| | Fair Oaks, CA | Corydon, IN | United States |
| Population | 31,750 | 3,094 | 329,725,481 |
| Female Population | 51.3% | 47.0% | 50.5% |
| Male Population | 48.8% | 53.0% | 49.5% |
| Median Age | 46.2 | 43.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 30,715 | 3,122 | 309,327,143 |
| Population - 2000 | 28,008 | 2,715 | 285,036,114 |
| Population - 1990 | 26,867 | 2,661 | 251,960,433 |
| Pop. 2000 to Now | 14.4% | 17.2% | 15.6% |
| Pop. 1990 to Now | 19.3% | 19.5% | 30.8% |
| space4 | | | |
| Population Density | 2,919.3 | 1,874.0 | 93.4 |
| Land Area | 10.9 | 1.7 | 3,531,905.4 |
| Water Area | 0.3 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Fair Oaks, CA | Corydon, IN | United States |
| Age 0 to 4 | 4.2% | 5.2% | 5.9% |
| Age 5 to 9 | 5.6% | 3.7% | 6.1% |
| Age 10 to 14 | 5.8% | 5.3% | 6.6% |
| Age 15 to 17 | 3.7% | 3.5% | 3.9% |
| Age 18 to 20 | 2.8% | 1.6% | 4.0% |
| Age 21 to 24 | 3.2% | 4.7% | 5.2% |
| Age 25 to 34 | 12.1% | 6.5% | 13.8% |
| Age 35 to 44 | 11.2% | 22.2% | 12.9% |
| Age 45 to 54 | 13.8% | 15.2% | 12.6% |
| Age 55 to 59 | 7.2% | 5.3% | 6.7% |
| Age 60 to 64 | 7.4% | 3.3% | 6.3% |
| Age 65 to 74 | 14.7% | 13.8% | 9.6% |
| Age 75 to 84 | 6.1% | 6.4% | 4.5% |
| Age 85 and over | 2.4% | 3.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Fair Oaks, CA | Corydon, IN | United States |
| White | 72.8% | 92.6% | 59.4% |
| Black | 2.0% | 1.9% | 12.2% |
| Asian | 5.2% | 0.0% | 5.6% |
| Native American | 0.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 5.7% | 0.5% | 3.2% |
| Hispanic | 14.1% | 5.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Fair Oaks, CA | Corydon, IN | United States |
| Married Population | 54.3% | 40.7% | 49.8% |
| Currently Married | 52.1% | 36.5% | 48.0% |
| Married but Separated | 2.2% | 4.1% | 1.8% |
| Single Population | 45.7% | 59.3% | 50.2% |
| Never Married | 27.2% | 14.7% | 33.8% |
| Divorced | 13.4% | 33.8% | 10.8% |
| Widowed | 5.1% | 10.8% | 5.6% |
| space5 | | | |
| Household Size | 2.43 | 2.12 | 2.60 |
| Households | 12,846 | 1,365 | 124,010,992 |
| Family Households | 8,379 | 557 | 80,755,759 |
| Married couple, w/children | 24.6% | 29.8% | 30.5% |
| Married couple, no children | 52.2% | 46.5% | 42.9% |
| Non Family Households | 4,467 | 808 | 43,255,233 |
| Single householder, w/children | 14.2% | 16.7% | 15.8% |
| Single householder, no children | 8.9% | 7.0% | 10.8% |