| PEOPLE | Springfield | Sierra Vista | United States |
| Population | 159,498 | 43,888 | 308,035,306 |
| Pop. Density | 1,952 | 288 | 87 |
| Pop. Change | 3.96% | 18.04% | 8.07% |
| Median Age | 33.4 | 33.3 | 37.3 |
| Households | 69,754 | 17,059 | 116,716,292 |
| Household Size | 2.16 | 2.41 | 2.58 |
| Male Population | 48.48% | 50.89% | 49.27% |
| Female Population | 51.52% | 49.11% | 50.96% |
| Married Population | 40.21% | 51.75% | 47.02% |
| Single Population | 59.79% | 48.25% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.01% | 7.51% | 6.56% |
| Age 5 to 9 | 4.94% | 6.35% | 6.61% |
| Age 10 to 14 | 4.46% | 5.64% | 6.71% |
| Age 15 to 17 | 2.89% | 3.54% | 4.21% |
| Age 18 to 20 | 4.60% | 3.78% | 2.95% |
| Age 21 to 24 | 13.83% | 8.69% | 7.01% |
| Age 25 to 34 | 15.31% | 16.94% | 13.33% |
| Age 35 to 44 | 10.73% | 11.99% | 13.33% |
| Age 45 to 49 | 12.25% | 11.21% | 14.61% |
| Age 50 to 54 | 12.25% | 11.21% | 14.61% |
| Age 55 to 59 | 10.49% | 9.75% | 11.84% |
| Age 60 to 64 | 10.49% | 9.75% | 11.84% |
| Age 65 to 74 | 6.76% | 8.02% | 7.05% |
| Age 75 to 84 | 5.10% | 4.83% | 4.24% |
| Age 85 and over | 2.64% | 1.75% | 1.78% |
| RACE | | | |
| White | 88.73% | 74.50% | 72.41% |
| Black | 4.09% | 9.00% | 12.61% |
| Asian | 1.89% | 4.06% | 4.75% |
| American Indian | 0.77% | 1.06% | 0.95% |
| Other | 4.51% | 11.38% | 9.28% |
| Hispanic | 7.88% | 0.00% | 16.35% |
| Non-Hispanic | 92.12% | 100.00% | 83.65% |
| FAMILY | | | |
| Married, w/children | 22.97% | 31.16% | 30.42% |
| Married, no children | 44.63% | 46.04% | 42.46% |
| Single, w/children | 17.87% | 14.11% | 14.39% |
| Single, no children | 14.53% | 8.68% | 12.73% |
| Divorced | 14.29% | 11.26% | 10.62% |
| Separated | 3.70% | 5.83% | 4.97% |
| Widowed | 6.66% | 4.59% | 6.14% |
| Now Married | 40.31% | 52.30% | 46.32% |
| Never Married | 35.04% | 26.01% | 31.95% |
