| PEOPLE | Arlington | Montrose | United States |
| Population | 17,926 | 19,132 | 308,035,306 |
| Pop. Density | 1,937 | 1,075 | 87 |
| Pop. Change | 43.06% | 34.40% | 8.07% |
| Median Age | 34.3 | 39.9 | 37.3 |
| Households | 6,563 | 7,871 | 116,716,292 |
| Household Size | 2.69 | 2.38 | 2.58 |
| Male Population | 48.62% | 48.10% | 49.27% |
| Female Population | 51.38% | 51.90% | 50.96% |
| Married Population | 52.88% | 52.64% | 47.02% |
| Single Population | 47.12% | 47.36% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.58% | 7.04% | 6.56% |
| Age 5 to 9 | 7.79% | 7.05% | 6.61% |
| Age 10 to 14 | 7.87% | 6.49% | 6.71% |
| Age 15 to 17 | 5.04% | 3.90% | 4.21% |
| Age 18 to 20 | 2.74% | 2.00% | 2.95% |
| Age 21 to 24 | 5.90% | 5.29% | 7.01% |
| Age 25 to 34 | 14.05% | 12.26% | 13.33% |
| Age 35 to 44 | 15.18% | 11.89% | 13.33% |
| Age 45 to 49 | 13.35% | 12.48% | 14.61% |
| Age 50 to 54 | 13.35% | 12.48% | 14.61% |
| Age 55 to 59 | 9.17% | 12.06% | 11.84% |
| Age 60 to 64 | 9.17% | 12.06% | 11.84% |
| Age 65 to 74 | 5.66% | 9.25% | 7.05% |
| Age 75 to 84 | 3.77% | 6.50% | 4.24% |
| Age 85 and over | 1.89% | 3.78% | 1.78% |
| RACE | | | |
| White | 85.64% | 86.28% | 72.41% |
| Black | 1.18% | 0.47% | 12.61% |
| Asian | 3.26% | 0.72% | 4.75% |
| American Indian | 1.42% | 1.24% | 0.95% |
| Other | 8.50% | 11.29% | 9.28% |
| Hispanic | 0.00% | 2.61% | 16.35% |
| Non-Hispanic | 100.00% | 97.39% | 83.65% |
| FAMILY | | | |
| Married, w/children | 37.70% | 29.34% | 30.42% |
| Married, no children | 35.86% | 47.65% | 42.46% |
| Single, w/children | 16.55% | 14.20% | 14.39% |
| Single, no children | 9.89% | 8.81% | 12.73% |
| Divorced | 13.13% | 14.71% | 10.62% |
| Separated | 4.44% | 5.96% | 4.97% |
| Widowed | 5.32% | 10.32% | 6.14% |
| Now Married | 53.18% | 51.71% | 46.32% |
| Never Married | 23.93% | 17.30% | 31.95% |
