| PEOPLE | New Castle | United States |
| Population | 4,518 | 308,035,306 |
| Pop. Density | 1,700 | 87 |
| Pop. Change | 80.38% | 8.07% |
| Median Age | 31.3 | 37.3 |
| Households | 1,571 | 116,716,292 |
| Household Size | 2.82 | 2.58 |
| Male Population | 51.20% | 49.27% |
| Female Population | 48.80% | 50.96% |
| Married Population | 63.06% | 47.02% |
| Single Population | 36.94% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | |
| Age 0 to 4 | 9.03% | 6.56% |
| Age 5 to 9 | 9.83% | 6.61% |
| Age 10 to 14 | 8.57% | 6.71% |
| Age 15 to 17 | 3.81% | 4.21% |
| Age 18 to 20 | 1.84% | 2.95% |
| Age 21 to 24 | 5.53% | 7.01% |
| Age 25 to 34 | 18.28% | 13.33% |
| Age 35 to 44 | 16.95% | 13.33% |
| Age 45 to 49 | 13.21% | 14.61% |
| Age 50 to 54 | 13.21% | 14.61% |
| Age 55 to 59 | 8.46% | 11.84% |
| Age 60 to 64 | 8.46% | 11.84% |
| Age 65 to 74 | 3.05% | 7.05% |
| Age 75 to 84 | 1.00% | 4.24% |
| Age 85 and over | 0.44% | 1.78% |
| RACE | | |
| White | 83.33% | 72.41% |
| Black | 0.71% | 12.61% |
| Asian | 0.91% | 4.75% |
| American Indian | 1.46% | 0.95% |
| Other | 13.59% | 9.28% |
| Hispanic | 8.89% | 16.35% |
| Non-Hispanic | 91.11% | 83.65% |
| FAMILY | | |
| Married, w/children | 44.40% | 30.42% |
| Married, no children | 35.72% | 42.46% |
| Single, w/children | 13.90% | 14.39% |
| Single, no children | 5.98% | 12.73% |
| Divorced | 8.79% | 10.62% |
| Separated | 5.13% | 4.97% |
| Widowed | 2.46% | 6.14% |
| Now Married | 63.16% | 46.32% |
| Never Married | 20.46% | 31.95% |
