| PEOPLE | Hamilton Township (Mercer county) | Seneca | United States |
| Population | 88,464 | 8,102 | 308,035,306 |
| Pop. Density | 2,240 | 1,073 | 87 |
| Pop. Change | 1.40% | 10.01% | 8.07% |
| Median Age | 41.8 | 41.5 | 37.3 |
| Households | 34,534 | 3,511 | 116,716,292 |
| Household Size | 2.54 | 2.32 | 2.58 |
| Male Population | 47.86% | 46.54% | 49.27% |
| Female Population | 52.14% | 53.46% | 50.96% |
| Married Population | 51.30% | 45.59% | 47.02% |
| Single Population | 48.70% | 54.41% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.18% | 7.59% | 6.56% |
| Age 5 to 9 | 5.56% | 5.46% | 6.61% |
| Age 10 to 14 | 6.30% | 5.57% | 6.71% |
| Age 15 to 17 | 4.13% | 3.60% | 4.21% |
| Age 18 to 20 | 2.46% | 2.68% | 2.95% |
| Age 21 to 24 | 5.63% | 6.38% | 7.01% |
| Age 25 to 34 | 11.82% | 11.74% | 13.33% |
| Age 35 to 44 | 13.53% | 10.92% | 13.33% |
| Age 45 to 49 | 16.05% | 13.33% | 14.61% |
| Age 50 to 54 | 16.05% | 13.33% | 14.61% |
| Age 55 to 59 | 13.56% | 13.84% | 11.84% |
| Age 60 to 64 | 13.56% | 13.84% | 11.84% |
| Age 65 to 74 | 7.65% | 10.10% | 7.05% |
| Age 75 to 84 | 5.53% | 6.27% | 4.24% |
| Age 85 and over | 2.60% | 2.53% | 1.78% |
| RACE | | | |
| White | 78.38% | 65.27% | 72.41% |
| Black | 11.78% | 28.98% | 12.61% |
| Asian | 3.29% | 0.94% | 4.75% |
| American Indian | 0.17% | 0.27% | 0.95% |
| Other | 6.38% | 4.54% | 9.28% |
| Hispanic | 1.23% | 1.59% | 16.35% |
| Non-Hispanic | 98.77% | 98.41% | 83.65% |
| FAMILY | | | |
| Married, w/children | 29.78% | 20.63% | 30.42% |
| Married, no children | 44.87% | 45.17% | 42.46% |
| Single, w/children | 10.92% | 20.35% | 14.39% |
| Single, no children | 14.43% | 13.85% | 12.73% |
| Divorced | 7.32% | 9.47% | 10.62% |
| Separated | 2.64% | 7.63% | 4.97% |
| Widowed | 7.36% | 9.94% | 6.14% |
| Now Married | 51.32% | 45.53% | 46.32% |
| Never Married | 31.36% | 27.43% | 31.95% |
