| | Louisville, GA | Baxley, GA | United States |
| Population | 2,545 | 4,988 | 329,725,481 |
| Female Population | 45.7% | 57.5% | 50.5% |
| Male Population | 54.3% | 42.5% | 49.5% |
| Median Age | 32 | 37.8 | 38.4 |
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| Population - 2010 | 2,486 | 4,711 | 309,327,143 |
| Population - 2000 | 2,712 | 4,150 | 285,036,114 |
| Population - 1990 | 2,429 | 3,841 | 251,960,433 |
| Pop. 2000 to Now | -19.3% | 12.1% | 15.6% |
| Pop. 1990 to Now | -9.9% | 21.1% | 30.8% |
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| Population Density | 705.6 | 623.8 | 93.4 |
| Land Area | 3.6 | 8.0 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Louisville, GA | Baxley, GA | United States |
| Age 0 to 4 | 4.8% | 6.5% | 5.9% |
| Age 5 to 9 | 8.4% | 11.3% | 6.1% |
| Age 10 to 14 | 9.5% | 5.6% | 6.6% |
| Age 15 to 17 | 4.8% | 5.4% | 3.9% |
| Age 18 to 20 | 4.0% | 0.3% | 4.0% |
| Age 21 to 24 | 3.9% | 5.1% | 5.2% |
| Age 25 to 34 | 17.7% | 12.1% | 13.8% |
| Age 35 to 44 | 9.5% | 13.0% | 12.9% |
| Age 45 to 54 | 7.2% | 13.1% | 12.6% |
| Age 55 to 59 | 5.1% | 6.4% | 6.7% |
| Age 60 to 64 | 5.8% | 3.7% | 6.3% |
| Age 65 to 74 | 10.8% | 8.4% | 9.6% |
| Age 75 to 84 | 4.9% | 5.1% | 4.5% |
| Age 85 and over | 3.5% | 3.8% | 1.9% |
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| Race | | | |
| | Louisville, GA | Baxley, GA | United States |
| White | 23.4% | 57.1% | 59.4% |
| Black | 70.7% | 24.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.3% | 1.7% | 3.2% |
| Hispanic | 5.5% | 17.3% | 18.4% |
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| Marriage & Family | | | |
| | Louisville, GA | Baxley, GA | United States |
| Married Population | 29.9% | 55.3% | 49.8% |
| Currently Married | 25.3% | 46.5% | 48.0% |
| Married but Separated | 4.5% | 8.8% | 1.8% |
| Single Population | 70.1% | 44.7% | 50.2% |
| Never Married | 41.8% | 24.2% | 33.8% |
| Divorced | 16.3% | 10.6% | 10.8% |
| Widowed | 12.1% | 9.8% | 5.6% |
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| Household Size | 2.71 | 2.56 | 2.60 |
| Households | 882 | 1,875 | 124,010,992 |
| Family Households | 590 | 1,162 | 80,755,759 |
| Married couple, w/children | 18.5% | 43.7% | 30.5% |
| Married couple, no children | 22.4% | 28.4% | 42.9% |
| Non Family Households | 292 | 713 | 43,255,233 |
| Single householder, w/children | 36.9% | 22.1% | 15.8% |
| Single householder, no children | 22.2% | 5.8% | 10.8% |