| PEOPLE | Clinton | Darien | United States |
| Population | 35,970 | 22,086 | 308,035,306 |
| Pop. Density | 1,439 | 3,575 | 87 |
| Pop. Change | 8.94% | -5.79% | 8.07% |
| Median Age | 41.4 | 45.9 | 37.3 |
| Households | 12,224 | 8,925 | 116,716,292 |
| Household Size | 2.89 | 2.46 | 2.58 |
| Male Population | 47.39% | 48.05% | 49.27% |
| Female Population | 52.61% | 51.95% | 50.96% |
| Married Population | 43.36% | 56.01% | 47.02% |
| Single Population | 56.64% | 43.99% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.36% | 4.26% | 6.56% |
| Age 5 to 9 | 5.73% | 5.03% | 6.61% |
| Age 10 to 14 | 7.05% | 6.40% | 6.71% |
| Age 15 to 17 | 5.00% | 4.39% | 4.21% |
| Age 18 to 20 | 2.62% | 1.97% | 2.95% |
| Age 21 to 24 | 5.66% | 4.81% | 7.01% |
| Age 25 to 34 | 9.99% | 9.70% | 13.33% |
| Age 35 to 44 | 14.51% | 11.96% | 13.33% |
| Age 45 to 49 | 17.71% | 17.31% | 14.61% |
| Age 50 to 54 | 17.71% | 17.31% | 14.61% |
| Age 55 to 59 | 14.82% | 16.56% | 11.84% |
| Age 60 to 64 | 14.82% | 16.56% | 11.84% |
| Age 65 to 74 | 7.19% | 10.41% | 7.05% |
| Age 75 to 84 | 3.12% | 5.17% | 4.24% |
| Age 85 and over | 1.25% | 2.03% | 1.78% |
| RACE | | | |
| White | 11.35% | 81.43% | 72.41% |
| Black | 80.73% | 3.20% | 12.61% |
| Asian | 2.52% | 11.86% | 4.75% |
| American Indian | 0.34% | 0.13% | 0.95% |
| Other | 5.07% | 3.39% | 9.28% |
| Hispanic | 12.50% | 2.20% | 16.35% |
| Non-Hispanic | 87.50% | 97.80% | 83.65% |
| FAMILY | | | |
| Married, w/children | 26.75% | 30.02% | 30.42% |
| Married, no children | 41.50% | 52.74% | 42.46% |
| Single, w/children | 12.74% | 7.28% | 14.39% |
| Single, no children | 19.00% | 9.96% | 12.73% |
| Divorced | 10.24% | 9.33% | 10.62% |
| Separated | 6.17% | 1.77% | 4.97% |
| Widowed | 6.15% | 6.85% | 6.14% |
| Now Married | 44.19% | 55.56% | 46.32% |
| Never Married | 33.25% | 26.48% | 31.95% |