| PEOPLE | Solon | Diamond Bar | United States |
| Population | 23,348 | 55,544 | 308,035,306 |
| Pop. Density | 1,147 | 3,733 | 87 |
| Pop. Change | 7.71% | -2.17% | 8.07% |
| Median Age | 43 | 41 | 37.3 |
| Households | 8,352 | 17,880 | 116,716,292 |
| Household Size | 2.78 | 3.09 | 2.58 |
| Male Population | 48.75% | 48.78% | 49.27% |
| Female Population | 51.25% | 51.22% | 50.96% |
| Married Population | 62.13% | 52.81% | 47.02% |
| Single Population | 37.87% | 47.19% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 4.54% | 4.30% | 6.56% |
| Age 5 to 9 | 7.75% | 5.16% | 6.61% |
| Age 10 to 14 | 9.46% | 6.77% | 6.71% |
| Age 15 to 17 | 6.08% | 5.19% | 4.21% |
| Age 18 to 20 | 2.10% | 2.91% | 2.95% |
| Age 21 to 24 | 3.10% | 7.15% | 7.01% |
| Age 25 to 34 | 6.29% | 11.00% | 13.33% |
| Age 35 to 44 | 14.01% | 13.46% | 13.33% |
| Age 45 to 49 | 19.07% | 17.77% | 14.61% |
| Age 50 to 54 | 19.07% | 17.77% | 14.61% |
| Age 55 to 59 | 15.15% | 14.61% | 11.84% |
| Age 60 to 64 | 15.15% | 14.61% | 11.84% |
| Age 65 to 74 | 6.64% | 7.24% | 7.05% |
| Age 75 to 84 | 4.05% | 3.35% | 4.24% |
| Age 85 and over | 1.75% | 1.09% | 1.78% |
| RACE | | | |
| White | 77.54% | 33.19% | 72.41% |
| Black | 10.60% | 4.12% | 12.61% |
| Asian | 10.04% | 52.47% | 4.75% |
| American Indian | 0.06% | 0.32% | 0.95% |
| Other | 1.76% | 9.90% | 9.28% |
| Hispanic | 0.89% | 9.34% | 16.35% |
| Non-Hispanic | 99.11% | 90.66% | 83.65% |
| FAMILY | | | |
| Married, w/children | 41.08% | 35.05% | 30.42% |
| Married, no children | 43.65% | 44.40% | 42.46% |
| Single, w/children | 8.63% | 7.26% | 14.39% |
| Single, no children | 6.63% | 13.29% | 12.73% |
| Divorced | 8.81% | 7.13% | 10.62% |
| Separated | 1.49% | 4.25% | 4.97% |
| Widowed | 4.77% | 4.03% | 6.14% |
| Now Married | 61.96% | 53.04% | 46.32% |
| Never Married | 22.98% | 31.55% | 31.95% |