| | Falling Waters, WV | Waynesboro, PA | United States |
| Population | 2,626 | 10,871 | 329,725,481 |
| Female Population | 35.1% | 52.8% | 50.5% |
| Male Population | 64.9% | 47.2% | 49.5% |
| Median Age | 28.1 | 36.8 | 38.4 |
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| Population - 2010 | 776 | 10,578 | 309,327,143 |
| Population - 2000 | 569 | 9,614 | 285,036,114 |
| Population - 1990 | 417 | 9,578 | 251,960,433 |
| Pop. 2000 to Now | 172.2% | 13.4% | 15.6% |
| Pop. 1990 to Now | 271.5% | 13.9% | 30.8% |
| space4 | | | |
| Population Density | 2,109.2 | 3,186.1 | 93.4 |
| Land Area | 1.2 | 3.4 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Falling Waters, WV | Waynesboro, PA | United States |
| Age 0 to 4 | 10.4% | 5.7% | 5.9% |
| Age 5 to 9 | 4.7% | 9.1% | 6.1% |
| Age 10 to 14 | 8.5% | 6.4% | 6.6% |
| Age 15 to 17 | 0.7% | 5.6% | 3.9% |
| Age 18 to 20 | 10.3% | 2.8% | 4.0% |
| Age 21 to 24 | 6.2% | 4.2% | 5.2% |
| Age 25 to 34 | 26.6% | 12.1% | 13.8% |
| Age 35 to 44 | 7.5% | 16.4% | 12.9% |
| Age 45 to 54 | 4.4% | 12.4% | 12.6% |
| Age 55 to 59 | 8.0% | 6.8% | 6.7% |
| Age 60 to 64 | 1.9% | 4.4% | 6.3% |
| Age 65 to 74 | 9.7% | 8.2% | 9.6% |
| Age 75 to 84 | 1.1% | 4.6% | 4.5% |
| Age 85 and over | 0.0% | 1.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Falling Waters, WV | Waynesboro, PA | United States |
| White | 94.4% | 86.8% | 59.4% |
| Black | 4.2% | 5.1% | 12.2% |
| Asian | 0.0% | 0.1% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 1.4% | 3.4% | 3.2% |
| Hispanic | 0.0% | 4.5% | 18.4% |
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| Marriage & Family | | | |
| | Falling Waters, WV | Waynesboro, PA | United States |
| Married Population | 49.4% | 45.1% | 49.8% |
| Currently Married | 46.1% | 42.0% | 48.0% |
| Married but Separated | 3.3% | 3.2% | 1.8% |
| Single Population | 50.6% | 54.9% | 50.2% |
| Never Married | 40.4% | 33.7% | 33.8% |
| Divorced | 10.2% | 16.5% | 10.8% |
| Widowed | 0.0% | 4.7% | 5.6% |
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| Household Size | 3.22 | 2.40 | 2.60 |
| Households | 816 | 4,512 | 124,010,992 |
| Family Households | 586 | 2,740 | 80,755,759 |
| Married couple, w/children | 27.8% | 24.5% | 30.5% |
| Married couple, no children | 43.2% | 39.1% | 42.9% |
| Non Family Households | 230 | 1,772 | 43,255,233 |
| Single householder, w/children | 29.0% | 28.1% | 15.8% |
| Single householder, no children | 0.0% | 8.2% | 10.8% |