| PEOPLE | Mansfield | Keller | United States |
| Population | 56,368 | 39,627 | 308,035,306 |
| Pop. Density | 1,549 | 2,147 | 87 |
| Pop. Change | 106.38% | 51.00% | 8.07% |
| Median Age | 33.9 | 39.9 | 37.3 |
| Households | 18,305 | 13,514 | 116,716,292 |
| Household Size | 3.06 | 2.91 | 2.58 |
| Male Population | 49.09% | 48.77% | 49.27% |
| Female Population | 50.91% | 51.23% | 50.96% |
| Married Population | 62.51% | 70.80% | 47.02% |
| Single Population | 37.49% | 29.20% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.23% | 5.47% | 6.56% |
| Age 5 to 9 | 9.33% | 8.48% | 6.61% |
| Age 10 to 14 | 9.70% | 10.32% | 6.71% |
| Age 15 to 17 | 5.61% | 6.10% | 4.21% |
| Age 18 to 20 | 2.66% | 2.33% | 2.95% |
| Age 21 to 24 | 4.90% | 3.51% | 7.01% |
| Age 25 to 34 | 12.07% | 7.00% | 13.33% |
| Age 35 to 44 | 17.92% | 16.59% | 13.33% |
| Age 45 to 49 | 15.27% | 20.30% | 14.61% |
| Age 50 to 54 | 15.27% | 20.30% | 14.61% |
| Age 55 to 59 | 8.77% | 11.31% | 11.84% |
| Age 60 to 64 | 8.77% | 11.31% | 11.84% |
| Age 65 to 74 | 4.10% | 4.79% | 7.05% |
| Age 75 to 84 | 1.83% | 2.65% | 4.24% |
| Age 85 and over | 0.60% | 1.12% | 1.78% |
| RACE | | | |
| White | 73.53% | 89.60% | 72.41% |
| Black | 14.16% | 2.38% | 12.61% |
| Asian | 3.71% | 3.78% | 4.75% |
| American Indian | 0.56% | 0.50% | 0.95% |
| Other | 8.04% | 3.74% | 9.28% |
| Hispanic | 0.56% | 0.82% | 16.35% |
| Non-Hispanic | 99.44% | 99.18% | 83.65% |
| FAMILY | | | |
| Married, w/children | 46.44% | 46.88% | 30.42% |
| Married, no children | 34.53% | 40.52% | 42.46% |
| Single, w/children | 12.20% | 7.85% | 14.39% |
| Single, no children | 6.83% | 4.74% | 12.73% |
| Divorced | 7.70% | 6.34% | 10.62% |
| Separated | 4.30% | 1.64% | 4.97% |
| Widowed | 3.54% | 2.46% | 6.14% |
| Now Married | 62.13% | 70.30% | 46.32% |
| Never Married | 22.33% | 19.26% | 31.95% |
