| | Stafford Courthouse, VA | Sacramento, CA | United States |
| Population | 4,910 | 518,605 | 329,725,481 |
| Female Population | 43.0% | 50.8% | 50.5% |
| Male Population | 57.0% | 49.2% | 49.5% |
| Median Age | 36.7 | 35.2 | 38.4 |
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| Population - 2010 | 4,064 | 467,246 | 309,327,143 |
| Population - 2000 | 2,104 | 407,018 | 285,036,114 |
| Population - 1990 | 2,183 | 369,365 | 251,960,433 |
| Pop. 2000 to Now | 102.5% | 26.0% | 15.6% |
| Pop. 1990 to Now | 95.1% | 38.8% | 30.8% |
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| Population Density | 1,148.3 | 5,300.8 | 93.4 |
| Land Area | 4.3 | 97.8 | 3,531,905.4 |
| Water Area | 0.0 | 2.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Stafford Courthouse, VA | Sacramento, CA | United States |
| Age 0 to 4 | 4.6% | 6.3% | 5.9% |
| Age 5 to 9 | 1.6% | 6.2% | 6.1% |
| Age 10 to 14 | 4.3% | 6.3% | 6.6% |
| Age 15 to 17 | 3.4% | 3.7% | 3.9% |
| Age 18 to 20 | 5.0% | 3.5% | 4.0% |
| Age 21 to 24 | 5.4% | 5.4% | 5.2% |
| Age 25 to 34 | 22.2% | 18.3% | 13.8% |
| Age 35 to 44 | 19.5% | 14.1% | 12.9% |
| Age 45 to 54 | 13.1% | 11.8% | 12.6% |
| Age 55 to 59 | 6.5% | 5.5% | 6.7% |
| Age 60 to 64 | 5.7% | 5.7% | 6.3% |
| Age 65 to 74 | 6.3% | 8.0% | 9.6% |
| Age 75 to 84 | 1.4% | 3.5% | 4.5% |
| Age 85 and over | 1.0% | 1.7% | 1.9% |
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| Race | | | |
| | Stafford Courthouse, VA | Sacramento, CA | United States |
| White | 41.2% | 31.1% | 59.4% |
| Black | 32.1% | 12.8% | 12.2% |
| Asian | 1.7% | 18.7% | 5.6% |
| Native American | 0.2% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 1.8% | 0.2% |
| Other | 0.3% | 0.5% | 0.4% |
| Two or More Races | 12.1% | 5.9% | 3.2% |
| Hispanic | 12.4% | 28.9% | 18.4% |
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| Marriage & Family | | | |
| | Stafford Courthouse, VA | Sacramento, CA | United States |
| Married Population | 51.6% | 43.6% | 49.8% |
| Currently Married | 46.0% | 41.1% | 48.0% |
| Married but Separated | 5.6% | 2.6% | 1.8% |
| Single Population | 48.4% | 56.4% | 50.2% |
| Never Married | 39.6% | 40.5% | 33.8% |
| Divorced | 7.5% | 11.2% | 10.8% |
| Widowed | 1.3% | 4.8% | 5.6% |
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| Household Size | 2.48 | 2.63 | 2.60 |
| Households | 1,394 | 194,004 | 124,010,992 |
| Family Households | 928 | 115,399 | 80,755,759 |
| Married couple, w/children | 51.4% | 30.6% | 30.5% |
| Married couple, no children | 35.9% | 34.9% | 42.9% |
| Non Family Households | 466 | 78,605 | 43,255,233 |
| Single householder, w/children | 5.3% | 20.4% | 15.8% |
| Single householder, no children | 7.4% | 14.1% | 10.8% |