| PEOPLE | Topeka | Parker | United States |
| Population | 127,473 | 45,297 | 308,035,306 |
| Pop. Density | 2,119 | 2,212 | 87 |
| Pop. Change | 2.99% | 92.93% | 8.07% |
| Median Age | 36 | 33.5 | 37.3 |
| Households | 53,943 | 15,917 | 116,716,292 |
| Household Size | 2.3 | 2.83 | 2.58 |
| Male Population | 47.81% | 49.43% | 49.27% |
| Female Population | 52.19% | 50.57% | 50.96% |
| Married Population | 42.45% | 59.86% | 47.02% |
| Single Population | 57.55% | 40.14% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.46% | 8.71% | 6.56% |
| Age 5 to 9 | 7.02% | 10.37% | 6.61% |
| Age 10 to 14 | 6.18% | 9.30% | 6.71% |
| Age 15 to 17 | 3.74% | 4.54% | 4.21% |
| Age 18 to 20 | 2.58% | 1.91% | 2.95% |
| Age 21 to 24 | 7.22% | 3.84% | 7.01% |
| Age 25 to 34 | 14.59% | 13.68% | 13.33% |
| Age 35 to 44 | 11.54% | 20.33% | 13.33% |
| Age 45 to 49 | 13.40% | 14.55% | 14.61% |
| Age 50 to 54 | 13.40% | 14.55% | 14.61% |
| Age 55 to 59 | 12.01% | 7.96% | 11.84% |
| Age 60 to 64 | 12.01% | 7.96% | 11.84% |
| Age 65 to 74 | 6.85% | 3.31% | 7.05% |
| Age 75 to 84 | 5.04% | 1.10% | 4.24% |
| Age 85 and over | 2.37% | 0.40% | 1.78% |
| RACE | | | |
| White | 76.23% | 90.07% | 72.41% |
| Black | 11.31% | 1.53% | 12.61% |
| Asian | 1.35% | 3.23% | 4.75% |
| American Indian | 1.38% | 0.46% | 0.95% |
| Other | 9.73% | 4.72% | 9.28% |
| Hispanic | 7.17% | 6.62% | 16.35% |
| Non-Hispanic | 92.83% | 93.38% | 83.65% |
| FAMILY | | | |
| Married, w/children | 25.77% | 50.21% | 30.42% |
| Married, no children | 40.76% | 32.63% | 42.46% |
| Single, w/children | 20.60% | 12.20% | 14.39% |
| Single, no children | 12.87% | 4.96% | 12.73% |
| Divorced | 16.41% | 9.18% | 10.62% |
| Separated | 3.63% | 3.45% | 4.97% |
| Widowed | 8.55% | 2.11% | 6.14% |
| Now Married | 41.69% | 60.24% | 46.32% |
| Never Married | 29.72% | 25.02% | 31.95% |
