| | Barberton, WA | Lake Shore, WA | United States |
| Population | 7,865 | 7,169 | 329,725,481 |
| Female Population | 48.7% | 49.3% | 50.5% |
| Male Population | 51.3% | 50.7% | 49.5% |
| Median Age | 43.5 | 45.2 | 38.4 |
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| Population - 2010 | 5,107 | 6,685 | 309,327,143 |
| Population - 2000 | 4,617 | 6,670 | 285,036,114 |
| Population - 1990 | 2,863 | 6,268 | 251,960,433 |
| Pop. 2000 to Now | 58.1% | 23.0% | 15.6% |
| Pop. 1990 to Now | 155.0% | 30.9% | 30.8% |
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| Population Density | 1,819.3 | 4,387.4 | 93.4 |
| Land Area | 4.3 | 1.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Barberton, WA | Lake Shore, WA | United States |
| Age 0 to 4 | 2.8% | 4.6% | 5.9% |
| Age 5 to 9 | 6.3% | 4.5% | 6.1% |
| Age 10 to 14 | 5.4% | 6.0% | 6.6% |
| Age 15 to 17 | 4.2% | 6.3% | 3.9% |
| Age 18 to 20 | 4.2% | 2.0% | 4.0% |
| Age 21 to 24 | 6.6% | 3.2% | 5.2% |
| Age 25 to 34 | 10.0% | 8.6% | 13.8% |
| Age 35 to 44 | 13.2% | 14.2% | 12.9% |
| Age 45 to 54 | 14.9% | 18.5% | 12.6% |
| Age 55 to 59 | 4.0% | 3.4% | 6.7% |
| Age 60 to 64 | 8.2% | 10.4% | 6.3% |
| Age 65 to 74 | 14.2% | 11.9% | 9.6% |
| Age 75 to 84 | 4.3% | 4.3% | 4.5% |
| Age 85 and over | 1.7% | 2.1% | 1.9% |
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| Race | | | |
| | Barberton, WA | Lake Shore, WA | United States |
| White | 82.2% | 87.7% | 59.4% |
| Black | 1.0% | 1.7% | 12.2% |
| Asian | 5.3% | 1.0% | 5.6% |
| Native American | 0.2% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 1.4% | 0.0% | 0.2% |
| Other | 0.5% | 0.1% | 0.4% |
| Two or More Races | 3.1% | 1.9% | 3.2% |
| Hispanic | 6.2% | 7.4% | 18.4% |
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| Marriage & Family | | | |
| | Barberton, WA | Lake Shore, WA | United States |
| Married Population | 62.8% | 62.4% | 49.8% |
| Currently Married | 62.6% | 62.0% | 48.0% |
| Married but Separated | 0.3% | 0.4% | 1.8% |
| Single Population | 37.2% | 37.6% | 50.2% |
| Never Married | 26.0% | 24.1% | 33.8% |
| Divorced | 6.0% | 8.8% | 10.8% |
| Widowed | 5.1% | 4.8% | 5.6% |
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| Household Size | 2.85 | 2.70 | 2.60 |
| Households | 2,755 | 2,648 | 124,010,992 |
| Family Households | 2,258 | 2,099 | 80,755,759 |
| Married couple, w/children | 30.7% | 39.1% | 30.5% |
| Married couple, no children | 55.2% | 50.3% | 42.9% |
| Non Family Households | 497 | 549 | 43,255,233 |
| Single householder, w/children | 2.8% | 3.3% | 15.8% |
| Single householder, no children | 11.3% | 7.2% | 10.8% |