| PEOPLE | Austin | Sunnyvale | United States |
| Population | 790,390 | 140,081 | 308,035,306 |
| Pop. Density | 2,653 | 6,371 | 87 |
| Pop. Change | 22.06% | 7.47% | 8.07% |
| Median Age | 31.1 | 35.7 | 37.3 |
| Households | 324,892 | 53,384 | 116,716,292 |
| Household Size | 2.38 | 2.61 | 2.58 |
| Male Population | 50.57% | 50.37% | 49.27% |
| Female Population | 49.43% | 49.63% | 50.96% |
| Married Population | 36.61% | 47.30% | 47.02% |
| Single Population | 63.39% | 52.70% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.34% | 8.03% | 6.56% |
| Age 5 to 9 | 6.38% | 6.44% | 6.61% |
| Age 10 to 14 | 5.40% | 5.07% | 6.71% |
| Age 15 to 17 | 3.09% | 2.90% | 4.21% |
| Age 18 to 20 | 3.43% | 1.67% | 2.95% |
| Age 21 to 24 | 11.06% | 5.01% | 7.01% |
| Age 25 to 34 | 20.71% | 19.61% | 13.33% |
| Age 35 to 44 | 14.77% | 16.74% | 13.33% |
| Age 45 to 49 | 12.06% | 13.76% | 14.61% |
| Age 50 to 54 | 12.06% | 13.76% | 14.61% |
| Age 55 to 59 | 8.73% | 9.60% | 11.84% |
| Age 60 to 64 | 8.73% | 9.60% | 11.84% |
| Age 65 to 74 | 3.92% | 5.79% | 7.05% |
| Age 75 to 84 | 2.17% | 3.68% | 4.24% |
| Age 85 and over | 0.96% | 1.71% | 1.78% |
| RACE | | | |
| White | 68.29% | 42.97% | 72.41% |
| Black | 8.15% | 1.95% | 12.61% |
| Asian | 6.31% | 40.92% | 4.75% |
| American Indian | 0.87% | 0.47% | 0.95% |
| Other | 16.38% | 13.69% | 9.28% |
| Hispanic | 2.01% | 5.57% | 16.35% |
| Non-Hispanic | 97.99% | 94.43% | 83.65% |
| FAMILY | | | |
| Married, w/children | 33.70% | 40.96% | 30.42% |
| Married, no children | 36.16% | 39.43% | 42.46% |
| Single, w/children | 16.33% | 7.96% | 14.39% |
| Single, no children | 13.81% | 11.64% | 12.73% |
| Divorced | 10.96% | 9.34% | 10.62% |
| Separated | 6.48% | 5.67% | 4.97% |
| Widowed | 3.42% | 5.44% | 6.14% |
| Now Married | 37.09% | 48.02% | 46.32% |
| Never Married | 42.05% | 31.54% | 31.95% |
