| | Thomas, WV | Davis, WV | United States |
| Population | 532 | 846 | 329,725,481 |
| Female Population | 51.9% | 52.7% | 50.5% |
| Male Population | 48.1% | 47.3% | 49.5% |
| Median Age | 62.1 | 49.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 585 | 660 | 309,327,143 |
| Population - 2000 | 452 | 624 | 285,036,114 |
| Population - 1990 | 573 | 799 | 251,960,433 |
| Pop. 2000 to Now | 20.6% | 2.9% | 15.6% |
| Pop. 1990 to Now | -4.9% | -19.7% | 30.8% |
| space4 | | | |
| Population Density | 119.3 | 462.0 | 93.4 |
| Land Area | 4.5 | 1.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Thomas, WV | Davis, WV | United States |
| Age 0 to 4 | 7.1% | 1.2% | 5.9% |
| Age 5 to 9 | 1.3% | 3.8% | 6.1% |
| Age 10 to 14 | 1.1% | 5.8% | 6.6% |
| Age 15 to 17 | 2.3% | 0.7% | 3.9% |
| Age 18 to 20 | 0.0% | 5.7% | 4.0% |
| Age 21 to 24 | 1.7% | 2.7% | 5.2% |
| Age 25 to 34 | 4.9% | 9.6% | 13.8% |
| Age 35 to 44 | 13.7% | 14.4% | 12.9% |
| Age 45 to 54 | 10.3% | 17.6% | 12.6% |
| Age 55 to 59 | 6.8% | 7.2% | 6.7% |
| Age 60 to 64 | 7.0% | 10.2% | 6.3% |
| Age 65 to 74 | 27.4% | 16.3% | 9.6% |
| Age 75 to 84 | 10.3% | 1.9% | 4.5% |
| Age 85 and over | 6.0% | 3.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Thomas, WV | Davis, WV | United States |
| White | 99.8% | 97.3% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.2% | 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 | 0.0% | 2.4% | 3.2% |
| Hispanic | 0.0% | 0.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Thomas, WV | Davis, WV | United States |
| Married Population | 44.1% | 50.6% | 49.8% |
| Currently Married | 42.0% | 50.2% | 48.0% |
| Married but Separated | 2.1% | 0.4% | 1.8% |
| Single Population | 55.9% | 49.4% | 50.2% |
| Never Married | 18.9% | 31.3% | 33.8% |
| Divorced | 18.7% | 10.2% | 10.8% |
| Widowed | 18.3% | 7.9% | 5.6% |
| space5 | | | |
| Household Size | 2.31 | 2.24 | 2.60 |
| Households | 197 | 378 | 124,010,992 |
| Family Households | 103 | 174 | 80,755,759 |
| Married couple, w/children | 39.8% | 33.3% | 30.5% |
| Married couple, no children | 38.8% | 52.3% | 42.9% |
| Non Family Households | 94 | 204 | 43,255,233 |
| Single householder, w/children | 11.7% | 8.6% | 15.8% |
| Single householder, no children | 9.7% | 5.7% | 10.8% |