| | Atlanta, GA | Clinton, MS | United States |
| Population | 492,204 | 27,830 | 329,725,481 |
| Female Population | 51.1% | 54.8% | 50.5% |
| Male Population | 49.0% | 45.2% | 49.5% |
| Median Age | 33.4 | 36.8 | 38.4 |
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| Population - 2010 | 429,414 | 25,291 | 309,327,143 |
| Population - 2000 | 416,474 | 23,347 | 285,036,114 |
| Population - 1990 | 394,017 | 21,847 | 251,960,433 |
| Pop. 2000 to Now | 23.1% | 2.3% | 15.6% |
| Pop. 1990 to Now | 30.1% | 9.3% | 30.8% |
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| Population Density | 3,630.3 | 665.3 | 93.4 |
| Land Area | 135.6 | 41.8 | 3,531,905.4 |
| Water Area | 1.0 | 0.3 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Atlanta, GA | Clinton, MS | United States |
| Age 0 to 4 | 5.3% | 6.9% | 5.9% |
| Age 5 to 9 | 5.2% | 6.6% | 6.1% |
| Age 10 to 14 | 4.3% | 8.8% | 6.6% |
| Age 15 to 17 | 2.5% | 3.3% | 3.9% |
| Age 18 to 20 | 6.2% | 4.4% | 4.0% |
| Age 21 to 24 | 7.6% | 4.8% | 5.2% |
| Age 25 to 34 | 21.6% | 12.8% | 13.8% |
| Age 35 to 44 | 14.2% | 13.5% | 12.9% |
| Age 45 to 54 | 11.4% | 10.9% | 12.6% |
| Age 55 to 59 | 5.1% | 6.8% | 6.7% |
| Age 60 to 64 | 5.0% | 5.2% | 6.3% |
| Age 65 to 74 | 7.0% | 7.5% | 9.6% |
| Age 75 to 84 | 3.2% | 5.4% | 4.5% |
| Age 85 and over | 1.4% | 3.0% | 1.9% |
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| Race | | | |
| | Atlanta, GA | Clinton, MS | United States |
| White | 39.1% | 53.1% | 59.4% |
| Black | 47.7% | 39.8% | 12.2% |
| Asian | 5.0% | 3.7% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.4% | 0.0% | 0.4% |
| Two or More Races | 2.6% | 0.7% | 3.2% |
| Hispanic | 5.0% | 2.7% | 18.4% |
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| Marriage & Family | | | |
| | Atlanta, GA | Clinton, MS | United States |
| Married Population | 30.8% | 50.0% | 49.8% |
| Currently Married | 29.0% | 49.0% | 48.0% |
| Married but Separated | 1.8% | 1.1% | 1.8% |
| Single Population | 69.2% | 50.0% | 50.2% |
| Never Married | 55.1% | 32.5% | 33.8% |
| Divorced | 10.1% | 8.6% | 10.8% |
| Widowed | 4.0% | 8.9% | 5.6% |
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| Household Size | 2.06 | 2.63 | 2.60 |
| Households | 221,171 | 10,412 | 124,010,992 |
| Family Households | 92,650 | 6,986 | 80,755,759 |
| Married couple, w/children | 21.8% | 32.1% | 30.5% |
| Married couple, no children | 37.9% | 37.2% | 42.9% |
| Non Family Households | 128,521 | 3,426 | 43,255,233 |
| Single householder, w/children | 23.8% | 18.6% | 15.8% |
| Single householder, no children | 16.4% | 12.2% | 10.8% |