| | Dell City, TX | Ozona, TX | United States |
| Population | 82 | 2,343 | 329,725,481 |
| Female Population | 75.6% | 49.5% | 50.5% |
| Male Population | 24.4% | 50.5% | 49.5% |
| Median Age | 51.8 | 53.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 366 | 3,305 | 309,327,143 |
| Population - 2000 | 413 | 3,436 | 285,036,114 |
| Population - 1990 | 569 | 3,181 | 251,960,433 |
| Pop. 2000 to Now | 30.0% | -13.5% | 15.6% |
| Pop. 1990 to Now | -5.6% | -6.6% | 30.8% |
| space4 | | | |
| Population Density | 49.2 | 500.4 | 93.4 |
| Land Area | 1.7 | 4.7 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Dell City, TX | Ozona, TX | United States |
| Age 0 to 4 | 0.0% | 0.0% | 5.9% |
| Age 5 to 9 | 15.9% | 4.6% | 6.1% |
| Age 10 to 14 | 0.0% | 6.6% | 6.6% |
| Age 15 to 17 | 0.0% | 2.8% | 3.9% |
| Age 18 to 20 | 0.0% | 1.6% | 4.0% |
| Age 21 to 24 | 0.0% | 2.6% | 5.2% |
| Age 25 to 34 | 8.5% | 12.7% | 13.8% |
| Age 35 to 44 | 15.9% | 13.1% | 12.9% |
| Age 45 to 54 | 28.0% | 14.5% | 12.6% |
| Age 55 to 59 | 2.4% | 6.6% | 6.7% |
| Age 60 to 64 | 8.5% | 9.3% | 6.3% |
| Age 65 to 74 | 4.9% | 19.0% | 9.6% |
| Age 75 to 84 | 2.4% | 4.8% | 4.5% |
| Age 85 and over | 13.4% | 1.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Dell City, TX | Ozona, TX | United States |
| White | 15.9% | 26.4% | 59.4% |
| Black | 0.0% | 2.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 0.0% | 3.2% |
| Hispanic | 84.1% | 71.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Dell City, TX | Ozona, TX | United States |
| Married Population | 68.1% | 63.2% | 49.8% |
| Currently Married | 52.2% | 61.9% | 48.0% |
| Married but Separated | 15.9% | 1.3% | 1.8% |
| Single Population | 31.9% | 36.8% | 50.2% |
| Never Married | 1.4% | 23.5% | 33.8% |
| Divorced | 21.7% | 5.3% | 10.8% |
| Widowed | 8.7% | 7.9% | 5.6% |
| space5 | | | |
| Household Size | 2.00 | 2.04 | 2.60 |
| Households | 41 | 1,133 | 124,010,992 |
| Family Households | 19 | 746 | 80,755,759 |
| Married couple, w/children | 0.0% | 12.2% | 30.5% |
| Married couple, no children | 36.8% | 65.6% | 42.9% |
| Non Family Households | 22 | 387 | 43,255,233 |
| Single householder, w/children | 63.2% | 22.3% | 15.8% |
| Single householder, no children | 0.0% | 0.0% | 10.8% |