| | Magalia, CA | Artois, CA | United States |
| Population | 10,537 | 161 | 329,725,481 |
| Female Population | 51.9% | 54.0% | 50.5% |
| Male Population | 48.1% | 46.0% | 49.5% |
| Median Age | 48.8 | 59.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 11,640 | 142 | 309,327,143 |
| Population - 2000 | 10,569 | 211 | 285,036,114 |
| Population - 1990 | 8,987 | 210 | 251,960,433 |
| Pop. 2000 to Now | 10.6% | 82.0% | 15.6% |
| Pop. 1990 to Now | 30.1% | 82.9% | 30.8% |
| space4 | | | |
| Population Density | 751.8 | 55.9 | 93.4 |
| Land Area | 14.0 | 2.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Magalia, CA | Artois, CA | United States |
| Age 0 to 4 | 6.3% | 0.0% | 5.9% |
| Age 5 to 9 | 3.0% | 0.0% | 6.1% |
| Age 10 to 14 | 4.4% | 9.3% | 6.6% |
| Age 15 to 17 | 3.6% | 2.5% | 3.9% |
| Age 18 to 20 | 3.0% | 12.4% | 4.0% |
| Age 21 to 24 | 4.2% | 5.6% | 5.2% |
| Age 25 to 34 | 10.9% | 0.0% | 13.8% |
| Age 35 to 44 | 8.7% | 6.8% | 12.9% |
| Age 45 to 54 | 13.4% | 11.8% | 12.6% |
| Age 55 to 59 | 9.3% | 10.6% | 6.7% |
| Age 60 to 64 | 9.0% | 9.9% | 6.3% |
| Age 65 to 74 | 17.3% | 21.1% | 9.6% |
| Age 75 to 84 | 5.4% | 9.9% | 4.5% |
| Age 85 and over | 1.7% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Magalia, CA | Artois, CA | United States |
| White | 79.5% | 63.4% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 1.2% | 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 | 8.0% | 0.0% | 3.2% |
| Hispanic | 11.0% | 36.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Magalia, CA | Artois, CA | United States |
| Married Population | 43.2% | 45.9% | 49.8% |
| Currently Married | 41.1% | 45.9% | 48.0% |
| Married but Separated | 2.1% | 0.0% | 1.8% |
| Single Population | 56.8% | 54.1% | 50.2% |
| Never Married | 30.7% | 22.6% | 33.8% |
| Divorced | 18.1% | 7.5% | 10.8% |
| Widowed | 8.0% | 24.0% | 5.6% |
| space5 | | | |
| Household Size | 2.50 | 2.78 | 2.60 |
| Households | 4,209 | 58 | 124,010,992 |
| Family Households | 2,697 | 40 | 80,755,759 |
| Married couple, w/children | 17.5% | 7.5% | 30.5% |
| Married couple, no children | 48.1% | 65.0% | 42.9% |
| Non Family Households | 1,512 | 18 | 43,255,233 |
| Single householder, w/children | 19.7% | 27.5% | 15.8% |
| Single householder, no children | 14.7% | 0.0% | 10.8% |