| PEOPLE | Arlington | Denver | United States |
| Population | 11,517 | 600,158 | 308,035,306 |
| Pop. Density | 500 | 3,923 | 87 |
| Pop. Change | 279.21% | 8.88% | 8.07% |
| Median Age | 31.9 | 33.8 | 37.3 |
| Households | 3,582 | 263,107 | 116,716,292 |
| Household Size | 3.17 | 2.22 | 2.58 |
| Male Population | 48.97% | 50.00% | 49.27% |
| Female Population | 51.03% | 50.00% | 50.96% |
| Married Population | 44.59% | 36.72% | 47.02% |
| Single Population | 55.41% | 63.28% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 9.01% | 7.25% | 6.56% |
| Age 5 to 9 | 10.33% | 6.23% | 6.61% |
| Age 10 to 14 | 9.95% | 5.06% | 6.71% |
| Age 15 to 17 | 5.98% | 2.92% | 4.21% |
| Age 18 to 20 | 2.25% | 2.46% | 2.95% |
| Age 21 to 24 | 3.47% | 7.95% | 7.01% |
| Age 25 to 34 | 14.84% | 20.47% | 13.33% |
| Age 35 to 44 | 20.78% | 14.96% | 13.33% |
| Age 45 to 49 | 12.64% | 12.08% | 14.61% |
| Age 50 to 54 | 12.64% | 12.08% | 14.61% |
| Age 55 to 59 | 6.56% | 10.29% | 11.84% |
| Age 60 to 64 | 6.56% | 10.29% | 11.84% |
| Age 65 to 74 | 2.67% | 5.36% | 7.05% |
| Age 75 to 84 | 1.14% | 3.39% | 4.24% |
| Age 85 and over | 0.38% | 1.60% | 1.78% |
| RACE | | | |
| White | 81.24% | 68.93% | 72.41% |
| Black | 13.84% | 10.24% | 12.61% |
| Asian | 1.80% | 3.40% | 4.75% |
| American Indian | 0.16% | 1.37% | 0.95% |
| Other | 2.96% | 16.06% | 9.28% |
| Hispanic | 4.61% | 6.18% | 16.35% |
| Non-Hispanic | 95.39% | 93.82% | 83.65% |
| FAMILY | | | |
| Married, w/children | 55.31% | 30.29% | 30.42% |
| Married, no children | 27.85% | 38.30% | 42.46% |
| Single, w/children | 10.81% | 16.63% | 14.39% |
| Single, no children | 6.04% | 14.77% | 12.73% |
| Divorced | 8.47% | 13.56% | 10.62% |
| Separated | 3.41% | 6.38% | 4.97% |
| Widowed | 5.13% | 5.53% | 6.14% |
| Now Married | 45.43% | 37.00% | 46.32% |
| Never Married | 37.56% | 37.53% | 31.95% |
