| | Rocksprings, TX | Utopia, TX | United States |
| Population | 901 | 210 | 329,725,481 |
| Female Population | 46.3% | 48.6% | 50.5% |
| Male Population | 53.7% | 51.4% | 49.5% |
| Median Age | 40.8 | 27.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,177 | 153 | 309,327,143 |
| Population - 2000 | 1,285 | 241 | 285,036,114 |
| Population - 1990 | 1,339 | 179 | 251,960,433 |
| Pop. 2000 to Now | -12.2% | -9.1% | 15.6% |
| Pop. 1990 to Now | -15.8% | 22.4% | 30.8% |
| space4 | | | |
| Population Density | 741.6 | 71.1 | 93.4 |
| Land Area | 1.2 | 3.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Rocksprings, TX | Utopia, TX | United States |
| Age 0 to 4 | 3.1% | 2.9% | 5.9% |
| Age 5 to 9 | 6.1% | 17.6% | 6.1% |
| Age 10 to 14 | 6.3% | 0.0% | 6.6% |
| Age 15 to 17 | 5.9% | 17.1% | 3.9% |
| Age 18 to 20 | 9.9% | 0.0% | 4.0% |
| Age 21 to 24 | 8.1% | 6.2% | 5.2% |
| Age 25 to 34 | 3.0% | 13.8% | 13.8% |
| Age 35 to 44 | 9.7% | 24.8% | 12.9% |
| Age 45 to 54 | 17.2% | 3.8% | 12.6% |
| Age 55 to 59 | 2.7% | 6.2% | 6.7% |
| Age 60 to 64 | 2.0% | 0.0% | 6.3% |
| Age 65 to 74 | 17.0% | 7.6% | 9.6% |
| Age 75 to 84 | 8.1% | 0.0% | 4.5% |
| Age 85 and over | 1.0% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Rocksprings, TX | Utopia, TX | United States |
| White | 36.0% | 83.3% | 59.4% |
| Black | 0.1% | 0.0% | 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 | 0.2% | 0.0% | 3.2% |
| Hispanic | 63.7% | 16.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Rocksprings, TX | Utopia, TX | United States |
| Married Population | 29.6% | 37.7% | 49.8% |
| Currently Married | 26.5% | 37.7% | 48.0% |
| Married but Separated | 3.0% | 0.0% | 1.8% |
| Single Population | 70.4% | 62.3% | 50.2% |
| Never Married | 39.0% | 57.5% | 33.8% |
| Divorced | 21.0% | 4.8% | 10.8% |
| Widowed | 10.4% | 0.0% | 5.6% |
| space5 | | | |
| Household Size | 2.44 | 2.47 | 2.60 |
| Households | 363 | 85 | 124,010,992 |
| Family Households | 173 | 64 | 80,755,759 |
| Married couple, w/children | 18.5% | 31.3% | 30.5% |
| Married couple, no children | 46.2% | 15.6% | 42.9% |
| Non Family Households | 190 | 21 | 43,255,233 |
| Single householder, w/children | 35.3% | 53.1% | 15.8% |
| Single householder, no children | 0.0% | 0.0% | 10.8% |