| PEOPLE | Sioux Falls | Spring Valley | United States |
| Population | 153,888 | 2,479 | 308,035,306 |
| Pop. Density | 2,109 | 979 | 87 |
| Pop. Change | 24.04% | -6.83% | 8.07% |
| Median Age | 33.6 | 39.5 | 37.3 |
| Households | 61,707 | 1,074 | 116,716,292 |
| Household Size | 2.4 | 2.28 | 2.58 |
| Male Population | 49.56% | 48.81% | 49.27% |
| Female Population | 50.44% | 51.19% | 50.96% |
| Married Population | 47.71% | 51.63% | 47.02% |
| Single Population | 52.29% | 48.37% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 8.01% | 6.94% | 6.56% |
| Age 5 to 9 | 6.85% | 6.05% | 6.61% |
| Age 10 to 14 | 6.14% | 6.05% | 6.71% |
| Age 15 to 17 | 3.64% | 4.80% | 4.21% |
| Age 18 to 20 | 2.67% | 2.66% | 2.95% |
| Age 21 to 24 | 7.97% | 5.65% | 7.01% |
| Age 25 to 34 | 16.81% | 12.02% | 13.33% |
| Age 35 to 44 | 12.89% | 12.14% | 13.33% |
| Age 45 to 49 | 13.63% | 13.39% | 14.61% |
| Age 50 to 54 | 13.63% | 13.39% | 14.61% |
| Age 55 to 59 | 10.47% | 11.34% | 11.84% |
| Age 60 to 64 | 10.47% | 11.34% | 11.84% |
| Age 65 to 74 | 5.44% | 6.74% | 7.05% |
| Age 75 to 84 | 3.71% | 6.66% | 4.24% |
| Age 85 and over | 1.77% | 5.57% | 1.78% |
| RACE | | | |
| White | 86.80% | 97.62% | 72.41% |
| Black | 4.22% | 0.65% | 12.61% |
| Asian | 1.78% | 0.52% | 4.75% |
| American Indian | 2.66% | 0.12% | 0.95% |
| Other | 4.54% | 1.09% | 9.28% |
| Hispanic | 0.95% | 5.51% | 16.35% |
| Non-Hispanic | 99.05% | 94.49% | 83.65% |
| FAMILY | | | |
| Married, w/children | 33.39% | 31.64% | 30.42% |
| Married, no children | 41.48% | 43.63% | 42.46% |
| Single, w/children | 15.86% | 16.44% | 14.39% |
| Single, no children | 9.27% | 8.29% | 12.73% |
| Divorced | 12.37% | 13.82% | 10.62% |
| Separated | 3.34% | 2.00% | 4.97% |
| Widowed | 5.56% | 7.81% | 6.14% |
| Now Married | 47.47% | 52.26% | 46.32% |
| Never Married | 31.26% | 24.10% | 31.95% |
