| PEOPLE | Idaho Falls | Boise City | United States |
| Population | 56,813 | 205,671 | 308,035,306 |
| Pop. Density | 2,542 | 2,592 | 87 |
| Pop. Change | 11.30% | 8.01% | 8.07% |
| Median Age | 32.4 | 35.3 | 37.3 |
| Households | 21,203 | 85,704 | 116,716,292 |
| Household Size | 2.64 | 2.35 | 2.58 |
| Male Population | 49.53% | 49.44% | 49.27% |
| Female Population | 50.47% | 50.56% | 50.96% |
| Married Population | 53.51% | 47.18% | 47.02% |
| Single Population | 46.49% | 52.82% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 9.21% | 6.40% | 6.56% |
| Age 5 to 9 | 8.42% | 6.29% | 6.61% |
| Age 10 to 14 | 7.27% | 6.20% | 6.71% |
| Age 15 to 17 | 4.44% | 3.85% | 4.21% |
| Age 18 to 20 | 2.50% | 2.94% | 2.95% |
| Age 21 to 24 | 6.70% | 8.25% | 7.01% |
| Age 25 to 34 | 15.15% | 15.62% | 13.33% |
| Age 35 to 44 | 11.24% | 13.15% | 13.33% |
| Age 45 to 49 | 12.78% | 14.39% | 14.61% |
| Age 50 to 54 | 12.78% | 14.39% | 14.61% |
| Age 55 to 59 | 10.52% | 11.76% | 11.84% |
| Age 60 to 64 | 10.52% | 11.76% | 11.84% |
| Age 65 to 74 | 5.94% | 5.92% | 7.05% |
| Age 75 to 84 | 3.91% | 3.45% | 4.24% |
| Age 85 and over | 1.93% | 1.79% | 1.78% |
| RACE | | | |
| White | 89.26% | 88.97% | 72.41% |
| Black | 0.70% | 1.48% | 12.61% |
| Asian | 1.01% | 3.16% | 4.75% |
| American Indian | 0.97% | 0.68% | 0.95% |
| Other | 8.06% | 5.70% | 9.28% |
| Hispanic | 2.86% | 1.84% | 16.35% |
| Non-Hispanic | 97.14% | 98.16% | 83.65% |
| FAMILY | | | |
| Married, w/children | 35.53% | 31.53% | 30.42% |
| Married, no children | 41.10% | 43.38% | 42.46% |
| Single, w/children | 14.79% | 14.95% | 14.39% |
| Single, no children | 8.58% | 10.14% | 12.73% |
| Divorced | 15.63% | 14.44% | 10.62% |
| Separated | 3.91% | 3.35% | 4.97% |
| Widowed | 5.66% | 4.97% | 6.14% |
| Now Married | 53.39% | 47.44% | 46.32% |
| Never Married | 21.41% | 29.79% | 31.95% |
