| PEOPLE | Silverdale | Portland | United States |
| Population | 19,204 | 583,776 | 308,035,306 |
| Pop. Density | 1,520 | 4,375 | 87 |
| Pop. Change | -2.45% | 11.22% | 8.07% |
| Median Age | 36.6 | 35.9 | 37.3 |
| Households | 7,828 | 248,546 | 116,716,292 |
| Household Size | 2.43 | 2.27 | 2.58 |
| Male Population | 49.31% | 49.54% | 49.27% |
| Female Population | 50.69% | 50.46% | 50.96% |
| Married Population | 52.53% | 38.61% | 47.02% |
| Single Population | 47.47% | 61.39% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.35% | 6.03% | 6.56% |
| Age 5 to 9 | 5.55% | 5.38% | 6.61% |
| Age 10 to 14 | 6.39% | 4.82% | 6.71% |
| Age 15 to 17 | 4.65% | 2.88% | 4.21% |
| Age 18 to 20 | 3.00% | 2.40% | 2.95% |
| Age 21 to 24 | 9.14% | 7.35% | 7.01% |
| Age 25 to 34 | 14.11% | 19.59% | 13.33% |
| Age 35 to 44 | 11.66% | 15.94% | 13.33% |
| Age 45 to 49 | 14.66% | 13.33% | 14.61% |
| Age 50 to 54 | 14.66% | 13.33% | 14.61% |
| Age 55 to 59 | 12.80% | 11.87% | 11.84% |
| Age 60 to 64 | 12.80% | 11.87% | 11.84% |
| Age 65 to 74 | 6.47% | 5.44% | 7.05% |
| Age 75 to 84 | 4.00% | 3.22% | 4.24% |
| Age 85 and over | 2.22% | 1.75% | 1.78% |
| RACE | | | |
| White | 75.79% | 76.09% | 72.41% |
| Black | 3.24% | 6.29% | 12.61% |
| Asian | 10.98% | 7.14% | 4.75% |
| American Indian | 0.96% | 1.03% | 0.95% |
| Other | 9.02% | 9.45% | 9.28% |
| Hispanic | 1.30% | 64.38% | 16.35% |
| Non-Hispanic | 98.70% | 35.63% | 83.65% |
| FAMILY | | | |
| Married, w/children | 30.79% | 29.88% | 30.42% |
| Married, no children | 48.07% | 41.98% | 42.46% |
| Single, w/children | 12.67% | 15.13% | 14.39% |
| Single, no children | 8.47% | 13.01% | 12.73% |
| Divorced | 12.53% | 14.02% | 10.62% |
| Separated | 3.17% | 4.89% | 4.97% |
| Widowed | 4.30% | 5.00% | 6.14% |
| Now Married | 51.79% | 39.13% | 46.32% |
| Never Married | 28.21% | 36.96% | 31.95% |
