| PEOPLE | Boise City | Grass Valley | United States |
| Population | 205,671 | 12,860 | 308,035,306 |
| Pop. Density | 2,592 | 2,711 | 87 |
| Pop. Change | 8.01% | 5.40% | 8.07% |
| Median Age | 35.3 | 43.3 | 37.3 |
| Households | 85,704 | 6,077 | 116,716,292 |
| Household Size | 2.35 | 2.08 | 2.58 |
| Male Population | 49.44% | 44.11% | 49.27% |
| Female Population | 50.56% | 55.89% | 50.96% |
| Married Population | 47.18% | 33.78% | 47.02% |
| Single Population | 52.82% | 66.22% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.40% | 5.86% | 6.56% |
| Age 5 to 9 | 6.29% | 5.33% | 6.61% |
| Age 10 to 14 | 6.20% | 5.54% | 6.71% |
| Age 15 to 17 | 3.85% | 3.69% | 4.21% |
| Age 18 to 20 | 2.94% | 2.67% | 2.95% |
| Age 21 to 24 | 8.25% | 6.24% | 7.01% |
| Age 25 to 34 | 15.62% | 12.33% | 13.33% |
| Age 35 to 44 | 13.15% | 10.09% | 13.33% |
| Age 45 to 49 | 14.39% | 12.46% | 14.61% |
| Age 50 to 54 | 14.39% | 12.46% | 14.61% |
| Age 55 to 59 | 11.76% | 12.29% | 11.84% |
| Age 60 to 64 | 11.76% | 12.29% | 11.84% |
| Age 65 to 74 | 5.92% | 8.30% | 7.05% |
| Age 75 to 84 | 3.45% | 7.57% | 4.24% |
| Age 85 and over | 1.79% | 7.64% | 1.78% |
| RACE | | | |
| White | 88.97% | 89.37% | 72.41% |
| Black | 1.48% | 0.36% | 12.61% |
| Asian | 3.16% | 1.46% | 4.75% |
| American Indian | 0.68% | 1.62% | 0.95% |
| Other | 5.70% | 7.19% | 9.28% |
| Hispanic | 1.84% | 16.60% | 16.35% |
| Non-Hispanic | 98.16% | 83.40% | 83.65% |
| FAMILY | | | |
| Married, w/children | 31.53% | 20.06% | 30.42% |
| Married, no children | 43.38% | 36.17% | 42.46% |
| Single, w/children | 14.95% | 27.46% | 14.39% |
| Single, no children | 10.14% | 16.31% | 12.73% |
| Divorced | 14.44% | 20.00% | 10.62% |
| Separated | 3.35% | 4.44% | 4.97% |
| Widowed | 4.97% | 10.70% | 6.14% |
| Now Married | 47.44% | 34.44% | 46.32% |
| Never Married | 29.79% | 30.41% | 31.95% |
