| | Warrenton, VA | Durham, NC | United States |
| Population | 10,002 | 279,106 | 329,725,481 |
| Female Population | 56.4% | 52.9% | 50.5% |
| Male Population | 43.6% | 47.1% | 49.5% |
| Median Age | 40.2 | 34.6 | 38.4 |
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| Population - 2010 | 9,622 | 231,586 | 309,327,143 |
| Population - 2000 | 6,670 | 187,035 | 285,036,114 |
| Population - 1990 | 4,830 | 136,611 | 251,960,433 |
| Pop. 2000 to Now | 49.7% | 52.9% | 15.6% |
| Pop. 1990 to Now | 106.7% | 109.3% | 30.8% |
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| Population Density | 2,286.7 | 2,488.1 | 93.4 |
| Land Area | 4.4 | 112.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.9 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Warrenton, VA | Durham, NC | United States |
| Age 0 to 4 | 8.0% | 6.4% | 5.9% |
| Age 5 to 9 | 4.7% | 5.7% | 6.1% |
| Age 10 to 14 | 6.5% | 5.5% | 6.6% |
| Age 15 to 17 | 3.5% | 3.3% | 3.9% |
| Age 18 to 20 | 5.4% | 5.0% | 4.0% |
| Age 21 to 24 | 5.0% | 6.0% | 5.2% |
| Age 25 to 34 | 9.7% | 19.1% | 13.8% |
| Age 35 to 44 | 9.9% | 14.0% | 12.9% |
| Age 45 to 54 | 13.4% | 11.9% | 12.6% |
| Age 55 to 59 | 7.8% | 5.6% | 6.7% |
| Age 60 to 64 | 9.4% | 5.4% | 6.3% |
| Age 65 to 74 | 8.2% | 7.7% | 9.6% |
| Age 75 to 84 | 5.9% | 3.3% | 4.5% |
| Age 85 and over | 2.5% | 1.3% | 1.9% |
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| Race | | | |
| | Warrenton, VA | Durham, NC | United States |
| White | 75.0% | 40.6% | 59.4% |
| Black | 9.3% | 36.7% | 12.2% |
| Asian | 1.7% | 5.3% | 5.6% |
| Native American | 0.1% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.2% | 0.3% | 0.4% |
| Two or More Races | 4.8% | 3.5% | 3.2% |
| Hispanic | 8.9% | 13.2% | 18.4% |
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| Marriage & Family | | | |
| | Warrenton, VA | Durham, NC | United States |
| Married Population | 46.8% | 42.9% | 49.8% |
| Currently Married | 44.1% | 40.7% | 48.0% |
| Married but Separated | 2.6% | 2.2% | 1.8% |
| Single Population | 53.2% | 57.1% | 50.2% |
| Never Married | 30.3% | 43.1% | 33.8% |
| Divorced | 12.2% | 9.9% | 10.8% |
| Widowed | 10.8% | 4.1% | 5.6% |
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| Household Size | 2.43 | 2.27 | 2.60 |
| Households | 4,016 | 117,638 | 124,010,992 |
| Family Households | 2,159 | 64,953 | 80,755,759 |
| Married couple, w/children | 37.4% | 27.4% | 30.5% |
| Married couple, no children | 34.6% | 39.4% | 42.9% |
| Non Family Households | 1,857 | 52,685 | 43,255,233 |
| Single householder, w/children | 17.0% | 20.7% | 15.8% |
| Single householder, no children | 10.9% | 12.4% | 10.8% |