| PEOPLE | Dubuque | Indianapolis city | United States |
| Population | 57,637 | 820,445 | 308,035,306 |
| Pop. Density | 1,923 | 2,270 | 87 |
| Pop. Change | 0.14% | 4.87% | 8.07% |
| Median Age | 37.9 | 33.8 | 37.3 |
| Households | 23,506 | 332,199 | 116,716,292 |
| Household Size | 2.29 | 2.42 | 2.58 |
| Male Population | 48.42% | 48.31% | 49.27% |
| Female Population | 51.58% | 51.69% | 50.96% |
| Married Population | 47.92% | 39.32% | 47.02% |
| Single Population | 52.08% | 60.68% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.15% | 7.59% | 6.56% |
| Age 5 to 9 | 5.89% | 6.86% | 6.61% |
| Age 10 to 14 | 5.82% | 6.52% | 6.71% |
| Age 15 to 17 | 3.58% | 4.01% | 4.21% |
| Age 18 to 20 | 3.95% | 2.91% | 2.95% |
| Age 21 to 24 | 9.02% | 7.76% | 7.01% |
| Age 25 to 34 | 12.76% | 16.21% | 13.33% |
| Age 35 to 44 | 10.46% | 13.13% | 13.33% |
| Age 45 to 49 | 13.83% | 14.01% | 14.61% |
| Age 50 to 54 | 13.83% | 14.01% | 14.61% |
| Age 55 to 59 | 12.02% | 10.53% | 11.84% |
| Age 60 to 64 | 12.02% | 10.53% | 11.84% |
| Age 65 to 74 | 7.39% | 5.56% | 7.05% |
| Age 75 to 84 | 5.96% | 3.43% | 4.24% |
| Age 85 and over | 3.16% | 1.49% | 1.78% |
| RACE | | | |
| White | 91.73% | 61.80% | 72.41% |
| Black | 3.99% | 27.47% | 12.61% |
| Asian | 1.14% | 2.10% | 4.75% |
| American Indian | 0.27% | 0.32% | 0.95% |
| Other | 2.87% | 8.32% | 9.28% |
| Hispanic | 1.27% | 0.00% | 16.35% |
| Non-Hispanic | 98.73% | 100.00% | 83.65% |
| FAMILY | | | |
| Married, w/children | 27.26% | 25.43% | 30.42% |
| Married, no children | 46.59% | 36.14% | 42.46% |
| Single, w/children | 16.14% | 22.19% | 14.39% |
| Single, no children | 10.02% | 16.25% | 12.73% |
| Divorced | 9.93% | 14.38% | 10.62% |
| Separated | 2.55% | 4.68% | 4.97% |
| Widowed | 6.58% | 6.52% | 6.14% |
| Now Married | 48.85% | 39.91% | 46.32% |
| Never Married | 32.09% | 34.51% | 31.95% |
