| | Mountain Home, NC | Mountainhome, PA | United States |
| Population | 3,873 | 1,080 | 329,725,481 |
| Female Population | 47.8% | 51.0% | 50.5% |
| Male Population | 52.2% | 49.0% | 49.5% |
| Median Age | 44.8 | 45.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,203 | 1,192 | 309,327,143 |
| Population - 2000 | 2,169 | 1,169 | 285,036,114 |
| Population - 1990 | 1,898 | 1,042 | 251,960,433 |
| Pop. 2000 to Now | 68.7% | -15.2% | 15.6% |
| Pop. 1990 to Now | 92.8% | -4.9% | 30.8% |
| space4 | | | |
| Population Density | 1,027.1 | 569.9 | 93.4 |
| Land Area | 3.8 | 1.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Mountain Home, NC | Mountainhome, PA | United States |
| Age 0 to 4 | 3.6% | 6.0% | 5.9% |
| Age 5 to 9 | 1.3% | 0.0% | 6.1% |
| Age 10 to 14 | 8.1% | 3.9% | 6.6% |
| Age 15 to 17 | 5.6% | 2.3% | 3.9% |
| Age 18 to 20 | 6.4% | 6.7% | 4.0% |
| Age 21 to 24 | 4.2% | 16.0% | 5.2% |
| Age 25 to 34 | 14.6% | 5.8% | 13.8% |
| Age 35 to 44 | 6.5% | 4.1% | 12.9% |
| Age 45 to 54 | 19.9% | 29.6% | 12.6% |
| Age 55 to 59 | 6.4% | 2.3% | 6.7% |
| Age 60 to 64 | 3.4% | 5.2% | 6.3% |
| Age 65 to 74 | 9.8% | 14.9% | 9.6% |
| Age 75 to 84 | 7.2% | 3.1% | 4.5% |
| Age 85 and over | 3.1% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Mountain Home, NC | Mountainhome, PA | United States |
| White | 78.3% | 71.6% | 59.4% |
| Black | 0.2% | 3.4% | 12.2% |
| Asian | 0.0% | 19.2% | 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% | 3.0% | 3.2% |
| Hispanic | 21.5% | 2.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Mountain Home, NC | Mountainhome, PA | United States |
| Married Population | 62.0% | 42.0% | 49.8% |
| Currently Married | 61.4% | 38.2% | 48.0% |
| Married but Separated | 0.6% | 3.8% | 1.8% |
| Single Population | 38.0% | 58.0% | 50.2% |
| Never Married | 23.7% | 33.6% | 33.8% |
| Divorced | 10.2% | 17.2% | 10.8% |
| Widowed | 4.1% | 7.2% | 5.6% |
| space5 | | | |
| Household Size | 2.34 | 2.41 | 2.60 |
| Households | 1,619 | 449 | 124,010,992 |
| Family Households | 1,097 | 245 | 80,755,759 |
| Married couple, w/children | 48.9% | 12.7% | 30.5% |
| Married couple, no children | 41.7% | 57.6% | 42.9% |
| Non Family Households | 522 | 204 | 43,255,233 |
| Single householder, w/children | 0.0% | 18.8% | 15.8% |
| Single householder, no children | 9.5% | 11.0% | 10.8% |