| | Redwood, OR | Selma, OR | United States |
| Population | 3,207 | 800 | 329,725,481 |
| Female Population | 51.2% | 53.4% | 50.5% |
| Male Population | 48.8% | 46.6% | 49.5% |
| Median Age | 51.3 | 36.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,170 | 649 | 309,327,143 |
| Population - 2000 | 5,844 | 652 | 285,036,114 |
| Population - 1990 | 3,702 | 554 | 251,960,433 |
| Pop. 2000 to Now | -52.9% | -6.6% | 15.6% |
| Pop. 1990 to Now | -25.6% | 9.9% | 30.8% |
| space4 | | | |
| Population Density | 929.6 | 123.9 | 93.4 |
| Land Area | 3.5 | 6.5 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Redwood, OR | Selma, OR | United States |
| Age 0 to 4 | 6.5% | 3.3% | 5.9% |
| Age 5 to 9 | 3.1% | 0.0% | 6.1% |
| Age 10 to 14 | 6.3% | 15.4% | 6.6% |
| Age 15 to 17 | 3.9% | 4.0% | 3.9% |
| Age 18 to 20 | 1.2% | 1.4% | 4.0% |
| Age 21 to 24 | 4.8% | 0.0% | 5.2% |
| Age 25 to 34 | 10.1% | 15.1% | 13.8% |
| Age 35 to 44 | 4.9% | 18.8% | 12.9% |
| Age 45 to 54 | 17.0% | 4.8% | 12.6% |
| Age 55 to 59 | 5.1% | 6.6% | 6.7% |
| Age 60 to 64 | 7.2% | 11.1% | 6.3% |
| Age 65 to 74 | 12.8% | 15.1% | 9.6% |
| Age 75 to 84 | 12.5% | 2.5% | 4.5% |
| Age 85 and over | 4.5% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Redwood, OR | Selma, OR | United States |
| White | 81.7% | 97.1% | 59.4% |
| Black | 2.1% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 2.6% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.2% | 1.6% | 3.2% |
| Hispanic | 12.4% | 1.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Redwood, OR | Selma, OR | United States |
| Married Population | 62.6% | 70.0% | 49.8% |
| Currently Married | 61.3% | 70.0% | 48.0% |
| Married but Separated | 1.3% | 0.0% | 1.8% |
| Single Population | 37.4% | 30.0% | 50.2% |
| Never Married | 17.0% | 13.8% | 33.8% |
| Divorced | 10.1% | 7.7% | 10.8% |
| Widowed | 10.3% | 8.4% | 5.6% |
| space5 | | | |
| Household Size | 2.68 | 2.55 | 2.60 |
| Households | 1,190 | 312 | 124,010,992 |
| Family Households | 950 | 234 | 80,755,759 |
| Married couple, w/children | 12.0% | 48.7% | 30.5% |
| Married couple, no children | 62.1% | 44.0% | 42.9% |
| Non Family Households | 240 | 78 | 43,255,233 |
| Single householder, w/children | 20.0% | 0.0% | 15.8% |
| Single householder, no children | 5.9% | 7.3% | 10.8% |