| | Salem, WV | Freeland, WA | United States |
| Population | 1,914 | 1,997 | 329,725,481 |
| Female Population | 43.5% | 47.7% | 50.5% |
| Male Population | 56.5% | 52.3% | 49.5% |
| Median Age | 29.7 | 54.6 | 38.4 |
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| Population - 2010 | 1,588 | 1,768 | 309,327,143 |
| Population - 2000 | 2,006 | 1,313 | 285,036,114 |
| Population - 1990 | 2,063 | 1,278 | 251,960,433 |
| Pop. 2000 to Now | -24.7% | 38.8% | 15.6% |
| Pop. 1990 to Now | -26.8% | 42.6% | 30.8% |
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| Population Density | 1,430.5 | 514.4 | 93.4 |
| Land Area | 1.3 | 3.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Salem, WV | Freeland, WA | United States |
| Age 0 to 4 | 3.9% | 1.7% | 5.9% |
| Age 5 to 9 | 3.2% | 3.5% | 6.1% |
| Age 10 to 14 | 4.3% | 6.3% | 6.6% |
| Age 15 to 17 | 3.3% | 4.8% | 3.9% |
| Age 18 to 20 | 18.8% | 2.8% | 4.0% |
| Age 21 to 24 | 7.7% | 4.9% | 5.2% |
| Age 25 to 34 | 14.5% | 6.7% | 13.8% |
| Age 35 to 44 | 9.9% | 8.3% | 12.9% |
| Age 45 to 54 | 11.8% | 12.1% | 12.6% |
| Age 55 to 59 | 3.9% | 7.5% | 6.7% |
| Age 60 to 64 | 6.7% | 7.3% | 6.3% |
| Age 65 to 74 | 5.6% | 22.6% | 9.6% |
| Age 75 to 84 | 2.4% | 7.5% | 4.5% |
| Age 85 and over | 4.0% | 4.2% | 1.9% |
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| Race | | | |
| | Salem, WV | Freeland, WA | United States |
| White | 88.6% | 86.0% | 59.4% |
| Black | 4.5% | 5.5% | 12.2% |
| Asian | 0.9% | 1.1% | 5.6% |
| Native American | 0.0% | 1.8% | 0.6% |
| Hawaiian, Pacific Islander | 0.3% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.3% | 3.0% | 3.2% |
| Hispanic | 2.4% | 2.8% | 18.4% |
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| Marriage & Family | | | |
| | Salem, WV | Freeland, WA | United States |
| Married Population | 29.8% | 51.2% | 49.8% |
| Currently Married | 29.3% | 48.2% | 48.0% |
| Married but Separated | 0.5% | 3.1% | 1.8% |
| Single Population | 70.2% | 48.8% | 50.2% |
| Never Married | 50.0% | 21.8% | 33.8% |
| Divorced | 12.6% | 9.7% | 10.8% |
| Widowed | 7.6% | 17.3% | 5.6% |
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| Household Size | 2.60 | 2.19 | 2.60 |
| Households | 621 | 907 | 124,010,992 |
| Family Households | 348 | 475 | 80,755,759 |
| Married couple, w/children | 15.8% | 28.8% | 30.5% |
| Married couple, no children | 43.1% | 58.3% | 42.9% |
| Non Family Households | 273 | 432 | 43,255,233 |
| Single householder, w/children | 26.1% | 4.4% | 15.8% |
| Single householder, no children | 14.9% | 8.4% | 10.8% |