| | Elmendorf, TX | Somerset, TX | United States |
| Population | 2,416 | 2,180 | 329,725,481 |
| Female Population | 49.5% | 53.4% | 50.5% |
| Male Population | 50.5% | 46.6% | 49.5% |
| Median Age | 31.1 | 37.6 | 38.4 |
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| Population - 2010 | 1,682 | 1,671 | 309,327,143 |
| Population - 2000 | 664 | 1,550 | 285,036,114 |
| Population - 1990 | 568 | 1,144 | 251,960,433 |
| Pop. 2000 to Now | 223.0% | 27.9% | 15.6% |
| Pop. 1990 to Now | 277.6% | 73.3% | 30.8% |
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| Population Density | 393.5 | 1,091.1 | 93.4 |
| Land Area | 6.1 | 2.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Elmendorf, TX | Somerset, TX | United States |
| Age 0 to 4 | 7.5% | 5.3% | 5.9% |
| Age 5 to 9 | 6.9% | 6.1% | 6.1% |
| Age 10 to 14 | 10.8% | 5.3% | 6.6% |
| Age 15 to 17 | 4.0% | 7.4% | 3.9% |
| Age 18 to 20 | 1.8% | 4.4% | 4.0% |
| Age 21 to 24 | 6.5% | 4.6% | 5.2% |
| Age 25 to 34 | 18.5% | 12.8% | 13.8% |
| Age 35 to 44 | 8.3% | 12.8% | 12.9% |
| Age 45 to 54 | 12.7% | 12.2% | 12.6% |
| Age 55 to 59 | 7.4% | 8.7% | 6.7% |
| Age 60 to 64 | 5.4% | 2.8% | 6.3% |
| Age 65 to 74 | 6.4% | 8.3% | 9.6% |
| Age 75 to 84 | 2.5% | 5.3% | 4.5% |
| Age 85 and over | 1.3% | 4.0% | 1.9% |
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| Race | | | |
| | Elmendorf, TX | Somerset, TX | United States |
| White | 26.4% | 18.5% | 59.4% |
| Black | 0.6% | 0.4% | 12.2% |
| Asian | 0.8% | 0.4% | 5.6% |
| Native American | 0.0% | 2.8% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.7% | 0.4% |
| Two or More Races | 0.5% | 0.2% | 3.2% |
| Hispanic | 71.6% | 77.0% | 18.4% |
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| Marriage & Family | | | |
| | Elmendorf, TX | Somerset, TX | United States |
| Married Population | 51.9% | 43.1% | 49.8% |
| Currently Married | 44.9% | 40.0% | 48.0% |
| Married but Separated | 7.0% | 3.1% | 1.8% |
| Single Population | 48.1% | 56.9% | 50.2% |
| Never Married | 34.6% | 39.5% | 33.8% |
| Divorced | 6.2% | 4.0% | 10.8% |
| Widowed | 7.4% | 13.4% | 5.6% |
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| Household Size | 3.17 | 3.13 | 2.60 |
| Households | 761 | 696 | 124,010,992 |
| Family Households | 611 | 525 | 80,755,759 |
| Married couple, w/children | 21.1% | 30.5% | 30.5% |
| Married couple, no children | 36.2% | 35.4% | 42.9% |
| Non Family Households | 150 | 171 | 43,255,233 |
| Single householder, w/children | 35.0% | 17.9% | 15.8% |
| Single householder, no children | 7.7% | 16.2% | 10.8% |