| PEOPLE | San Antonio | Iron Mountain | United States |
| Population | 1,327,407 | 7,624 | 308,035,306 |
| Pop. Density | 2,880 | 1,035 | 87 |
| Pop. Change | 16.41% | -7.05% | 8.07% |
| Median Age | 32.8 | 42.4 | 37.3 |
| Households | 479,642 | 3,362 | 116,716,292 |
| Household Size | 2.7 | 2.2 | 2.58 |
| Male Population | 48.79% | 49.17% | 49.27% |
| Female Population | 51.21% | 50.83% | 50.96% |
| Married Population | 40.40% | 48.47% | 47.02% |
| Single Population | 59.60% | 51.53% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 7.57% | 5.52% | 6.56% |
| Age 5 to 9 | 7.48% | 6.16% | 6.61% |
| Age 10 to 14 | 7.34% | 6.26% | 6.71% |
| Age 15 to 17 | 4.43% | 4.66% | 4.21% |
| Age 18 to 20 | 3.29% | 2.52% | 2.95% |
| Age 21 to 24 | 8.11% | 5.44% | 7.01% |
| Age 25 to 34 | 14.85% | 11.18% | 13.33% |
| Age 35 to 44 | 13.23% | 11.84% | 13.33% |
| Age 45 to 49 | 13.17% | 16.46% | 14.61% |
| Age 50 to 54 | 13.17% | 16.46% | 14.61% |
| Age 55 to 59 | 10.08% | 12.75% | 11.84% |
| Age 60 to 64 | 10.08% | 12.75% | 11.84% |
| Age 65 to 74 | 5.62% | 7.21% | 7.05% |
| Age 75 to 84 | 3.46% | 6.40% | 4.24% |
| Age 85 and over | 1.36% | 3.59% | 1.78% |
| RACE | | | |
| White | 72.58% | 96.31% | 72.41% |
| Black | 6.88% | 0.46% | 12.61% |
| Asian | 2.43% | 0.66% | 4.75% |
| American Indian | 0.89% | 0.63% | 0.95% |
| Other | 17.23% | 1.94% | 9.28% |
| Hispanic | 12.08% | 0.93% | 16.35% |
| Non-Hispanic | 87.92% | 99.07% | 83.65% |
| FAMILY | | | |
| Married, w/children | 29.55% | 27.06% | 30.42% |
| Married, no children | 34.98% | 46.57% | 42.46% |
| Single, w/children | 18.79% | 16.49% | 14.39% |
| Single, no children | 16.67% | 9.88% | 12.73% |
| Divorced | 12.59% | 13.48% | 10.62% |
| Separated | 7.34% | 4.35% | 4.97% |
| Widowed | 5.90% | 10.05% | 6.14% |
| Now Married | 40.78% | 49.06% | 46.32% |
| Never Married | 33.39% | 23.07% | 31.95% |
