| PEOPLE | Marshall township | Sonora | United States |
| Population | 3,115 | 4,903 | 308,035,306 |
| Pop. Density | 100 | 1,600 | 87 |
| Pop. Change | 7.27% | 7.21% | 8.07% |
| Median Age | 44.1 | 39.6 | 37.3 |
| Households | 1,203 | 2,199 | 116,716,292 |
| Household Size | 2.55 | 2.12 | 2.58 |
| Male Population | 48.51% | 48.19% | 49.27% |
| Female Population | 51.49% | 51.81% | 50.96% |
| Married Population | 64.04% | 30.90% | 47.02% |
| Single Population | 35.96% | 69.10% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 4.78% | 5.61% | 6.56% |
| Age 5 to 9 | 6.13% | 5.67% | 6.61% |
| Age 10 to 14 | 8.22% | 5.22% | 6.71% |
| Age 15 to 17 | 5.10% | 3.39% | 4.21% |
| Age 18 to 20 | 2.28% | 2.90% | 2.95% |
| Age 21 to 24 | 3.60% | 7.83% | 7.01% |
| Age 25 to 34 | 8.15% | 13.87% | 13.33% |
| Age 35 to 44 | 13.16% | 11.95% | 13.33% |
| Age 45 to 49 | 17.46% | 13.24% | 14.61% |
| Age 50 to 54 | 17.46% | 13.24% | 14.61% |
| Age 55 to 59 | 14.96% | 13.77% | 11.84% |
| Age 60 to 64 | 14.96% | 13.77% | 11.84% |
| Age 65 to 74 | 9.66% | 7.89% | 7.05% |
| Age 75 to 84 | 4.78% | 5.59% | 4.24% |
| Age 85 and over | 1.70% | 3.08% | 1.78% |
| RACE | | | |
| White | 96.89% | 89.78% | 72.41% |
| Black | 0.42% | 0.49% | 12.61% |
| Asian | 0.39% | 1.61% | 4.75% |
| American Indian | 0.55% | 1.94% | 0.95% |
| Other | 1.77% | 6.18% | 9.28% |
| Hispanic | 1.37% | 19.21% | 16.35% |
| Non-Hispanic | 98.63% | 80.79% | 83.65% |
| FAMILY | | | |
| Married, w/children | 32.27% | 21.74% | 30.42% |
| Married, no children | 53.46% | 40.16% | 42.46% |
| Single, w/children | 8.12% | 24.08% | 14.39% |
| Single, no children | 6.04% | 14.02% | 12.73% |
| Divorced | 8.16% | 17.08% | 10.62% |
| Separated | 1.43% | 4.92% | 4.97% |
| Widowed | 5.38% | 8.26% | 6.14% |
| Now Married | 62.94% | 31.24% | 46.32% |
| Never Married | 22.09% | 38.50% | 31.95% |
