| | Loon Lake, WA | Gaston, OR | United States |
| Population | 809 | 622 | 329,725,481 |
| Female Population | 53.4% | 46.5% | 50.5% |
| Male Population | 46.6% | 53.5% | 49.5% |
| Median Age | 60.4 | 41.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 749 | 636 | 309,327,143 |
| Population - 2000 | 703 | 600 | 285,036,114 |
| Population - 1990 | 468 | 563 | 251,960,433 |
| Pop. 2000 to Now | 18.6% | 19.2% | 15.6% |
| Pop. 1990 to Now | 78.2% | 27.0% | 30.8% |
| space4 | | | |
| Population Density | 248.1 | 2,312.3 | 93.4 |
| Land Area | 3.3 | 0.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Loon Lake, WA | Gaston, OR | United States |
| Age 0 to 4 | 0.5% | 8.5% | 5.9% |
| Age 5 to 9 | 7.2% | 4.3% | 6.1% |
| Age 10 to 14 | 1.6% | 8.4% | 6.6% |
| Age 15 to 17 | 0.7% | 2.1% | 3.9% |
| Age 18 to 20 | 0.0% | 2.9% | 4.0% |
| Age 21 to 24 | 2.2% | 1.9% | 5.2% |
| Age 25 to 34 | 3.6% | 10.6% | 13.8% |
| Age 35 to 44 | 17.4% | 15.3% | 12.9% |
| Age 45 to 54 | 6.8% | 7.9% | 12.6% |
| Age 55 to 59 | 9.8% | 13.8% | 6.7% |
| Age 60 to 64 | 16.4% | 11.6% | 6.3% |
| Age 65 to 74 | 24.0% | 8.5% | 9.6% |
| Age 75 to 84 | 7.8% | 4.2% | 4.5% |
| Age 85 and over | 2.0% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Loon Lake, WA | Gaston, OR | United States |
| White | 94.3% | 89.1% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.9% | 0.0% | 5.6% |
| Native American | 2.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.1% | 5.6% | 3.2% |
| Hispanic | 1.5% | 5.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Loon Lake, WA | Gaston, OR | United States |
| Married Population | 62.5% | 49.4% | 49.8% |
| Currently Married | 62.5% | 49.0% | 48.0% |
| Married but Separated | 0.0% | 0.4% | 1.8% |
| Single Population | 37.5% | 50.6% | 50.2% |
| Never Married | 10.8% | 34.9% | 33.8% |
| Divorced | 15.0% | 10.6% | 10.8% |
| Widowed | 11.7% | 5.1% | 5.6% |
| space5 | | | |
| Household Size | 2.17 | 2.37 | 2.60 |
| Households | 372 | 263 | 124,010,992 |
| Family Households | 261 | 159 | 80,755,759 |
| Married couple, w/children | 8.8% | 32.7% | 30.5% |
| Married couple, no children | 63.6% | 37.1% | 42.9% |
| Non Family Households | 111 | 104 | 43,255,233 |
| Single householder, w/children | 17.2% | 14.5% | 15.8% |
| Single householder, no children | 10.3% | 15.7% | 10.8% |