| Statistic | Lago Vista-South Southwest | San Antonio | Texas |
| Population | 867 | 1,529,133 | 28,995,881 |
| Population density (sq mi) | 1,095 | 3,068 | 113 |
| Median age | 34.6 | 33.8 | 34.2 |
| Male/Female ratio | 1.0:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | n/a | 47% | 56% |
| Families w/ Kids under 18 | 39% | 45% | 48% |
| Speak English | n/a | 58% | 65% |
| Speak Spanish | n/a | 38% | 30% |
| Race | Lago Vista-South Southwest | San Antonio | Texas |
| White | 85.54% | 71.90% | 74.84% |
| Black | 2.52% | 6.78% | 11.95% |
| Asian | 0.00% | 2.98% | 4.36% |
| American Indian | 0.00% | 0.70% | 0.48% |
| Native Hawaiian | 0.00% | 0.08% | 0.08% |
| Mixed race | 0.65% | 10.13% | 2.50% |
| Other race | 11.29% | 7.43% | 5.79% |
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