| | Mars Hill, NC | East Flat Rock, NC | United States |
| Population | 2,802 | 5,751 | 329,725,481 |
| Female Population | 43.2% | 56.1% | 50.5% |
| Male Population | 56.8% | 43.9% | 49.5% |
| Median Age | 25.4 | 35.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,861 | 5,753 | 309,327,143 |
| Population - 2000 | 1,764 | 4,151 | 285,036,114 |
| Population - 1990 | 1,611 | 3,218 | 251,960,433 |
| Pop. 2000 to Now | 6.6% | 9.3% | 15.6% |
| Pop. 1990 to Now | 16.8% | 41.0% | 30.8% |
| space4 | | | |
| Population Density | 1,403.1 | 1,341.2 | 93.4 |
| Land Area | 2.0 | 4.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Mars Hill, NC | East Flat Rock, NC | United States |
| Age 0 to 4 | 2.8% | 4.3% | 5.9% |
| Age 5 to 9 | 6.9% | 7.0% | 6.1% |
| Age 10 to 14 | 4.4% | 8.0% | 6.6% |
| Age 15 to 17 | 4.4% | 6.5% | 3.9% |
| Age 18 to 20 | 23.9% | 5.6% | 4.0% |
| Age 21 to 24 | 7.1% | 7.5% | 5.2% |
| Age 25 to 34 | 10.1% | 10.5% | 13.8% |
| Age 35 to 44 | 12.6% | 16.5% | 12.9% |
| Age 45 to 54 | 6.3% | 9.5% | 12.6% |
| Age 55 to 59 | 5.5% | 4.1% | 6.7% |
| Age 60 to 64 | 4.6% | 7.8% | 6.3% |
| Age 65 to 74 | 8.8% | 8.7% | 9.6% |
| Age 75 to 84 | 1.8% | 3.1% | 4.5% |
| Age 85 and over | 0.9% | 0.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Mars Hill, NC | East Flat Rock, NC | United States |
| White | 86.0% | 70.7% | 59.4% |
| Black | 6.1% | 4.7% | 12.2% |
| Asian | 1.1% | 1.5% | 5.6% |
| Native American | 0.6% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.1% | 1.3% | 3.2% |
| Hispanic | 5.1% | 21.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Mars Hill, NC | East Flat Rock, NC | United States |
| Married Population | 32.1% | 48.9% | 49.8% |
| Currently Married | 31.2% | 46.6% | 48.0% |
| Married but Separated | 0.8% | 2.4% | 1.8% |
| Single Population | 67.9% | 51.1% | 50.2% |
| Never Married | 50.9% | 36.4% | 33.8% |
| Divorced | 13.8% | 9.7% | 10.8% |
| Widowed | 3.2% | 5.0% | 5.6% |
| space5 | | | |
| Household Size | 2.61 | 2.79 | 2.60 |
| Households | 819 | 2,032 | 124,010,992 |
| Family Households | 485 | 1,365 | 80,755,759 |
| Married couple, w/children | 32.6% | 29.7% | 30.5% |
| Married couple, no children | 43.3% | 33.1% | 42.9% |
| Non Family Households | 334 | 667 | 43,255,233 |
| Single householder, w/children | 15.3% | 19.7% | 15.8% |
| Single householder, no children | 8.9% | 17.5% | 10.8% |