| PEOPLE | Stamford | Middletown | United States |
| Population | 122,643 | 47,648 | 308,035,306 |
| Pop. Density | 3,258 | 1,162 | 87 |
| Pop. Change | 12.56% | 10.82% | 8.07% |
| Median Age | 37.1 | 37 | 37.3 |
| Households | 47,357 | 19,863 | 116,716,292 |
| Household Size | 2.57 | 2.21 | 2.58 |
| Male Population | 49.25% | 48.56% | 49.27% |
| Female Population | 50.75% | 51.44% | 50.96% |
| Married Population | 43.66% | 44.79% | 47.02% |
| Single Population | 56.34% | 55.21% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.77% | 5.37% | 6.56% |
| Age 5 to 9 | 5.71% | 5.15% | 6.61% |
| Age 10 to 14 | 5.58% | 5.23% | 6.71% |
| Age 15 to 17 | 3.50% | 3.32% | 4.21% |
| Age 18 to 20 | 1.83% | 3.93% | 2.95% |
| Age 21 to 24 | 5.96% | 9.15% | 7.01% |
| Age 25 to 34 | 17.40% | 15.29% | 13.33% |
| Age 35 to 44 | 15.09% | 13.43% | 13.33% |
| Age 45 to 49 | 14.22% | 14.64% | 14.61% |
| Age 50 to 54 | 14.22% | 14.64% | 14.61% |
| Age 55 to 59 | 10.81% | 11.31% | 11.84% |
| Age 60 to 64 | 10.81% | 11.31% | 11.84% |
| Age 65 to 74 | 6.36% | 6.53% | 7.05% |
| Age 75 to 84 | 4.51% | 4.29% | 4.24% |
| Age 85 and over | 2.25% | 2.37% | 1.78% |
| RACE | | | |
| White | 64.96% | 75.84% | 72.41% |
| Black | 13.91% | 12.82% | 12.61% |
| Asian | 7.89% | 4.87% | 4.75% |
| American Indian | 0.32% | 0.22% | 0.95% |
| Other | 12.92% | 6.25% | 9.28% |
| Hispanic | 9.50% | 0.17% | 16.35% |
| Non-Hispanic | 90.50% | 99.83% | 83.65% |
| FAMILY | | | |
| Married, w/children | 34.36% | 26.85% | 30.42% |
| Married, no children | 39.51% | 42.41% | 42.46% |
| Single, w/children | 12.14% | 17.13% | 14.39% |
| Single, no children | 13.98% | 13.61% | 12.73% |
| Divorced | 8.54% | 12.17% | 10.62% |
| Separated | 6.25% | 2.40% | 4.97% |
| Widowed | 6.37% | 6.53% | 6.14% |
| Now Married | 44.53% | 44.19% | 46.32% |
| Never Married | 34.30% | 34.71% | 31.95% |
