| | Granville, WV | Williamstown, WV | United States |
| Population | 1,566 | 2,994 | 329,725,481 |
| Female Population | 52.0% | 53.2% | 50.5% |
| Male Population | 48.0% | 46.8% | 49.5% |
| Median Age | 23.3 | 46.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 786 | 2,911 | 309,327,143 |
| Population - 2000 | 778 | 2,996 | 285,036,114 |
| Population - 1990 | 798 | 2,774 | 251,960,433 |
| Pop. 2000 to Now | 305.7% | -4.5% | 15.6% |
| Pop. 1990 to Now | 295.5% | 3.1% | 30.8% |
| space4 | | | |
| Population Density | 1,207.4 | 2,227.7 | 93.4 |
| Land Area | 1.3 | 1.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Granville, WV | Williamstown, WV | United States |
| Age 0 to 4 | 1.9% | 4.9% | 5.9% |
| Age 5 to 9 | 2.4% | 4.0% | 6.1% |
| Age 10 to 14 | 4.0% | 9.8% | 6.6% |
| Age 15 to 17 | 2.3% | 3.8% | 3.9% |
| Age 18 to 20 | 17.6% | 0.5% | 4.0% |
| Age 21 to 24 | 26.8% | 1.5% | 5.2% |
| Age 25 to 34 | 13.9% | 11.4% | 13.8% |
| Age 35 to 44 | 4.9% | 11.8% | 12.9% |
| Age 45 to 54 | 8.1% | 13.7% | 12.6% |
| Age 55 to 59 | 3.0% | 7.8% | 6.7% |
| Age 60 to 64 | 1.1% | 8.1% | 6.3% |
| Age 65 to 74 | 10.7% | 11.9% | 9.6% |
| Age 75 to 84 | 2.6% | 7.1% | 4.5% |
| Age 85 and over | 0.9% | 3.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Granville, WV | Williamstown, WV | United States |
| White | 89.8% | 98.7% | 59.4% |
| Black | 1.7% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.5% | 0.0% | 0.4% |
| Two or More Races | 5.6% | 0.7% | 3.2% |
| Hispanic | 2.4% | 0.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Granville, WV | Williamstown, WV | United States |
| Married Population | 13.2% | 58.9% | 49.8% |
| Currently Married | 13.2% | 58.5% | 48.0% |
| Married but Separated | 0.0% | 0.4% | 1.8% |
| Single Population | 86.8% | 41.1% | 50.2% |
| Never Married | 64.2% | 17.7% | 33.8% |
| Divorced | 14.0% | 13.5% | 10.8% |
| Widowed | 8.6% | 9.9% | 5.6% |
| space5 | | | |
| Household Size | 2.46 | 2.25 | 2.60 |
| Households | 637 | 1,332 | 124,010,992 |
| Family Households | 176 | 844 | 80,755,759 |
| Married couple, w/children | 18.2% | 26.4% | 30.5% |
| Married couple, no children | 37.5% | 55.2% | 42.9% |
| Non Family Households | 461 | 488 | 43,255,233 |
| Single householder, w/children | 22.2% | 14.0% | 15.8% |
| Single householder, no children | 22.2% | 4.4% | 10.8% |