| | Drain, OR | Pine Grove, CA | United States |
| Population | 1,175 | 2,864 | 329,725,481 |
| Female Population | 51.7% | 57.3% | 50.5% |
| Male Population | 48.3% | 42.7% | 49.5% |
| Median Age | 50.6 | 57.3 | 38.4 |
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| Population - 2010 | 1,162 | 2,373 | 309,327,143 |
| Population - 2000 | 1,021 | 2,202 | 285,036,114 |
| Population - 1990 | 1,011 | 1,942 | 251,960,433 |
| Pop. 2000 to Now | 17.6% | 5.0% | 15.6% |
| Pop. 1990 to Now | 18.8% | 19.1% | 30.8% |
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| Population Density | 1,929.4 | 411.1 | 93.4 |
| Land Area | 0.6 | 7.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Drain, OR | Pine Grove, CA | United States |
| Age 0 to 4 | 4.6% | 3.5% | 5.9% |
| Age 5 to 9 | 3.7% | 3.7% | 6.1% |
| Age 10 to 14 | 3.3% | 2.7% | 6.6% |
| Age 15 to 17 | 2.0% | 1.7% | 3.9% |
| Age 18 to 20 | 1.6% | 0.9% | 4.0% |
| Age 21 to 24 | 4.6% | 0.0% | 5.2% |
| Age 25 to 34 | 12.1% | 9.6% | 13.8% |
| Age 35 to 44 | 8.9% | 11.3% | 12.9% |
| Age 45 to 54 | 21.3% | 12.1% | 12.6% |
| Age 55 to 59 | 12.6% | 9.3% | 6.7% |
| Age 60 to 64 | 7.3% | 10.9% | 6.3% |
| Age 65 to 74 | 10.8% | 25.7% | 9.6% |
| Age 75 to 84 | 5.7% | 6.9% | 4.5% |
| Age 85 and over | 1.5% | 1.9% | 1.9% |
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| Race | | | |
| | Drain, OR | Pine Grove, CA | United States |
| White | 89.9% | 86.2% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 2.1% | 0.0% | 5.6% |
| Native American | 0.3% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.6% | 2.5% | 3.2% |
| Hispanic | 4.1% | 11.3% | 18.4% |
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| Marriage & Family | | | |
| | Drain, OR | Pine Grove, CA | United States |
| Married Population | 55.5% | 61.6% | 49.8% |
| Currently Married | 54.3% | 59.4% | 48.0% |
| Married but Separated | 1.3% | 2.2% | 1.8% |
| Single Population | 44.5% | 38.4% | 50.2% |
| Never Married | 26.9% | 12.5% | 33.8% |
| Divorced | 10.6% | 21.2% | 10.8% |
| Widowed | 6.9% | 4.7% | 5.6% |
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| Household Size | 2.37 | 2.31 | 2.60 |
| Households | 496 | 1,239 | 124,010,992 |
| Family Households | 377 | 833 | 80,755,759 |
| Married couple, w/children | 13.5% | 26.4% | 30.5% |
| Married couple, no children | 60.7% | 59.4% | 42.9% |
| Non Family Households | 119 | 406 | 43,255,233 |
| Single householder, w/children | 15.7% | 0.0% | 15.8% |
| Single householder, no children | 10.1% | 14.2% | 10.8% |