| PEOPLE | Auburn | Portland | United States |
| Population | 70,180 | 3,883 | 308,035,306 |
| Pop. Density | 2,369 | 1,472 | 87 |
| Pop. Change | 25.54% | 7.94% | 8.07% |
| Median Age | 34.5 | 35.6 | 37.3 |
| Households | 26,058 | 1,640 | 116,716,292 |
| Household Size | 2.66 | 2.56 | 2.58 |
| Male Population | 49.41% | 48.98% | 49.27% |
| Female Population | 50.59% | 51.02% | 50.96% |
| Married Population | 46.29% | 60.11% | 47.02% |
| Single Population | 53.71% | 39.89% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.41% | 8.16% | 6.56% |
| Age 5 to 9 | 6.91% | 6.77% | 6.61% |
| Age 10 to 14 | 7.13% | 6.57% | 6.71% |
| Age 15 to 17 | 4.46% | 3.91% | 4.21% |
| Age 18 to 20 | 3.28% | 2.47% | 2.95% |
| Age 21 to 24 | 7.30% | 6.39% | 7.01% |
| Age 25 to 34 | 14.25% | 15.01% | 13.33% |
| Age 35 to 44 | 13.59% | 12.77% | 13.33% |
| Age 45 to 49 | 14.89% | 12.95% | 14.61% |
| Age 50 to 54 | 14.89% | 12.95% | 14.61% |
| Age 55 to 59 | 10.61% | 12.03% | 11.84% |
| Age 60 to 64 | 10.61% | 12.03% | 11.84% |
| Age 65 to 74 | 5.54% | 6.54% | 7.05% |
| Age 75 to 84 | 3.33% | 4.74% | 4.24% |
| Age 85 and over | 1.30% | 1.67% | 1.78% |
| RACE | | | |
| White | 70.46% | 96.68% | 72.41% |
| Black | 4.94% | 0.72% | 12.61% |
| Asian | 8.91% | 0.18% | 4.75% |
| American Indian | 2.29% | 0.44% | 0.95% |
| Other | 13.39% | 1.98% | 9.28% |
| Hispanic | 2.04% | 0.00% | 16.35% |
| Non-Hispanic | 97.96% | 100.00% | 83.65% |
| FAMILY | | | |
| Married, w/children | 32.85% | 32.34% | 30.42% |
| Married, no children | 38.26% | 40.42% | 42.46% |
| Single, w/children | 16.51% | 17.23% | 14.39% |
| Single, no children | 12.38% | 10.01% | 12.73% |
| Divorced | 16.51% | 10.30% | 10.62% |
| Separated | 5.27% | 0.74% | 4.97% |
| Widowed | 4.62% | 5.99% | 6.14% |
| Now Married | 46.59% | 59.85% | 46.32% |
| Never Married | 27.01% | 23.12% | 31.95% |
