| PEOPLE | Plano | Merriam | United States |
| Population | 259,841 | 11,003 | 308,035,306 |
| Pop. Density | 3,630 | 2,549 | 87 |
| Pop. Change | 19.94% | -0.07% | 8.07% |
| Median Age | 37 | 37.5 | 37.3 |
| Households | 99,131 | 4,900 | 116,716,292 |
| Household Size | 2.61 | 2.2 | 2.58 |
| Male Population | 48.91% | 47.84% | 49.27% |
| Female Population | 51.09% | 52.16% | 50.96% |
| Married Population | 55.96% | 43.37% | 47.02% |
| Single Population | 44.04% | 56.63% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 6.30% | 6.43% | 6.56% |
| Age 5 to 9 | 7.27% | 5.43% | 6.61% |
| Age 10 to 14 | 7.72% | 5.33% | 6.71% |
| Age 15 to 17 | 4.58% | 2.95% | 4.21% |
| Age 18 to 20 | 2.23% | 1.84% | 2.95% |
| Age 21 to 24 | 5.25% | 6.63% | 7.01% |
| Age 25 to 34 | 13.50% | 17.99% | 13.33% |
| Age 35 to 44 | 15.78% | 12.89% | 13.33% |
| Age 45 to 49 | 16.93% | 13.97% | 14.61% |
| Age 50 to 54 | 16.93% | 13.97% | 14.61% |
| Age 55 to 59 | 11.58% | 12.63% | 11.84% |
| Age 60 to 64 | 11.58% | 12.63% | 11.84% |
| Age 65 to 74 | 5.53% | 7.23% | 7.05% |
| Age 75 to 84 | 2.36% | 4.34% | 4.24% |
| Age 85 and over | 0.97% | 2.37% | 1.78% |
| RACE | | | |
| White | 66.91% | 83.36% | 72.41% |
| Black | 7.58% | 6.05% | 12.61% |
| Asian | 16.86% | 2.56% | 4.75% |
| American Indian | 0.44% | 0.46% | 0.95% |
| Other | 8.21% | 7.56% | 9.28% |
| Hispanic | 6.00% | 31.39% | 16.35% |
| Non-Hispanic | 94.00% | 68.61% | 83.65% |
| FAMILY | | | |
| Married, w/children | 40.16% | 26.90% | 30.42% |
| Married, no children | 40.73% | 46.16% | 42.46% |
| Single, w/children | 10.93% | 13.45% | 14.39% |
| Single, no children | 8.18% | 13.49% | 12.73% |
| Divorced | 9.86% | 15.73% | 10.62% |
| Separated | 4.59% | 3.70% | 4.97% |
| Widowed | 3.03% | 6.17% | 6.14% |
| Now Married | 55.82% | 43.38% | 46.32% |
| Never Married | 26.71% | 31.02% | 31.95% |
