| PEOPLE | Yankton | Mesa | United States |
| Population | 14,454 | 439,041 | 308,035,306 |
| Pop. Density | 1,761 | 3,218 | 87 |
| Pop. Change | 7.45% | 5.44% | 8.07% |
| Median Age | 40.3 | 34.7 | 37.3 |
| Households | 5,909 | 165,374 | 116,716,292 |
| Household Size | 2.19 | 2.61 | 2.58 |
| Male Population | 50.50% | 49.18% | 49.27% |
| Female Population | 49.50% | 50.82% | 50.96% |
| Married Population | 50.87% | 45.75% | 47.02% |
| Single Population | 49.13% | 54.25% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.22% | 7.69% | 6.56% |
| Age 5 to 9 | 5.67% | 7.30% | 6.61% |
| Age 10 to 14 | 5.54% | 7.08% | 6.71% |
| Age 15 to 17 | 3.51% | 4.20% | 4.21% |
| Age 18 to 20 | 2.57% | 2.86% | 2.95% |
| Age 21 to 24 | 6.43% | 7.17% | 7.01% |
| Age 25 to 34 | 13.57% | 14.16% | 13.33% |
| Age 35 to 44 | 12.49% | 12.57% | 13.33% |
| Age 45 to 49 | 14.54% | 12.59% | 14.61% |
| Age 50 to 54 | 14.54% | 12.59% | 14.61% |
| Age 55 to 59 | 11.53% | 10.32% | 11.84% |
| Age 60 to 64 | 11.53% | 10.32% | 11.84% |
| Age 65 to 74 | 7.74% | 7.29% | 7.05% |
| Age 75 to 84 | 5.98% | 4.78% | 4.24% |
| Age 85 and over | 4.20% | 1.99% | 1.78% |
| RACE | | | |
| White | 92.10% | 77.12% | 72.41% |
| Black | 2.07% | 3.48% | 12.61% |
| Asian | 0.66% | 1.93% | 4.75% |
| American Indian | 2.26% | 2.36% | 0.95% |
| Other | 2.91% | 15.10% | 9.28% |
| Hispanic | 3.18% | 1.23% | 16.35% |
| Non-Hispanic | 96.82% | 98.77% | 83.65% |
| FAMILY | | | |
| Married, w/children | 28.88% | 30.03% | 30.42% |
| Married, no children | 47.19% | 42.05% | 42.46% |
| Single, w/children | 16.55% | 15.81% | 14.39% |
| Single, no children | 7.38% | 12.11% | 12.73% |
| Divorced | 9.45% | 12.01% | 10.62% |
| Separated | 2.77% | 4.25% | 4.97% |
| Widowed | 6.92% | 6.35% | 6.14% |
| Now Married | 50.82% | 46.13% | 46.32% |
| Never Married | 30.04% | 31.26% | 31.95% |
