| | Pettus, TX | Midland, PA | United States |
| Population | 640 | 2,661 | 329,725,481 |
| Female Population | 44.7% | 52.1% | 50.5% |
| Male Population | 55.3% | 47.9% | 49.5% |
| Median Age | 30.4 | 42.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 654 | 2,635 | 309,327,143 |
| Population - 2000 | 608 | 3,137 | 285,036,114 |
| Population - 1990 | 575 | 3,321 | 251,960,433 |
| Pop. 2000 to Now | -31.7% | -22.2% | 15.6% |
| Pop. 1990 to Now | -27.8% | -26.5% | 30.8% |
| space4 | | | |
| Population Density | 109.9 | 1,471.0 | 93.4 |
| Land Area | 5.8 | 1.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Pettus, TX | Midland, PA | United States |
| Age 0 to 4 | 11.6% | 4.6% | 5.9% |
| Age 5 to 9 | 18.4% | 7.1% | 6.1% |
| Age 10 to 14 | 5.6% | 7.8% | 6.6% |
| Age 15 to 17 | 7.5% | 5.1% | 3.9% |
| Age 18 to 20 | 0.5% | 2.8% | 4.0% |
| Age 21 to 24 | 2.3% | 5.8% | 5.2% |
| Age 25 to 34 | 5.3% | 8.0% | 13.8% |
| Age 35 to 44 | 9.2% | 12.9% | 12.9% |
| Age 45 to 54 | 18.4% | 13.2% | 12.6% |
| Age 55 to 59 | 0.6% | 6.5% | 6.7% |
| Age 60 to 64 | 2.8% | 5.9% | 6.3% |
| Age 65 to 74 | 6.9% | 11.7% | 9.6% |
| Age 75 to 84 | 10.8% | 5.3% | 4.5% |
| Age 85 and over | 0.0% | 3.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Pettus, TX | Midland, PA | United States |
| White | 37.5% | 81.1% | 59.4% |
| Black | 0.0% | 10.5% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 8.1% | 3.2% |
| Hispanic | 62.5% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Pettus, TX | Midland, PA | United States |
| Married Population | 46.8% | 44.7% | 49.8% |
| Currently Married | 43.9% | 37.2% | 48.0% |
| Married but Separated | 2.9% | 7.5% | 1.8% |
| Single Population | 53.2% | 55.3% | 50.2% |
| Never Married | 33.0% | 37.2% | 33.8% |
| Divorced | 18.9% | 10.0% | 10.8% |
| Widowed | 1.2% | 8.1% | 5.6% |
| space5 | | | |
| Household Size | 3.88 | 2.42 | 2.60 |
| Households | 165 | 1,100 | 124,010,992 |
| Family Households | 124 | 674 | 80,755,759 |
| Married couple, w/children | 34.7% | 25.1% | 30.5% |
| Married couple, no children | 42.7% | 34.9% | 42.9% |
| Non Family Households | 41 | 426 | 43,255,233 |
| Single householder, w/children | 22.6% | 26.0% | 15.8% |
| Single householder, no children | 0.0% | 14.1% | 10.8% |