| PEOPLE | Highlands Ranch | Roseville | United States |
| Population | 96,713 | 118,788 | 308,035,306 |
| Pop. Density | 3,986 | 3,279 | 87 |
| Pop. Change | 40.35% | 50.68% | 8.07% |
| Median Age | 36.1 | 36.8 | 37.3 |
| Households | 34,054 | 45,059 | 116,716,292 |
| Household Size | 2.83 | 2.62 | 2.58 |
| Male Population | 49.09% | 47.90% | 49.27% |
| Female Population | 50.91% | 52.10% | 50.96% |
| Married Population | 62.95% | 54.74% | 47.02% |
| Single Population | 37.05% | 45.26% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.98% | 6.77% | 6.56% |
| Age 5 to 9 | 9.79% | 7.53% | 6.61% |
| Age 10 to 14 | 9.28% | 7.52% | 6.71% |
| Age 15 to 17 | 4.92% | 4.45% | 4.21% |
| Age 18 to 20 | 1.84% | 2.48% | 2.95% |
| Age 21 to 24 | 3.06% | 5.43% | 7.01% |
| Age 25 to 34 | 11.07% | 13.26% | 13.33% |
| Age 35 to 44 | 19.30% | 14.82% | 13.33% |
| Age 45 to 49 | 16.86% | 14.32% | 14.61% |
| Age 50 to 54 | 16.86% | 14.32% | 14.61% |
| Age 55 to 59 | 9.26% | 10.06% | 11.84% |
| Age 60 to 64 | 9.26% | 10.06% | 11.84% |
| Age 65 to 74 | 3.84% | 6.38% | 7.05% |
| Age 75 to 84 | 2.08% | 4.82% | 4.24% |
| Age 85 and over | 0.73% | 2.16% | 1.78% |
| RACE | | | |
| White | 88.71% | 79.30% | 72.41% |
| Black | 1.20% | 1.96% | 12.61% |
| Asian | 5.58% | 8.44% | 4.75% |
| American Indian | 0.36% | 0.75% | 0.95% |
| Other | 4.14% | 9.55% | 9.28% |
| Hispanic | 44.04% | 2.77% | 16.35% |
| Non-Hispanic | 55.96% | 97.23% | 83.65% |
| FAMILY | | | |
| Married, w/children | 50.67% | 37.98% | 30.42% |
| Married, no children | 36.01% | 39.51% | 42.46% |
| Single, w/children | 9.11% | 13.04% | 14.39% |
| Single, no children | 4.21% | 9.48% | 12.73% |
| Divorced | 8.03% | 10.78% | 10.62% |
| Separated | 2.72% | 3.15% | 4.97% |
| Widowed | 2.64% | 5.51% | 6.14% |
| Now Married | 62.19% | 54.42% | 46.32% |
| Never Married | 24.41% | 26.14% | 31.95% |