| PEOPLE | Chapel Hill | Mission Viejo | United States |
| Population | 57,233 | 93,305 | 308,035,306 |
| Pop. Density | 2,710 | 5,260 | 87 |
| Pop. Change | 11.19% | 0.19% | 8.07% |
| Median Age | 25.8 | 42.1 | 37.3 |
| Households | 20,564 | 33,208 | 116,716,292 |
| Household Size | 2.34 | 2.78 | 2.58 |
| Male Population | 46.58% | 48.84% | 49.27% |
| Female Population | 53.42% | 51.16% | 50.96% |
| Married Population | 31.63% | 56.31% | 47.02% |
| Single Population | 68.37% | 43.69% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 4.18% | 4.94% | 6.56% |
| Age 5 to 9 | 5.08% | 5.89% | 6.61% |
| Age 10 to 14 | 5.06% | 7.11% | 6.71% |
| Age 15 to 17 | 3.06% | 4.85% | 4.21% |
| Age 18 to 20 | 10.39% | 2.86% | 2.95% |
| Age 21 to 24 | 21.08% | 5.56% | 7.01% |
| Age 25 to 34 | 13.07% | 9.71% | 13.33% |
| Age 35 to 44 | 10.52% | 13.49% | 13.33% |
| Age 45 to 49 | 10.36% | 17.84% | 14.61% |
| Age 50 to 54 | 10.36% | 17.84% | 14.61% |
| Age 55 to 59 | 7.98% | 13.24% | 11.84% |
| Age 60 to 64 | 7.98% | 13.24% | 11.84% |
| Age 65 to 74 | 4.61% | 7.71% | 7.05% |
| Age 75 to 84 | 3.06% | 4.45% | 4.24% |
| Age 85 and over | 1.56% | 2.35% | 1.78% |
| RACE | | | |
| White | 72.76% | 79.84% | 72.41% |
| Black | 9.66% | 1.30% | 12.61% |
| Asian | 11.86% | 9.07% | 4.75% |
| American Indian | 0.31% | 0.41% | 0.95% |
| Other | 5.41% | 9.39% | 9.28% |
| Hispanic | 4.59% | 35.04% | 16.35% |
| Non-Hispanic | 95.41% | 64.96% | 83.65% |
| FAMILY | | | |
| Married, w/children | 38.82% | 35.79% | 30.42% |
| Married, no children | 40.22% | 47.16% | 42.46% |
| Single, w/children | 12.45% | 7.55% | 14.39% |
| Single, no children | 8.52% | 9.50% | 12.73% |
| Divorced | 4.66% | 8.57% | 10.62% |
| Separated | 3.75% | 3.08% | 4.97% |
| Widowed | 3.16% | 5.31% | 6.14% |
| Now Married | 31.68% | 57.20% | 46.32% |
| Never Married | 56.74% | 25.84% | 31.95% |
