| PEOPLE | Jefferson City | Pacifica | United States |
| Population | 43,079 | 37,234 | 308,035,306 |
| Pop. Density | 1,198 | 2,942 | 87 |
| Pop. Change | 6.95% | -3.49% | 8.07% |
| Median Age | 37.4 | 41.6 | 37.3 |
| Households | 17,278 | 13,967 | 116,716,292 |
| Household Size | 2.22 | 2.65 | 2.58 |
| Male Population | 51.24% | 48.87% | 49.27% |
| Female Population | 48.76% | 51.13% | 50.96% |
| Married Population | 43.82% | 49.94% | 47.02% |
| Single Population | 56.18% | 50.06% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.51% | 5.43% | 6.56% |
| Age 5 to 9 | 5.80% | 5.55% | 6.61% |
| Age 10 to 14 | 5.41% | 5.94% | 6.71% |
| Age 15 to 17 | 3.19% | 3.78% | 4.21% |
| Age 18 to 20 | 3.04% | 2.14% | 2.95% |
| Age 21 to 24 | 7.33% | 5.50% | 7.01% |
| Age 25 to 34 | 15.46% | 12.22% | 13.33% |
| Age 35 to 44 | 13.02% | 14.67% | 13.33% |
| Age 45 to 49 | 14.54% | 17.41% | 14.61% |
| Age 50 to 54 | 14.54% | 17.41% | 14.61% |
| Age 55 to 59 | 12.27% | 15.24% | 11.84% |
| Age 60 to 64 | 12.27% | 15.24% | 11.84% |
| Age 65 to 74 | 6.33% | 6.97% | 7.05% |
| Age 75 to 84 | 4.68% | 3.70% | 4.24% |
| Age 85 and over | 2.41% | 1.46% | 1.78% |
| RACE | | | |
| White | 77.99% | 64.90% | 72.41% |
| Black | 16.86% | 2.62% | 12.61% |
| Asian | 1.75% | 19.42% | 4.75% |
| American Indian | 0.33% | 0.55% | 0.95% |
| Other | 3.06% | 12.50% | 9.28% |
| Hispanic | 14.62% | 3.36% | 16.35% |
| Non-Hispanic | 85.38% | 96.64% | 83.65% |
| FAMILY | | | |
| Married, w/children | 28.04% | 31.73% | 30.42% |
| Married, no children | 44.03% | 44.52% | 42.46% |
| Single, w/children | 18.08% | 9.85% | 14.39% |
| Single, no children | 9.86% | 13.91% | 12.73% |
| Divorced | 14.33% | 10.88% | 10.62% |
| Separated | 3.87% | 3.85% | 4.97% |
| Widowed | 8.04% | 4.98% | 6.14% |
| Now Married | 43.86% | 49.54% | 46.32% |
| Never Married | 29.90% | 30.76% | 31.95% |
