| PEOPLE | Rockford township | Topeka | United States |
| Population | 178,527 | 127,473 | 308,035,306 |
| Pop. Density | 1,609 | 2,119 | 87 |
| Pop. Change | -0.26% | 2.99% | 8.07% |
| Median Age | 37.6 | 36 | 37.3 |
| Households | 71,281 | 53,943 | 116,716,292 |
| Household Size | 2.45 | 2.3 | 2.58 |
| Male Population | 48.32% | 47.81% | 49.27% |
| Female Population | 51.68% | 52.19% | 50.96% |
| Married Population | 40.45% | 42.45% | 47.02% |
| Single Population | 59.55% | 57.55% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.11% | 7.46% | 6.56% |
| Age 5 to 9 | 6.82% | 7.02% | 6.61% |
| Age 10 to 14 | 6.81% | 6.18% | 6.71% |
| Age 15 to 17 | 4.07% | 3.74% | 4.21% |
| Age 18 to 20 | 2.61% | 2.58% | 2.95% |
| Age 21 to 24 | 6.28% | 7.22% | 7.01% |
| Age 25 to 34 | 13.06% | 14.59% | 13.33% |
| Age 35 to 44 | 12.48% | 11.54% | 13.33% |
| Age 45 to 49 | 13.99% | 13.40% | 14.61% |
| Age 50 to 54 | 13.99% | 13.40% | 14.61% |
| Age 55 to 59 | 11.88% | 12.01% | 11.84% |
| Age 60 to 64 | 11.88% | 12.01% | 11.84% |
| Age 65 to 74 | 7.12% | 6.85% | 7.05% |
| Age 75 to 84 | 5.11% | 5.04% | 4.24% |
| Age 85 and over | 2.65% | 2.37% | 1.78% |
| RACE | | | |
| White | 69.42% | 76.23% | 72.41% |
| Black | 17.73% | 11.31% | 12.61% |
| Asian | 2.57% | 1.35% | 4.75% |
| American Indian | 0.39% | 1.38% | 0.95% |
| Other | 9.90% | 9.73% | 9.28% |
| Hispanic | 2.91% | 7.17% | 16.35% |
| Non-Hispanic | 97.09% | 92.83% | 83.65% |
| FAMILY | | | |
| Married, w/children | 24.25% | 25.77% | 30.42% |
| Married, no children | 40.69% | 40.76% | 42.46% |
| Single, w/children | 20.59% | 20.60% | 14.39% |
| Single, no children | 14.46% | 12.87% | 12.73% |
| Divorced | 13.64% | 16.41% | 10.62% |
| Separated | 4.65% | 3.63% | 4.97% |
| Widowed | 8.07% | 8.55% | 6.14% |
| Now Married | 41.17% | 41.69% | 46.32% |
| Never Married | 32.46% | 29.72% | 31.95% |
