| | Athens, TX | Dixon, CA | United States |
| Population | 12,719 | 19,038 | 329,725,481 |
| Female Population | 53.2% | 48.7% | 50.5% |
| Male Population | 46.8% | 51.3% | 49.5% |
| Median Age | 37.9 | 34.2 | 38.4 |
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| Population - 2010 | 12,689 | 18,412 | 309,327,143 |
| Population - 2000 | 11,297 | 16,103 | 285,036,114 |
| Population - 1990 | 10,967 | 10,401 | 251,960,433 |
| Pop. 2000 to Now | 13.0% | 26.9% | 15.6% |
| Pop. 1990 to Now | 16.4% | 96.5% | 30.8% |
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| Population Density | 713.2 | 2,670.9 | 93.4 |
| Land Area | 17.8 | 7.1 | 3,531,905.4 |
| Water Area | 2.4 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Athens, TX | Dixon, CA | United States |
| Age 0 to 4 | 6.8% | 5.8% | 5.9% |
| Age 5 to 9 | 7.2% | 7.3% | 6.1% |
| Age 10 to 14 | 5.5% | 8.8% | 6.6% |
| Age 15 to 17 | 4.8% | 4.3% | 3.9% |
| Age 18 to 20 | 5.2% | 4.7% | 4.0% |
| Age 21 to 24 | 7.6% | 6.2% | 5.2% |
| Age 25 to 34 | 10.4% | 14.5% | 13.8% |
| Age 35 to 44 | 13.7% | 13.5% | 12.9% |
| Age 45 to 54 | 8.4% | 11.7% | 12.6% |
| Age 55 to 59 | 5.7% | 5.2% | 6.7% |
| Age 60 to 64 | 3.8% | 5.5% | 6.3% |
| Age 65 to 74 | 11.6% | 7.9% | 9.6% |
| Age 75 to 84 | 5.5% | 3.1% | 4.5% |
| Age 85 and over | 3.9% | 1.6% | 1.9% |
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| Race | | | |
| | Athens, TX | Dixon, CA | United States |
| White | 44.8% | 49.7% | 59.4% |
| Black | 18.6% | 2.4% | 12.2% |
| Asian | 2.2% | 3.1% | 5.6% |
| Native American | 0.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 1.9% | 3.6% | 3.2% |
| Hispanic | 32.4% | 41.1% | 18.4% |
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| Marriage & Family | | | |
| | Athens, TX | Dixon, CA | United States |
| Married Population | 46.2% | 50.0% | 49.8% |
| Currently Married | 43.0% | 47.0% | 48.0% |
| Married but Separated | 3.2% | 3.0% | 1.8% |
| Single Population | 53.8% | 50.0% | 50.2% |
| Never Married | 34.7% | 32.8% | 33.8% |
| Divorced | 10.9% | 11.4% | 10.8% |
| Widowed | 8.2% | 5.7% | 5.6% |
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| Household Size | 2.74 | 2.94 | 2.60 |
| Households | 4,276 | 6,464 | 124,010,992 |
| Family Households | 2,722 | 4,862 | 80,755,759 |
| Married couple, w/children | 33.9% | 35.2% | 30.5% |
| Married couple, no children | 37.3% | 33.3% | 42.9% |
| Non Family Households | 1,554 | 1,602 | 43,255,233 |
| Single householder, w/children | 19.1% | 19.7% | 15.8% |
| Single householder, no children | 9.7% | 11.8% | 10.8% |