| | Universal City, TX | Live Oak, TX | United States |
| Population | 19,679 | 15,554 | 329,725,481 |
| Female Population | 49.4% | 54.2% | 50.5% |
| Male Population | 50.6% | 45.8% | 49.5% |
| Median Age | 35.4 | 35.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 18,591 | 13,232 | 309,327,143 |
| Population - 2000 | 14,849 | 9,156 | 285,036,114 |
| Population - 1990 | 13,057 | 10,023 | 251,960,433 |
| Pop. 2000 to Now | 41.5% | 82.0% | 15.6% |
| Pop. 1990 to Now | 60.9% | 66.2% | 30.8% |
| space4 | | | |
| Population Density | 3,533.0 | 3,270.4 | 93.4 |
| Land Area | 5.6 | 4.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Universal City, TX | Live Oak, TX | United States |
| Age 0 to 4 | 5.0% | 8.6% | 5.9% |
| Age 5 to 9 | 7.6% | 5.3% | 6.1% |
| Age 10 to 14 | 9.5% | 5.8% | 6.6% |
| Age 15 to 17 | 2.9% | 2.7% | 3.9% |
| Age 18 to 20 | 3.4% | 2.1% | 4.0% |
| Age 21 to 24 | 6.5% | 7.1% | 5.2% |
| Age 25 to 34 | 14.5% | 18.3% | 13.8% |
| Age 35 to 44 | 11.8% | 13.1% | 12.9% |
| Age 45 to 54 | 11.2% | 11.8% | 12.6% |
| Age 55 to 59 | 8.2% | 7.8% | 6.7% |
| Age 60 to 64 | 6.2% | 6.5% | 6.3% |
| Age 65 to 74 | 7.8% | 6.6% | 9.6% |
| Age 75 to 84 | 4.9% | 3.4% | 4.5% |
| Age 85 and over | 0.5% | 1.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Universal City, TX | Live Oak, TX | United States |
| White | 42.2% | 35.0% | 59.4% |
| Black | 10.6% | 15.2% | 12.2% |
| Asian | 2.1% | 5.7% | 5.6% |
| Native American | 0.0% | 0.7% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.1% | 0.0% | 0.4% |
| Two or More Races | 3.7% | 4.6% | 3.2% |
| Hispanic | 41.1% | 38.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Universal City, TX | Live Oak, TX | United States |
| Married Population | 51.0% | 54.7% | 49.8% |
| Currently Married | 49.1% | 52.5% | 48.0% |
| Married but Separated | 1.8% | 2.2% | 1.8% |
| Single Population | 49.0% | 45.3% | 50.2% |
| Never Married | 30.6% | 26.2% | 33.8% |
| Divorced | 14.1% | 12.8% | 10.8% |
| Widowed | 4.3% | 6.3% | 5.6% |
| space5 | | | |
| Household Size | 2.67 | 2.43 | 2.60 |
| Households | 7,364 | 6,375 | 124,010,992 |
| Family Households | 5,224 | 4,275 | 80,755,759 |
| Married couple, w/children | 25.2% | 32.2% | 30.5% |
| Married couple, no children | 43.9% | 38.3% | 42.9% |
| Non Family Households | 2,140 | 2,100 | 43,255,233 |
| Single householder, w/children | 18.7% | 22.7% | 15.8% |
| Single householder, no children | 12.3% | 6.7% | 10.8% |