| PEOPLE | Arnold township | Leoti township | United States |
| Population | 20,808 | 2,234 | 308,035,306 |
| Pop. Density | 1,797 | 3 | 87 |
| Pop. Change | 0.95% | -11.73% | 8.07% |
| Median Age | 39 | 40.3 | 37.3 |
| Households | 8,097 | 891 | 116,716,292 |
| Household Size | 2.55 | 2.48 | 2.58 |
| Male Population | 48.72% | 51.16% | 49.27% |
| Female Population | 51.28% | 48.84% | 50.96% |
| Married Population | 54.06% | 65.45% | 47.02% |
| Single Population | 45.94% | 34.55% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.15% | 7.39% | 6.56% |
| Age 5 to 9 | 6.42% | 7.12% | 6.61% |
| Age 10 to 14 | 6.64% | 8.10% | 6.71% |
| Age 15 to 17 | 4.13% | 4.61% | 4.21% |
| Age 18 to 20 | 2.72% | 1.43% | 2.95% |
| Age 21 to 24 | 6.00% | 3.22% | 7.01% |
| Age 25 to 34 | 12.57% | 11.50% | 13.33% |
| Age 35 to 44 | 13.41% | 11.68% | 13.33% |
| Age 45 to 49 | 15.67% | 14.23% | 14.61% |
| Age 50 to 54 | 15.67% | 14.23% | 14.61% |
| Age 55 to 59 | 11.84% | 12.76% | 11.84% |
| Age 60 to 64 | 11.84% | 12.76% | 11.84% |
| Age 65 to 74 | 8.08% | 8.86% | 7.05% |
| Age 75 to 84 | 4.86% | 6.00% | 4.24% |
| Age 85 and over | 1.51% | 3.09% | 1.78% |
| RACE | | | |
| White | 96.31% | 88.27% | 72.41% |
| Black | 0.55% | 0.85% | 12.61% |
| Asian | 0.89% | 0.13% | 4.75% |
| American Indian | 0.23% | 0.49% | 0.95% |
| Other | 2.02% | 10.25% | 9.28% |
| Hispanic | 1.26% | 2.32% | 16.35% |
| Non-Hispanic | 98.74% | 97.68% | 83.65% |
| FAMILY | | | |
| Married, w/children | 29.12% | 31.97% | 30.42% |
| Married, no children | 44.88% | 53.29% | 42.46% |
| Single, w/children | 13.46% | 9.09% | 14.39% |
| Single, no children | 12.56% | 5.64% | 12.73% |
| Divorced | 13.12% | 7.96% | 10.62% |
| Separated | 2.18% | 3.14% | 4.97% |
| Widowed | 6.10% | 5.49% | 6.14% |
| Now Married | 54.08% | 64.17% | 46.32% |
| Never Married | 24.53% | 19.24% | 31.95% |
