| | Galway, NY | Great Cacapon, WV | United States |
| Population | 3,543 | 595 | 329,725,481 |
| Female Population | 46.0% | 43.5% | 50.5% |
| Male Population | 54.1% | 56.5% | 49.5% |
| Median Age | 49.6 | 38.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,559 | 407 | 309,327,143 |
| Population - 2000 | 3,589 | 314 | 285,036,114 |
| Population - 1990 | 3,266 | 287 | 251,960,433 |
| Pop. 2000 to Now | -1.7% | 24.2% | 15.6% |
| Pop. 1990 to Now | 8.0% | 35.9% | 30.8% |
| space4 | | | |
| Population Density | 80.9 | 694.3 | 93.4 |
| Land Area | 43.8 | 0.9 | 3,531,905.4 |
| Water Area | 1.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Galway, NY | Great Cacapon, WV | United States |
| Age 0 to 4 | 6.0% | 0.0% | 5.9% |
| Age 5 to 9 | 5.8% | 11.9% | 6.1% |
| Age 10 to 14 | 3.6% | 12.3% | 6.6% |
| Age 15 to 17 | 3.2% | 5.9% | 3.9% |
| Age 18 to 20 | 5.6% | 9.9% | 4.0% |
| Age 21 to 24 | 2.7% | 0.0% | 5.2% |
| Age 25 to 34 | 8.1% | 3.4% | 13.8% |
| Age 35 to 44 | 8.4% | 26.1% | 12.9% |
| Age 45 to 54 | 16.5% | 18.0% | 12.6% |
| Age 55 to 59 | 7.9% | 1.8% | 6.7% |
| Age 60 to 64 | 8.4% | 3.0% | 6.3% |
| Age 65 to 74 | 14.6% | 4.2% | 9.6% |
| Age 75 to 84 | 8.7% | 3.5% | 4.5% |
| Age 85 and over | 0.5% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Galway, NY | Great Cacapon, WV | United States |
| White | 99.3% | 100.0% | 59.4% |
| Black | 0.3% | 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 | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.4% | 0.0% | 3.2% |
| Hispanic | 0.0% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Galway, NY | Great Cacapon, WV | United States |
| Married Population | 66.7% | 53.7% | 49.8% |
| Currently Married | 63.8% | 53.7% | 48.0% |
| Married but Separated | 2.8% | 0.0% | 1.8% |
| Single Population | 33.3% | 46.3% | 50.2% |
| Never Married | 21.6% | 34.6% | 33.8% |
| Divorced | 7.3% | 11.8% | 10.8% |
| Widowed | 4.4% | 0.0% | 5.6% |
| space5 | | | |
| Household Size | 2.55 | 3.50 | 2.60 |
| Households | 1,387 | 170 | 124,010,992 |
| Family Households | 1,009 | 150 | 80,755,759 |
| Married couple, w/children | 34.7% | 24.0% | 30.5% |
| Married couple, no children | 55.8% | 55.3% | 42.9% |
| Non Family Households | 378 | 20 | 43,255,233 |
| Single householder, w/children | 5.9% | 20.7% | 15.8% |
| Single householder, no children | 3.6% | 0.0% | 10.8% |