| | Green Bank, WV | Bluefield, WV | United States |
| Population | 59 | 9,699 | 329,725,481 |
| Female Population | 57.6% | 58.0% | 50.5% |
| Male Population | 42.4% | 42.0% | 49.5% |
| Median Age | 55.8 | 43 | 38.4 |
| space3 | | | |
| Population - 2010 | 82 | 10,443 | 309,327,143 |
| Population - 2000 | 157 | 11,451 | 285,036,114 |
| Population - 1990 | 142 | 12,756 | 251,960,433 |
| Pop. 2000 to Now | 75.2% | -17.0% | 15.6% |
| Pop. 1990 to Now | 93.7% | -25.5% | 30.8% |
| space4 | | | |
| Population Density | 17.9 | 1,073.9 | 93.4 |
| Land Area | 3.3 | 9.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Green Bank, WV | Bluefield, WV | United States |
| Age 0 to 4 | 0.0% | 6.3% | 5.9% |
| Age 5 to 9 | 18.6% | 7.0% | 6.1% |
| Age 10 to 14 | 0.0% | 4.4% | 6.6% |
| Age 15 to 17 | 0.0% | 1.6% | 3.9% |
| Age 18 to 20 | 0.0% | 2.3% | 4.0% |
| Age 21 to 24 | 0.0% | 5.4% | 5.2% |
| Age 25 to 34 | 0.0% | 14.4% | 13.8% |
| Age 35 to 44 | 0.0% | 10.3% | 12.9% |
| Age 45 to 54 | 8.5% | 12.1% | 12.6% |
| Age 55 to 59 | 33.9% | 6.0% | 6.7% |
| Age 60 to 64 | 30.5% | 9.8% | 6.3% |
| Age 65 to 74 | 8.5% | 10.4% | 9.6% |
| Age 75 to 84 | 0.0% | 7.1% | 4.5% |
| Age 85 and over | 0.0% | 2.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Green Bank, WV | Bluefield, WV | United States |
| White | 94.9% | 66.3% | 59.4% |
| Black | 0.0% | 23.5% | 12.2% |
| Asian | 0.0% | 0.3% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.3% | 0.4% |
| Two or More Races | 0.0% | 5.9% | 3.2% |
| Hispanic | 5.1% | 3.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Green Bank, WV | Bluefield, WV | United States |
| Married Population | 89.6% | 41.2% | 49.8% |
| Currently Married | 89.6% | 39.8% | 48.0% |
| Married but Separated | 0.0% | 1.4% | 1.8% |
| Single Population | 10.4% | 58.8% | 50.2% |
| Never Married | 0.0% | 30.9% | 33.8% |
| Divorced | 0.0% | 17.7% | 10.8% |
| Widowed | 10.4% | 10.2% | 5.6% |
| space5 | | | |
| Household Size | 2.36 | 2.29 | 2.60 |
| Households | 25 | 4,138 | 124,010,992 |
| Family Households | 20 | 2,700 | 80,755,759 |
| Married couple, w/children | 40.0% | 12.7% | 30.5% |
| Married couple, no children | 60.0% | 43.7% | 42.9% |
| Non Family Households | 5 | 1,438 | 43,255,233 |
| Single householder, w/children | 0.0% | 27.3% | 15.8% |
| Single householder, no children | 0.0% | 16.3% | 10.8% |