| | Galax, VA | Mount Airy, NC | United States |
| Population | 6,681 | 10,547 | 329,725,481 |
| Female Population | 53.9% | 51.0% | 50.5% |
| Male Population | 46.1% | 49.0% | 49.5% |
| Median Age | 42.1 | 45.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 6,989 | 10,405 | 309,327,143 |
| Population - 2000 | 6,837 | 8,484 | 285,036,114 |
| Population - 1990 | 6,670 | 7,156 | 251,960,433 |
| Pop. 2000 to Now | -7.9% | 19.9% | 15.6% |
| Pop. 1990 to Now | -5.6% | 42.2% | 30.8% |
| space4 | | | |
| Population Density | 811.2 | 902.5 | 93.4 |
| Land Area | 8.2 | 11.7 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Galax, VA | Mount Airy, NC | United States |
| Age 0 to 4 | 6.3% | 4.9% | 5.9% |
| Age 5 to 9 | 7.4% | 7.0% | 6.1% |
| Age 10 to 14 | 6.7% | 6.2% | 6.6% |
| Age 15 to 17 | 3.6% | 2.4% | 3.9% |
| Age 18 to 20 | 3.1% | 2.9% | 4.0% |
| Age 21 to 24 | 4.9% | 3.1% | 5.2% |
| Age 25 to 34 | 9.6% | 12.1% | 13.8% |
| Age 35 to 44 | 12.8% | 11.1% | 12.9% |
| Age 45 to 54 | 13.1% | 11.0% | 12.6% |
| Age 55 to 59 | 6.9% | 5.3% | 6.7% |
| Age 60 to 64 | 7.8% | 7.7% | 6.3% |
| Age 65 to 74 | 10.2% | 12.3% | 9.6% |
| Age 75 to 84 | 4.9% | 7.9% | 4.5% |
| Age 85 and over | 2.8% | 5.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Galax, VA | Mount Airy, NC | United States |
| White | 75.1% | 77.5% | 59.4% |
| Black | 4.2% | 11.2% | 12.2% |
| Asian | 0.5% | 1.8% | 5.6% |
| Native American | 0.1% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.4% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 1.5% | 1.2% | 3.2% |
| Hispanic | 17.8% | 8.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Galax, VA | Mount Airy, NC | United States |
| Married Population | 50.6% | 45.8% | 49.8% |
| Currently Married | 47.6% | 41.0% | 48.0% |
| Married but Separated | 3.1% | 4.8% | 1.8% |
| Single Population | 49.4% | 54.2% | 50.2% |
| Never Married | 26.1% | 26.6% | 33.8% |
| Divorced | 12.9% | 14.3% | 10.8% |
| Widowed | 10.4% | 13.3% | 5.6% |
| space5 | | | |
| Household Size | 2.29 | 2.13 | 2.60 |
| Households | 2,780 | 4,795 | 124,010,992 |
| Family Households | 1,695 | 2,577 | 80,755,759 |
| Married couple, w/children | 25.5% | 22.1% | 30.5% |
| Married couple, no children | 48.2% | 41.0% | 42.9% |
| Non Family Households | 1,085 | 2,218 | 43,255,233 |
| Single householder, w/children | 18.5% | 26.2% | 15.8% |
| Single householder, no children | 7.8% | 10.7% | 10.8% |