| PEOPLE | Arlington | Jacksonville | United States |
| Population | 207,627 | 821,784 | 308,035,306 |
| Pop. Density | 7,994 | 1,100 | 87 |
| Pop. Change | 11.31% | 12.82% | 8.07% |
| Median Age | 33.6 | 35.5 | 37.3 |
| Households | 98,050 | 323,106 | 116,716,292 |
| Household Size | 2.08 | 2.48 | 2.58 |
| Male Population | 49.85% | 48.47% | 49.27% |
| Female Population | 50.15% | 51.53% | 50.96% |
| Married Population | 35.82% | 43.81% | 47.02% |
| Single Population | 64.18% | 56.19% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 5.67% | 7.00% | 6.56% |
| Age 5 to 9 | 4.42% | 6.51% | 6.61% |
| Age 10 to 14 | 3.52% | 6.46% | 6.71% |
| Age 15 to 17 | 2.10% | 3.92% | 4.21% |
| Age 18 to 20 | 1.26% | 2.89% | 2.95% |
| Age 21 to 24 | 8.53% | 7.63% | 7.01% |
| Age 25 to 34 | 27.65% | 14.88% | 13.33% |
| Age 35 to 44 | 15.83% | 13.57% | 13.33% |
| Age 45 to 49 | 12.39% | 14.79% | 14.61% |
| Age 50 to 54 | 12.39% | 14.79% | 14.61% |
| Age 55 to 59 | 9.94% | 11.41% | 11.84% |
| Age 60 to 64 | 9.94% | 11.41% | 11.84% |
| Age 65 to 74 | 4.86% | 6.09% | 7.05% |
| Age 75 to 84 | 2.48% | 3.42% | 4.24% |
| Age 85 and over | 1.36% | 1.43% | 1.78% |
| RACE | | | |
| White | 71.75% | 59.44% | 72.41% |
| Black | 8.49% | 30.72% | 12.61% |
| Asian | 9.60% | 4.29% | 4.75% |
| American Indian | 0.47% | 0.40% | 0.95% |
| Other | 9.69% | 5.16% | 9.28% |
| Hispanic | 1.24% | 5.16% | 16.35% |
| Non-Hispanic | 98.76% | 94.84% | 83.65% |
| FAMILY | | | |
| Married, w/children | 34.20% | 26.57% | 30.42% |
| Married, no children | 45.64% | 38.84% | 42.46% |
| Single, w/children | 8.71% | 18.85% | 14.39% |
| Single, no children | 11.45% | 15.74% | 12.73% |
| Divorced | 9.14% | 13.33% | 10.62% |
| Separated | 7.72% | 5.34% | 4.97% |
| Widowed | 3.89% | 5.91% | 6.14% |
| Now Married | 36.50% | 44.69% | 46.32% |
| Never Married | 42.75% | 30.72% | 31.95% |
