| | Fairmead, CA | Anza, CA | United States |
| Population | 1,382 | 2,396 | 329,725,481 |
| Female Population | 53.8% | 42.2% | 50.5% |
| Male Population | 46.2% | 57.9% | 49.5% |
| Median Age | 35.6 | 38.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 935 | 2,789 | 309,327,143 |
| Population - 2000 | 4,928 | 2,291 | 285,036,114 |
| Population - 1990 | 913 | 1,985 | 251,960,433 |
| Pop. 2000 to Now | -58.2% | 52.2% | 15.6% |
| Pop. 1990 to Now | 125.7% | 75.6% | 30.8% |
| space4 | | | |
| Population Density | 178.7 | 86.8 | 93.4 |
| Land Area | 7.7 | 27.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Fairmead, CA | Anza, CA | United States |
| Age 0 to 4 | 12.0% | 3.2% | 5.9% |
| Age 5 to 9 | 10.3% | 10.7% | 6.1% |
| Age 10 to 14 | 2.2% | 14.8% | 6.6% |
| Age 15 to 17 | 0.8% | 5.6% | 3.9% |
| Age 18 to 20 | 1.4% | 6.6% | 4.0% |
| Age 21 to 24 | 11.4% | 0.6% | 5.2% |
| Age 25 to 34 | 11.1% | 4.8% | 13.8% |
| Age 35 to 44 | 11.3% | 18.2% | 12.9% |
| Age 45 to 54 | 11.3% | 6.8% | 12.6% |
| Age 55 to 59 | 8.5% | 6.6% | 6.7% |
| Age 60 to 64 | 9.5% | 11.4% | 6.3% |
| Age 65 to 74 | 7.2% | 7.1% | 9.6% |
| Age 75 to 84 | 1.8% | 2.9% | 4.5% |
| Age 85 and over | 1.2% | 0.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Fairmead, CA | Anza, CA | United States |
| White | 28.1% | 66.3% | 59.4% |
| Black | 1.5% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 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% | 0.0% | 3.2% |
| Hispanic | 70.3% | 32.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Fairmead, CA | Anza, CA | United States |
| Married Population | 67.3% | 54.1% | 49.8% |
| Currently Married | 66.1% | 54.1% | 48.0% |
| Married but Separated | 1.2% | 0.0% | 1.8% |
| Single Population | 32.7% | 45.9% | 50.2% |
| Never Married | 21.4% | 26.2% | 33.8% |
| Divorced | 4.9% | 15.6% | 10.8% |
| Widowed | 6.4% | 4.2% | 5.6% |
| space5 | | | |
| Household Size | 3.18 | 3.16 | 2.60 |
| Households | 435 | 758 | 124,010,992 |
| Family Households | 320 | 481 | 80,755,759 |
| Married couple, w/children | 28.4% | 55.9% | 30.5% |
| Married couple, no children | 42.8% | 22.2% | 42.9% |
| Non Family Households | 115 | 277 | 43,255,233 |
| Single householder, w/children | 12.5% | 13.7% | 15.8% |
| Single householder, no children | 16.3% | 8.1% | 10.8% |