55.27% | 27.71% | 47.02% |
| Single Population | 44.73% | 72.29% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.69% | 4.30% | 6.56% |
| Age 5 to 9 | 6.90% | 2.92% | 6.61% |
| Age 10 to 14 | 6.43% | 2.59% | 6.71% |
| Age 15 to 17 | 3.78% | 1.62% | 4.21% |
| Age 18 to 20 | 1.49% | 5.02% | 2.95% |
| Age 21 to 24 | 3.76% | 15.76% | 7.01% |
| Age 25 to 34 | 11.81% | 28.69% | 13.33% |
| Age 35 to 44 | 15.50% | 11.93% | 13.33% |
| Age 45 to 49 | 16.85% | 8.88% | 14.61% |
| Age 50 to 54 | 16.85% | 8.88% | 14.61% |
| Age 55 to 59 | 12.80% | 8.79% | 11.84% |
| Age 60 to 64 | 12.80% | 8.79% | 11.84% |
| Age 65 to 74 | 7.04% | 5.23% | 7.05% |
| Age 75 to 84 | 4.82% | 2.94% | 4.24% |
| Age 85 and over | 2.15% | 1.34% | 1.78% |
| RACE | | | |
| White | 87.32% | 66.57% | 72.41% |
| Black | 2.10% | 11.65% | 12.61% |
| Asian | 7.23% | 15.10% | 4.75% |
| American Indian | 0.13% | 0.23% | 0.95% |
| Other | 3.22% | 6.45% | 9.28% |
| Hispanic | 0.00% | 0.69% | 16.35% |
| Non-Hispanic | 100.00% | 99.31% | 83.65% |
| FAMILY | | | |
| Married, w/children | 41.12% | 26.84% | 30.42% |
| Married, no children | 42.40% | 46.19% | 42.46% |
| Single, w/children | 7.01% | 13.18% | 14.39% |
| Single, no children | 9.47% | 13.79% | 12.73% |
| Divorced | 8.57% | 8.06% | 10.62% |
| Separated | 2.63% | 6.04% | 4.97% |
| Widowed | 6.37% | 3.45% | 6.14% |
| Now Married | 55.71% | 27.49% | 46.32% |
| Never Married | 26.72% | 54.96% | 31.95% |
