| | Philippi, WV | Weirton, WV | United States |
| Population | 2,922 | 19,150 | 329,725,481 |
| Female Population | 46.9% | 50.2% | 50.5% |
| Male Population | 53.1% | 49.8% | 49.5% |
| Median Age | 41.8 | 44.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,957 | 19,715 | 309,327,143 |
| Population - 2000 | 2,870 | 20,411 | 285,036,114 |
| Population - 1990 | 3,132 | 22,124 | 251,960,433 |
| Pop. 2000 to Now | 12.9% | -11.5% | 15.6% |
| Pop. 1990 to Now | 3.4% | -18.3% | 30.8% |
| space4 | | | |
| Population Density | 1,032.5 | 1,060.7 | 93.4 |
| Land Area | 2.8 | 18.1 | 3,531,905.4 |
| Water Area | 0.1 | 1.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Philippi, WV | Weirton, WV | United States |
| Age 0 to 4 | 5.1% | 5.5% | 5.9% |
| Age 5 to 9 | 2.5% | 5.0% | 6.1% |
| Age 10 to 14 | 4.6% | 6.1% | 6.6% |
| Age 15 to 17 | 3.4% | 3.2% | 3.9% |
| Age 18 to 20 | 14.2% | 2.3% | 4.0% |
| Age 21 to 24 | 5.4% | 3.8% | 5.2% |
| Age 25 to 34 | 9.6% | 11.7% | 13.8% |
| Age 35 to 44 | 9.1% | 13.0% | 12.9% |
| Age 45 to 54 | 13.0% | 13.7% | 12.6% |
| Age 55 to 59 | 4.9% | 5.9% | 6.7% |
| Age 60 to 64 | 6.7% | 6.8% | 6.3% |
| Age 65 to 74 | 10.6% | 12.4% | 9.6% |
| Age 75 to 84 | 8.5% | 7.1% | 4.5% |
| Age 85 and over | 2.4% | 3.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Philippi, WV | Weirton, WV | United States |
| White | 89.0% | 91.7% | 59.4% |
| Black | 4.5% | 3.0% | 12.2% |
| Asian | 1.5% | 0.9% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.7% | 2.8% | 3.2% |
| Hispanic | 1.3% | 1.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Philippi, WV | Weirton, WV | United States |
| Married Population | 33.9% | 45.6% | 49.8% |
| Currently Married | 32.2% | 44.4% | 48.0% |
| Married but Separated | 1.6% | 1.2% | 1.8% |
| Single Population | 66.1% | 54.4% | 50.2% |
| Never Married | 36.3% | 27.3% | 33.8% |
| Divorced | 18.1% | 16.4% | 10.8% |
| Widowed | 11.7% | 10.8% | 5.6% |
| space5 | | | |
| Household Size | 1.89 | 2.23 | 2.60 |
| Households | 1,311 | 8,523 | 124,010,992 |
| Family Households | 513 | 4,736 | 80,755,759 |
| Married couple, w/children | 34.3% | 26.3% | 30.5% |
| Married couple, no children | 43.9% | 44.2% | 42.9% |
| Non Family Households | 798 | 3,787 | 43,255,233 |
| Single householder, w/children | 15.2% | 15.9% | 15.8% |
| Single householder, no children | 6.6% | 13.6% | 10.8% |