| PEOPLE | Mechanicsburg | Fall River | United States |
| Population | 8,981 | 88,857 | 308,035,306 |
| Pop. Density | 3,726 | 2,682 | 87 |
| Pop. Change | 0.57% | -4.10% | 8.07% |
| Median Age | 39.9 | 38 | 37.3 |
| Households | 4,028 | 38,457 | 116,716,292 |
| Household Size | 2.22 | 2.27 | 2.58 |
| Male Population | 49.09% | 47.48% | 49.27% |
| Female Population | 50.91% | 52.52% | 50.96% |
| Married Population | 50.12% | 37.87% | 47.02% |
| Single Population | 49.88% | 62.13% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.70% | 6.46% | 6.56% |
| Age 5 to 9 | 5.51% | 5.72% | 6.61% |
| Age 10 to 14 | 5.95% | 5.56% | 6.71% |
| Age 15 to 17 | 3.38% | 3.72% | 4.21% |
| Age 18 to 20 | 1.88% | 2.62% | 2.95% |
| Age 21 to 24 | 6.14% | 7.09% | 7.01% |
| Age 25 to 34 | 15.54% | 14.86% | 13.33% |
| Age 35 to 44 | 12.66% | 13.61% | 13.33% |
| Age 45 to 49 | 15.10% | 13.92% | 14.61% |
| Age 50 to 54 | 15.10% | 13.92% | 14.61% |
| Age 55 to 59 | 12.50% | 11.31% | 11.84% |
| Age 60 to 64 | 12.50% | 11.31% | 11.84% |
| Age 65 to 74 | 8.12% | 7.08% | 7.05% |
| Age 75 to 84 | 5.66% | 5.17% | 4.24% |
| Age 85 and over | 1.86% | 2.87% | 1.78% |
| RACE | | | |
| White | 92.33% | 87.05% | 72.41% |
| Black | 2.19% | 3.90% | 12.61% |
| Asian | 1.77% | 2.56% | 4.75% |
| American Indian | 0.33% | 0.28% | 0.95% |
| Other | 3.37% | 6.21% | 9.28% |
| Hispanic | 15.19% | 0.53% | 16.35% |
| Non-Hispanic | 84.81% | 99.47% | 83.65% |
| FAMILY | | | |
| Married, w/children | 27.59% | 21.39% | 30.42% |
| Married, no children | 47.36% | 38.14% | 42.46% |
| Single, w/children | 14.22% | 24.42% | 14.39% |
| Single, no children | 10.83% | 16.06% | 12.73% |
| Divorced | 12.05% | 11.35% | 10.62% |
| Separated | 2.14% | 4.97% | 4.97% |
| Widowed | 5.75% | 9.78% | 6.14% |
| Now Married | 50.39% | 37.26% | 46.32% |
| Never Married | 29.67% | 36.63% | 31.95% |
