| PEOPLE | Plymouth | Lansing | United States |
| Population | 9,132 | 114,297 | 308,035,306 |
| Pop. Density | 4,130 | 3,171 | 87 |
| Pop. Change | -3.85% | -6.03% | 8.07% |
| Median Age | 39.1 | 32.4 | 37.3 |
| Households | 4,314 | 48,450 | 116,716,292 |
| Household Size | 2.08 | 2.34 | 2.58 |
| Male Population | 47.96% | 48.41% | 49.27% |
| Female Population | 52.04% | 51.59% | 50.96% |
| Married Population | 43.93% | 36.88% | 47.02% |
| Single Population | 56.07% | 63.12% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.72% | 7.65% | 6.56% |
| Age 5 to 9 | 6.19% | 6.78% | 6.61% |
| Age 10 to 14 | 5.51% | 6.18% | 6.71% |
| Age 15 to 17 | 3.07% | 3.59% | 4.21% |
| Age 18 to 20 | 1.29% | 2.84% | 2.95% |
| Age 21 to 24 | 4.40% | 9.36% | 7.01% |
| Age 25 to 34 | 15.54% | 17.79% | 13.33% |
| Age 35 to 44 | 16.27% | 12.36% | 13.33% |
| Age 45 to 49 | 14.58% | 13.02% | 14.61% |
| Age 50 to 54 | 14.58% | 13.02% | 14.61% |
| Age 55 to 59 | 12.41% | 10.76% | 11.84% |
| Age 60 to 64 | 12.41% | 10.76% | 11.84% |
| Age 65 to 74 | 5.84% | 5.13% | 7.05% |
| Age 75 to 84 | 5.25% | 3.18% | 4.24% |
| Age 85 and over | 2.95% | 1.35% | 1.78% |
| RACE | | | |
| White | 94.15% | 61.23% | 72.41% |
| Black | 1.60% | 23.74% | 12.61% |
| Asian | 2.18% | 3.72% | 4.75% |
| American Indian | 0.26% | 0.77% | 0.95% |
| Other | 1.81% | 10.53% | 9.28% |
| Hispanic | 0.82% | 0.24% | 16.35% |
| Non-Hispanic | 99.18% | 99.76% | 83.65% |
| FAMILY | | | |
| Married, w/children | 36.43% | 23.04% | 30.42% |
| Married, no children | 42.61% | 33.91% | 42.46% |
| Single, w/children | 11.72% | 25.33% | 14.39% |
| Single, no children | 9.24% | 17.72% | 12.73% |
| Divorced | 14.83% | 14.77% | 10.62% |
| Separated | 2.92% | 3.24% | 4.97% |
| Widowed | 7.81% | 5.40% | 6.14% |
| Now Married | 43.85% | 36.38% | 46.32% |
| Never Married | 30.59% | 40.21% | 31.95% |