| PEOPLE | Rocky Hill | Newington | United States |
| Population | 19,709 | 30,562 | 308,035,306 |
| Pop. Density | 1,465 | 2,326 | 87 |
| Pop. Change | 9.84% | 6.19% | 8.07% |
| Median Age | 44 | 43.6 | 37.3 |
| Households | 8,307 | 12,550 | 116,716,292 |
| Household Size | 2.28 | 2.4 | 2.58 |
| Male Population | 48.79% | 47.34% | 49.27% |
| Female Population | 51.21% | 52.66% | 50.96% |
| Married Population | 46.28% | 52.49% | 47.02% |
| Single Population | 53.72% | 47.51% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 4.69% | 4.79% | 6.56% |
| Age 5 to 9 | 5.27% | 5.38% | 6.61% |
| Age 10 to 14 | 5.68% | 5.87% | 6.71% |
| Age 15 to 17 | 3.41% | 3.80% | 4.21% |
| Age 18 to 20 | 1.61% | 2.01% | 2.95% |
| Age 21 to 24 | 4.91% | 4.95% | 7.01% |
| Age 25 to 34 | 13.22% | 11.59% | 13.33% |
| Age 35 to 44 | 12.56% | 13.66% | 13.33% |
| Age 45 to 49 | 16.20% | 16.08% | 14.61% |
| Age 50 to 54 | 16.20% | 16.08% | 14.61% |
| Age 55 to 59 | 14.72% | 13.42% | 11.84% |
| Age 60 to 64 | 14.72% | 13.42% | 11.84% |
| Age 65 to 74 | 7.88% | 8.85% | 7.05% |
| Age 75 to 84 | 5.93% | 6.23% | 4.24% |
| Age 85 and over | 3.92% | 3.36% | 1.78% |
| RACE | | | |
| White | 83.11% | 86.50% | 72.41% |
| Black | 3.75% | 3.52% | 12.61% |
| Asian | 9.86% | 5.68% | 4.75% |
| American Indian | 0.22% | 0.16% | 0.95% |
| Other | 3.06% | 4.15% | 9.28% |
| Hispanic | 1.34% | 15.37% | 16.35% |
| Non-Hispanic | 98.66% | 84.63% | 83.65% |
| FAMILY | | | |
| Married, w/children | 32.87% | 30.03% | 30.42% |
| Married, no children | 47.90% | 47.14% | 42.46% |
| Single, w/children | 8.70% | 10.31% | 14.39% |
| Single, no children | 10.54% | 12.53% | 12.73% |
| Divorced | 11.80% | 11.37% | 10.62% |
| Separated | 4.28% | 2.20% | 4.97% |
| Widowed | 6.01% | 7.24% | 6.14% |
| Now Married | 46.92% | 52.25% | 46.32% |
| Never Married | 30.99% | 26.95% | 31.95% |