| PEOPLE | Vienna | San Buenaventura (Ventura) | United States |
| Population | 15,687 | 106,433 | 308,035,306 |
| Pop. Density | 3,561 | 4,915 | 87 |
| Pop. Change | 6.86% | 4.85% | 8.07% |
| Median Age | 40.7 | 38.9 | 37.3 |
| Households | 5,528 | 40,438 | 116,716,292 |
| Household Size | 2.83 | 2.58 | 2.58 |
| Male Population | 49.88% | 49.41% | 49.27% |
| Female Population | 50.12% | 50.59% | 50.96% |
| Married Population | 58.13% | 44.23% | 47.02% |
| Single Population | 41.87% | 55.77% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.66% | 5.79% | 6.56% |
| Age 5 to 9 | 7.24% | 5.97% | 6.61% |
| Age 10 to 14 | 7.54% | 6.51% | 6.71% |
| Age 15 to 17 | 4.25% | 4.20% | 4.21% |
| Age 18 to 20 | 1.91% | 2.73% | 2.95% |
| Age 21 to 24 | 4.32% | 6.27% | 7.01% |
| Age 25 to 34 | 9.94% | 13.39% | 13.33% |
| Age 35 to 44 | 14.65% | 13.69% | 13.33% |
| Age 45 to 49 | 17.46% | 15.76% | 14.61% |
| Age 50 to 54 | 17.46% | 15.76% | 14.61% |
| Age 55 to 59 | 12.86% | 12.39% | 11.84% |
| Age 60 to 64 | 12.86% | 12.39% | 11.84% |
| Age 65 to 74 | 6.99% | 6.48% | 7.05% |
| Age 75 to 84 | 4.49% | 4.51% | 4.24% |
| Age 85 and over | 1.68% | 2.31% | 1.78% |
| RACE | | | |
| White | 75.50% | 76.62% | 72.41% |
| Black | 3.16% | 1.62% | 12.61% |
| Asian | 12.05% | 3.44% | 4.75% |
| American Indian | 0.31% | 1.21% | 0.95% |
| Other | 8.98% | 17.11% | 9.28% |
| Hispanic | 6.18% | 5.01% | 16.35% |
| Non-Hispanic | 93.82% | 94.99% | 83.65% |
| FAMILY | | | |
| Married, w/children | 41.80% | 30.98% | 30.42% |
| Married, no children | 41.38% | 41.75% | 42.46% |
| Single, w/children | 7.54% | 13.75% | 14.39% |
| Single, no children | 9.28% | 13.52% | 12.73% |
| Divorced | 7.45% | 13.94% | 10.62% |
| Separated | 3.93% | 4.91% | 4.97% |
| Widowed | 5.24% | 6.26% | 6.14% |
| Now Married | 59.11% | 44.04% | 46.32% |
| Never Married | 24.26% | 30.85% | 31.95% |
