| PEOPLE | Winchester | Castle Rock | United States |
| Population | 18,368 | 48,231 | 308,035,306 |
| Pop. Density | 2,344 | 1,427 | 87 |
| Pop. Change | 2.29% | 128.05% | 8.07% |
| Median Age | 36.4 | 33.7 | 37.3 |
| Households | 7,558 | 16,688 | 116,716,292 |
| Household Size | 2.38 | 2.86 | 2.58 |
| Male Population | 48.02% | 49.61% | 49.27% |
| Female Population | 51.98% | 50.39% | 50.96% |
| Married Population | 42.10% | 59.25% | 47.02% |
| Single Population | 57.90% | 40.75% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.53% | 9.21% | 6.56% |
| Age 5 to 9 | 6.66% | 10.23% | 6.61% |
| Age 10 to 14 | 6.47% | 8.56% | 6.71% |
| Age 15 to 17 | 4.11% | 4.37% | 4.21% |
| Age 18 to 20 | 2.39% | 2.01% | 2.95% |
| Age 21 to 24 | 6.22% | 3.73% | 7.01% |
| Age 25 to 34 | 14.51% | 13.96% | 13.33% |
| Age 35 to 44 | 13.85% | 19.00% | 13.33% |
| Age 45 to 49 | 13.56% | 14.14% | 14.61% |
| Age 50 to 54 | 13.56% | 14.14% | 14.61% |
| Age 55 to 59 | 11.22% | 8.58% | 11.84% |
| Age 60 to 64 | 11.22% | 8.58% | 11.84% |
| Age 65 to 74 | 6.94% | 4.05% | 7.05% |
| Age 75 to 84 | 4.57% | 1.49% | 4.24% |
| Age 85 and over | 1.95% | 0.66% | 1.78% |
| RACE | | | |
| White | 87.72% | 90.75% | 72.41% |
| Black | 8.18% | 1.13% | 12.61% |
| Asian | 0.41% | 1.68% | 4.75% |
| American Indian | 0.16% | 0.59% | 0.95% |
| Other | 3.53% | 5.85% | 9.28% |
| Hispanic | 2.45% | 20.00% | 16.35% |
| Non-Hispanic | 97.55% | 80.00% | 83.65% |
| FAMILY | | | |
| Married, w/children | 26.01% | 48.68% | 30.42% |
| Married, no children | 39.23% | 35.44% | 42.46% |
| Single, w/children | 19.63% | 11.16% | 14.39% |
| Single, no children | 15.13% | 4.72% | 12.73% |
| Divorced | 18.43% | 9.05% | 10.62% |
| Separated | 4.85% | 3.68% | 4.97% |
| Widowed | 9.91% | 2.71% | 6.14% |
| Now Married | 41.97% | 59.04% | 46.32% |
| Never Married | 24.85% | 25.52% | 31.95% |
