| | Beverly, WV | Triadelphia, WV | United States |
| Population | 726 | 940 | 329,725,481 |
| Female Population | 51.9% | 53.1% | 50.5% |
| Male Population | 48.1% | 46.9% | 49.5% |
| Median Age | 46.4 | 50.5 | 38.4 |
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| Population - 2010 | 700 | 805 | 309,327,143 |
| Population - 2000 | 651 | 817 | 285,036,114 |
| Population - 1990 | 696 | 835 | 251,960,433 |
| Pop. 2000 to Now | 0.9% | -8.2% | 15.6% |
| Pop. 1990 to Now | -5.6% | -10.2% | 30.8% |
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| Population Density | 1,653.8 | 1,396.7 | 93.4 |
| Land Area | 0.4 | 0.7 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Beverly, WV | Triadelphia, WV | United States |
| Age 0 to 4 | 10.3% | 3.7% | 5.9% |
| Age 5 to 9 | 4.8% | 4.1% | 6.1% |
| Age 10 to 14 | 5.9% | 2.0% | 6.6% |
| Age 15 to 17 | 2.8% | 0.2% | 3.9% |
| Age 18 to 20 | 1.2% | 1.9% | 4.0% |
| Age 21 to 24 | 5.0% | 3.5% | 5.2% |
| Age 25 to 34 | 12.1% | 24.5% | 13.8% |
| Age 35 to 44 | 6.7% | 8.0% | 12.9% |
| Age 45 to 54 | 9.1% | 8.4% | 12.6% |
| Age 55 to 59 | 5.2% | 13.7% | 6.7% |
| Age 60 to 64 | 8.3% | 8.6% | 6.3% |
| Age 65 to 74 | 17.2% | 15.6% | 9.6% |
| Age 75 to 84 | 8.7% | 1.8% | 4.5% |
| Age 85 and over | 2.6% | 3.8% | 1.9% |
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| Race | | | |
| | Beverly, WV | Triadelphia, WV | United States |
| White | 89.4% | 96.7% | 59.4% |
| Black | 0.1% | 1.8% | 12.2% |
| Asian | 0.1% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 7.9% | 1.5% | 3.2% |
| Hispanic | 2.5% | 0.0% | 18.4% |
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| Marriage & Family | | | |
| | Beverly, WV | Triadelphia, WV | United States |
| Married Population | 47.1% | 72.4% | 49.8% |
| Currently Married | 45.2% | 70.7% | 48.0% |
| Married but Separated | 1.9% | 1.7% | 1.8% |
| Single Population | 52.9% | 27.6% | 50.2% |
| Never Married | 26.2% | 15.6% | 33.8% |
| Divorced | 17.6% | 8.6% | 10.8% |
| Widowed | 9.1% | 3.4% | 5.6% |
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| Household Size | 2.27 | 2.34 | 2.60 |
| Households | 303 | 402 | 124,010,992 |
| Family Households | 179 | 318 | 80,755,759 |
| Married couple, w/children | 12.8% | 4.7% | 30.5% |
| Married couple, no children | 52.0% | 78.3% | 42.9% |
| Non Family Households | 124 | 84 | 43,255,233 |
| Single householder, w/children | 29.1% | 9.1% | 15.8% |
| Single householder, no children | 6.1% | 7.9% | 10.8% |