| PEOPLE | Greenville | Idaho Falls | United States |
| Population | 84,554 | 56,813 | 308,035,306 |
| Pop. Density | 2,443 | 2,542 | 87 |
| Pop. Change | 29.86% | 11.30% | 8.07% |
| Median Age | 26.2 | 32.4 | 37.3 |
| Households | 36,071 | 21,203 | 116,716,292 |
| Household Size | 2.21 | 2.64 | 2.58 |
| Male Population | 45.84% | 49.53% | 49.27% |
| Female Population | 54.16% | 50.47% | 50.96% |
| Married Population | 32.84% | 53.51% | 47.02% |
| Single Population | 67.16% | 46.49% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.13% | 9.21% | 6.56% |
| Age 5 to 9 | 5.05% | 8.42% | 6.61% |
| Age 10 to 14 | 4.67% | 7.27% | 6.71% |
| Age 15 to 17 | 2.87% | 4.44% | 4.21% |
| Age 18 to 20 | 8.57% | 2.50% | 2.95% |
| Age 21 to 24 | 20.27% | 6.70% | 7.01% |
| Age 25 to 34 | 16.23% | 15.15% | 13.33% |
| Age 35 to 44 | 10.40% | 11.24% | 13.33% |
| Age 45 to 49 | 9.56% | 12.78% | 14.61% |
| Age 50 to 54 | 9.56% | 12.78% | 14.61% |
| Age 55 to 59 | 7.92% | 10.52% | 11.84% |
| Age 60 to 64 | 7.92% | 10.52% | 11.84% |
| Age 65 to 74 | 4.11% | 5.94% | 7.05% |
| Age 75 to 84 | 2.85% | 3.91% | 4.24% |
| Age 85 and over | 1.36% | 1.93% | 1.78% |
| RACE | | | |
| White | 56.27% | 89.26% | 72.41% |
| Black | 36.98% | 0.70% | 12.61% |
| Asian | 2.39% | 1.01% | 4.75% |
| American Indian | 0.36% | 0.97% | 0.95% |
| Other | 3.99% | 8.06% | 9.28% |
| Hispanic | 8.55% | 2.86% | 16.35% |
| Non-Hispanic | 91.45% | 97.14% | 83.65% |
| FAMILY | | | |
| Married, w/children | 24.23% | 35.53% | 30.42% |
| Married, no children | 34.28% | 41.10% | 42.46% |
| Single, w/children | 24.50% | 14.79% | 14.39% |
| Single, no children | 17.00% | 8.58% | 12.73% |
| Divorced | 8.31% | 15.63% | 10.62% |
| Separated | 5.60% | 3.91% | 4.97% |
| Widowed | 4.85% | 5.66% | 6.14% |
| Now Married | 32.81% | 53.39% | 46.32% |
| Never Married | 48.43% | 21.41% | 31.95% |
