| PEOPLE | Gillette | Spokane | United States |
| Population | 29,087 | 208,916 | 308,035,306 |
| Pop. Density | 1,533 | 3,526 | 87 |
| Pop. Change | 46.01% | 5.97% | 8.07% |
| Median Age | 30.6 | 35 | 37.3 |
| Households | 10,975 | 87,271 | 116,716,292 |
| Household Size | 2.61 | 2.31 | 2.58 |
| Male Population | 52.29% | 48.75% | 49.27% |
| Female Population | 47.71% | 51.25% | 50.96% |
| Married Population | 49.88% | 42.19% | 47.02% |
| Single Population | 50.12% | 57.81% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 9.20% | 6.85% | 6.56% |
| Age 5 to 9 | 7.87% | 6.08% | 6.61% |
| Age 10 to 14 | 7.04% | 5.85% | 6.71% |
| Age 15 to 17 | 3.86% | 3.57% | 4.21% |
| Age 18 to 20 | 2.77% | 3.39% | 2.95% |
| Age 21 to 24 | 8.23% | 8.81% | 7.01% |
| Age 25 to 34 | 18.08% | 15.49% | 13.33% |
| Age 35 to 44 | 12.51% | 12.12% | 13.33% |
| Age 45 to 49 | 14.92% | 13.38% | 14.61% |
| Age 50 to 54 | 14.92% | 13.38% | 14.61% |
| Age 55 to 59 | 9.75% | 11.63% | 11.84% |
| Age 60 to 64 | 9.75% | 11.63% | 11.84% |
| Age 65 to 74 | 3.40% | 6.18% | 7.05% |
| Age 75 to 84 | 1.80% | 4.29% | 4.24% |
| Age 85 and over | 0.57% | 2.36% | 1.78% |
| RACE | | | |
| White | 92.24% | 86.66% | 72.41% |
| Black | 0.42% | 2.32% | 12.61% |
| Asian | 0.69% | 2.56% | 4.75% |
| American Indian | 1.22% | 1.99% | 0.95% |
| Other | 5.42% | 6.47% | 9.28% |
| Hispanic | 1.61% | 2.12% | 16.35% |
| Non-Hispanic | 98.39% | 97.88% | 83.65% |
| FAMILY | | | |
| Married, w/children | 35.72% | 27.70% | 30.42% |
| Married, no children | 38.27% | 40.59% | 42.46% |
| Single, w/children | 18.22% | 18.90% | 14.39% |
| Single, no children | 7.80% | 12.80% | 12.73% |
| Divorced | 14.98% | 15.62% | 10.62% |
| Separated | 5.29% | 2.67% | 4.97% |
| Widowed | 3.93% | 6.78% | 6.14% |
| Now Married | 49.85% | 42.23% | 46.32% |
| Never Married | 25.96% | 32.71% | 31.95% |
