| | Amanda Park, WA | Humptulips, WA | United States |
| Population | 84 | 229 | 329,725,481 |
| Female Population | 45.2% | 46.7% | 50.5% |
| Male Population | 54.8% | 53.3% | 49.5% |
| Median Age | 26.3 | 37.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 158 | 202 | 309,327,143 |
| Population - 2000 | 246 | 216 | 285,036,114 |
| Population - 1990 | 224 | 223 | 251,960,433 |
| Pop. 2000 to Now | -48.4% | 37.0% | 15.6% |
| Pop. 1990 to Now | -43.3% | 32.7% | 30.8% |
| space4 | | | |
| Population Density | 10.2 | 24.6 | 93.4 |
| Land Area | 8.2 | 9.3 | 3,531,905.4 |
| Water Area | 0.3 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Amanda Park, WA | Humptulips, WA | United States |
| Age 0 to 4 | 2.4% | 7.9% | 5.9% |
| Age 5 to 9 | 13.1% | 3.1% | 6.1% |
| Age 10 to 14 | 3.6% | 17.5% | 6.6% |
| Age 15 to 17 | 0.0% | 2.2% | 3.9% |
| Age 18 to 20 | 11.9% | 0.0% | 4.0% |
| Age 21 to 24 | 17.9% | 4.4% | 5.2% |
| Age 25 to 34 | 9.5% | 12.2% | 13.8% |
| Age 35 to 44 | 10.7% | 6.1% | 12.9% |
| Age 45 to 54 | 9.5% | 1.7% | 12.6% |
| Age 55 to 59 | 7.1% | 14.8% | 6.7% |
| Age 60 to 64 | 10.7% | 5.2% | 6.3% |
| Age 65 to 74 | 1.2% | 18.8% | 9.6% |
| Age 75 to 84 | 2.4% | 5.2% | 4.5% |
| Age 85 and over | 0.0% | 0.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Amanda Park, WA | Humptulips, WA | United States |
| White | 61.9% | 79.0% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 25.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 2.2% | 0.4% |
| Two or More Races | 4.8% | 9.6% | 3.2% |
| Hispanic | 8.3% | 9.2% | 18.4% |
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| Marriage & Family | | | |
| | Amanda Park, WA | Humptulips, WA | United States |
| Married Population | 16.2% | 61.6% | 49.8% |
| Currently Married | 16.2% | 61.6% | 48.0% |
| Married but Separated | 0.0% | 0.0% | 1.8% |
| Single Population | 83.8% | 38.4% | 50.2% |
| Never Married | 50.0% | 24.4% | 33.8% |
| Divorced | 27.9% | 7.9% | 10.8% |
| Widowed | 5.9% | 6.1% | 5.6% |
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| Household Size | 2.71 | 2.86 | 2.60 |
| Households | 31 | 80 | 124,010,992 |
| Family Households | 17 | 60 | 80,755,759 |
| Married couple, w/children | 17.6% | 35.0% | 30.5% |
| Married couple, no children | 17.6% | 46.7% | 42.9% |
| Non Family Households | 14 | 20 | 43,255,233 |
| Single householder, w/children | 0.0% | 0.0% | 15.8% |
| Single householder, no children | 64.7% | 18.3% | 10.8% |