| | Douglas City, CA | Dunsmuir, CA | United States |
| Population | 951 | 1,826 | 329,725,481 |
| Female Population | 41.3% | 56.2% | 50.5% |
| Male Population | 58.7% | 43.8% | 49.5% |
| Median Age | 54.7 | 37.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 830 | 1,639 | 309,327,143 |
| Population - 2000 | 884 | 1,923 | 285,036,114 |
| Population - 1990 | 795 | 2,129 | 251,960,433 |
| Pop. 2000 to Now | -43.8% | -19.5% | 15.6% |
| Pop. 1990 to Now | -37.5% | -27.3% | 30.8% |
| space4 | | | |
| Population Density | 38.0 | 1,138.4 | 93.4 |
| Land Area | 25.0 | 1.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Douglas City, CA | Dunsmuir, CA | United States |
| Age 0 to 4 | 1.8% | 15.8% | 5.9% |
| Age 5 to 9 | 6.2% | 3.9% | 6.1% |
| Age 10 to 14 | 6.5% | 2.8% | 6.6% |
| Age 15 to 17 | 6.9% | 2.6% | 3.9% |
| Age 18 to 20 | 0.0% | 4.1% | 4.0% |
| Age 21 to 24 | 1.9% | 2.4% | 5.2% |
| Age 25 to 34 | 5.3% | 16.0% | 13.8% |
| Age 35 to 44 | 9.4% | 8.9% | 12.9% |
| Age 45 to 54 | 15.8% | 9.4% | 12.6% |
| Age 55 to 59 | 6.0% | 5.5% | 6.7% |
| Age 60 to 64 | 15.0% | 9.2% | 6.3% |
| Age 65 to 74 | 19.6% | 14.8% | 9.6% |
| Age 75 to 84 | 5.7% | 3.4% | 4.5% |
| Age 85 and over | 0.0% | 1.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Douglas City, CA | Dunsmuir, CA | United States |
| White | 81.9% | 74.0% | 59.4% |
| Black | 0.0% | 1.4% | 12.2% |
| Asian | 12.3% | 2.2% | 5.6% |
| Native American | 3.0% | 1.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 6.1% | 3.2% |
| Hispanic | 2.7% | 15.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Douglas City, CA | Dunsmuir, CA | United States |
| Married Population | 55.1% | 48.4% | 49.8% |
| Currently Married | 42.1% | 44.6% | 48.0% |
| Married but Separated | 13.0% | 3.9% | 1.8% |
| Single Population | 44.9% | 51.6% | 50.2% |
| Never Married | 29.0% | 28.5% | 33.8% |
| Divorced | 12.2% | 15.6% | 10.8% |
| Widowed | 3.7% | 7.5% | 5.6% |
| space5 | | | |
| Household Size | 2.72 | 2.49 | 2.60 |
| Households | 349 | 732 | 124,010,992 |
| Family Households | 168 | 426 | 80,755,759 |
| Married couple, w/children | 21.4% | 27.0% | 30.5% |
| Married couple, no children | 75.0% | 43.9% | 42.9% |
| Non Family Households | 181 | 306 | 43,255,233 |
| Single householder, w/children | 3.6% | 19.7% | 15.8% |
| Single householder, no children | 0.0% | 9.4% | 10.8% |