| | Mountain Home, AR | Truth or Consequences, NM | United States |
| Population | 12,722 | 6,078 | 329,725,481 |
| Female Population | 51.3% | 49.9% | 50.5% |
| Male Population | 48.7% | 50.1% | 49.5% |
| Median Age | 43.1 | 43.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 12,452 | 6,492 | 309,327,143 |
| Population - 2000 | 11,012 | 7,289 | 285,036,114 |
| Population - 1990 | 9,027 | 6,221 | 251,960,433 |
| Pop. 2000 to Now | 14.8% | -20.9% | 15.6% |
| Pop. 1990 to Now | 40.0% | -7.3% | 30.8% |
| space4 | | | |
| Population Density | 1,068.9 | 217.1 | 93.4 |
| Land Area | 11.9 | 28.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Mountain Home, AR | Truth or Consequences, NM | United States |
| Age 0 to 4 | 4.5% | 4.1% | 5.9% |
| Age 5 to 9 | 6.0% | 4.7% | 6.1% |
| Age 10 to 14 | 4.9% | 7.0% | 6.6% |
| Age 15 to 17 | 4.5% | 4.8% | 3.9% |
| Age 18 to 20 | 4.4% | 2.7% | 4.0% |
| Age 21 to 24 | 3.6% | 1.5% | 5.2% |
| Age 25 to 34 | 13.3% | 10.5% | 13.8% |
| Age 35 to 44 | 10.2% | 16.5% | 12.9% |
| Age 45 to 54 | 10.3% | 10.5% | 12.6% |
| Age 55 to 59 | 5.2% | 4.5% | 6.7% |
| Age 60 to 64 | 5.0% | 8.7% | 6.3% |
| Age 65 to 74 | 11.9% | 15.5% | 9.6% |
| Age 75 to 84 | 11.8% | 7.2% | 4.5% |
| Age 85 and over | 4.6% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Mountain Home, AR | Truth or Consequences, NM | United States |
| White | 92.7% | 58.6% | 59.4% |
| Black | 0.5% | 0.5% | 12.2% |
| Asian | 0.4% | 1.6% | 5.6% |
| Native American | 0.5% | 4.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 2.7% | 0.6% | 3.2% |
| Hispanic | 3.2% | 34.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Mountain Home, AR | Truth or Consequences, NM | United States |
| Married Population | 50.3% | 39.9% | 49.8% |
| Currently Married | 48.4% | 38.4% | 48.0% |
| Married but Separated | 2.0% | 1.5% | 1.8% |
| Single Population | 49.7% | 60.1% | 50.2% |
| Never Married | 24.9% | 28.9% | 33.8% |
| Divorced | 11.9% | 18.2% | 10.8% |
| Widowed | 12.9% | 13.0% | 5.6% |
| space5 | | | |
| Household Size | 2.09 | 2.24 | 2.60 |
| Households | 5,963 | 2,607 | 124,010,992 |
| Family Households | 2,967 | 1,181 | 80,755,759 |
| Married couple, w/children | 35.6% | 20.6% | 30.5% |
| Married couple, no children | 48.3% | 49.4% | 42.9% |
| Non Family Households | 2,996 | 1,426 | 43,255,233 |
| Single householder, w/children | 9.0% | 21.3% | 15.8% |
| Single householder, no children | 7.0% | 8.7% | 10.8% |