| | Kermit, TX | Monahans, TX | United States |
| Population | 6,078 | 7,614 | 329,725,481 |
| Female Population | 49.2% | 51.8% | 50.5% |
| Male Population | 50.8% | 48.2% | 49.5% |
| Median Age | 35 | 35.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 5,686 | 6,914 | 309,327,143 |
| Population - 2000 | 5,714 | 6,821 | 285,036,114 |
| Population - 1990 | 6,875 | 8,101 | 251,960,433 |
| Pop. 2000 to Now | 11.4% | 15.2% | 15.6% |
| Pop. 1990 to Now | -7.4% | -3.0% | 30.8% |
| space4 | | | |
| Population Density | 2,418.6 | 263.7 | 93.4 |
| Land Area | 2.5 | 28.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Kermit, TX | Monahans, TX | United States |
| Age 0 to 4 | 7.5% | 8.4% | 5.9% |
| Age 5 to 9 | 9.5% | 7.8% | 6.1% |
| Age 10 to 14 | 8.3% | 9.1% | 6.6% |
| Age 15 to 17 | 5.8% | 5.6% | 3.9% |
| Age 18 to 20 | 6.6% | 2.2% | 4.0% |
| Age 21 to 24 | 4.3% | 5.5% | 5.2% |
| Age 25 to 34 | 8.0% | 11.2% | 13.8% |
| Age 35 to 44 | 18.5% | 16.8% | 12.9% |
| Age 45 to 54 | 10.2% | 12.2% | 12.6% |
| Age 55 to 59 | 3.6% | 5.5% | 6.7% |
| Age 60 to 64 | 5.6% | 4.2% | 6.3% |
| Age 65 to 74 | 9.9% | 7.6% | 9.6% |
| Age 75 to 84 | 1.6% | 2.5% | 4.5% |
| Age 85 and over | 0.6% | 1.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Kermit, TX | Monahans, TX | United States |
| White | 24.9% | 34.4% | 59.4% |
| Black | 0.9% | 4.1% | 12.2% |
| Asian | 0.0% | 3.3% | 5.6% |
| Native American | 2.4% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.7% | 0.0% | 0.4% |
| Two or More Races | 0.2% | 0.3% | 3.2% |
| Hispanic | 70.8% | 57.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Kermit, TX | Monahans, TX | United States |
| Married Population | 56.4% | 57.7% | 49.8% |
| Currently Married | 54.9% | 55.4% | 48.0% |
| Married but Separated | 1.5% | 2.3% | 1.8% |
| Single Population | 43.6% | 42.3% | 50.2% |
| Never Married | 30.4% | 27.1% | 33.8% |
| Divorced | 9.8% | 10.1% | 10.8% |
| Widowed | 3.4% | 5.0% | 5.6% |
| space5 | | | |
| Household Size | 2.84 | 2.72 | 2.60 |
| Households | 2,142 | 2,766 | 124,010,992 |
| Family Households | 1,598 | 2,101 | 80,755,759 |
| Married couple, w/children | 42.7% | 42.0% | 30.5% |
| Married couple, no children | 30.7% | 29.2% | 42.9% |
| Non Family Households | 544 | 665 | 43,255,233 |
| Single householder, w/children | 16.3% | 22.2% | 15.8% |
| Single householder, no children | 10.3% | 6.6% | 10.8% |