| | Terra Alta, WV | Charleston, WV | United States |
| Population | 2,067 | 49,055 | 329,725,481 |
| Female Population | 51.5% | 51.2% | 50.5% |
| Male Population | 48.5% | 48.8% | 49.5% |
| Median Age | 35.3 | 41.7 | 38.4 |
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| Population - 2010 | 1,493 | 51,215 | 309,327,143 |
| Population - 2000 | 1,456 | 53,421 | 285,036,114 |
| Population - 1990 | 1,713 | 57,287 | 251,960,433 |
| Pop. 2000 to Now | 3.3% | -14.1% | 15.6% |
| Pop. 1990 to Now | -12.2% | -19.9% | 30.8% |
| space4 | | | |
| Population Density | 1,744.3 | 1,557.3 | 93.4 |
| Land Area | 1.2 | 31.5 | 3,531,905.4 |
| Water Area | 0.0 | 1.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Terra Alta, WV | Charleston, WV | United States |
| Age 0 to 4 | 6.3% | 5.5% | 5.9% |
| Age 5 to 9 | 9.7% | 4.9% | 6.1% |
| Age 10 to 14 | 8.4% | 4.8% | 6.6% |
| Age 15 to 17 | 6.8% | 3.7% | 3.9% |
| Age 18 to 20 | 2.0% | 3.6% | 4.0% |
| Age 21 to 24 | 4.9% | 4.6% | 5.2% |
| Age 25 to 34 | 11.4% | 13.4% | 13.8% |
| Age 35 to 44 | 16.4% | 12.8% | 12.9% |
| Age 45 to 54 | 9.0% | 12.7% | 12.6% |
| Age 55 to 59 | 5.2% | 7.6% | 6.7% |
| Age 60 to 64 | 6.3% | 6.8% | 6.3% |
| Age 65 to 74 | 9.8% | 11.4% | 9.6% |
| Age 75 to 84 | 2.9% | 5.5% | 4.5% |
| Age 85 and over | 1.0% | 2.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Terra Alta, WV | Charleston, WV | United States |
| White | 86.8% | 77.1% | 59.4% |
| Black | 0.9% | 14.1% | 12.2% |
| Asian | 0.0% | 2.4% | 5.6% |
| Native American | 0.0% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 11.4% | 4.9% | 3.2% |
| Hispanic | 1.0% | 1.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Terra Alta, WV | Charleston, WV | United States |
| Married Population | 46.6% | 43.3% | 49.8% |
| Currently Married | 43.3% | 41.7% | 48.0% |
| Married but Separated | 3.4% | 1.7% | 1.8% |
| Single Population | 53.4% | 56.7% | 50.2% |
| Never Married | 30.6% | 33.6% | 33.8% |
| Divorced | 18.1% | 16.1% | 10.8% |
| Widowed | 4.6% | 7.0% | 5.6% |
| space5 | | | |
| Household Size | 3.04 | 2.16 | 2.60 |
| Households | 678 | 21,779 | 124,010,992 |
| Family Households | 451 | 11,470 | 80,755,759 |
| Married couple, w/children | 34.1% | 23.3% | 30.5% |
| Married couple, no children | 33.7% | 46.5% | 42.9% |
| Non Family Households | 227 | 10,309 | 43,255,233 |
| Single householder, w/children | 19.1% | 18.4% | 15.8% |
| Single householder, no children | 13.1% | 11.7% | 10.8% |