| | Sparta, GA | Milledgeville, GA | United States |
| Population | 2,065 | 17,278 | 329,725,481 |
| Female Population | 59.0% | 48.2% | 50.5% |
| Male Population | 41.0% | 51.8% | 49.5% |
| Median Age | 30.7 | 26.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,383 | 18,133 | 309,327,143 |
| Population - 2000 | 1,522 | 18,757 | 285,036,114 |
| Population - 1990 | 1,710 | 17,727 | 251,960,433 |
| Pop. 2000 to Now | -19.8% | -1.3% | 15.6% |
| Pop. 1990 to Now | -28.7% | 4.4% | 30.8% |
| space4 | | | |
| Population Density | 1,136.5 | 849.4 | 93.4 |
| Land Area | 1.8 | 20.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Sparta, GA | Milledgeville, GA | United States |
| Age 0 to 4 | 11.3% | 4.2% | 5.9% |
| Age 5 to 9 | 17.1% | 3.4% | 6.1% |
| Age 10 to 14 | 5.3% | 3.5% | 6.6% |
| Age 15 to 17 | 5.9% | 2.6% | 3.9% |
| Age 18 to 20 | 0.7% | 18.6% | 4.0% |
| Age 21 to 24 | 4.2% | 13.9% | 5.2% |
| Age 25 to 34 | 8.2% | 13.8% | 13.8% |
| Age 35 to 44 | 8.0% | 9.6% | 12.9% |
| Age 45 to 54 | 8.7% | 8.5% | 12.6% |
| Age 55 to 59 | 2.5% | 5.2% | 6.7% |
| Age 60 to 64 | 5.6% | 5.8% | 6.3% |
| Age 65 to 74 | 17.0% | 6.3% | 9.6% |
| Age 75 to 84 | 4.5% | 3.3% | 4.5% |
| Age 85 and over | 0.9% | 1.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Sparta, GA | Milledgeville, GA | United States |
| White | 12.3% | 50.7% | 59.4% |
| Black | 87.7% | 41.4% | 12.2% |
| Asian | 0.0% | 2.9% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 0.0% | 2.1% | 3.2% |
| Hispanic | 0.0% | 2.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Sparta, GA | Milledgeville, GA | United States |
| Married Population | 31.4% | 25.9% | 49.8% |
| Currently Married | 27.3% | 24.0% | 48.0% |
| Married but Separated | 4.0% | 1.8% | 1.8% |
| Single Population | 68.6% | 74.1% | 50.2% |
| Never Married | 47.7% | 60.3% | 33.8% |
| Divorced | 13.2% | 9.4% | 10.8% |
| Widowed | 7.7% | 4.4% | 5.6% |
| space5 | | | |
| Household Size | 3.56 | 2.36 | 2.60 |
| Households | 563 | 5,308 | 124,010,992 |
| Family Households | 371 | 2,606 | 80,755,759 |
| Married couple, w/children | 7.5% | 19.8% | 30.5% |
| Married couple, no children | 29.7% | 40.9% | 42.9% |
| Non Family Households | 192 | 2,702 | 43,255,233 |
| Single householder, w/children | 42.3% | 28.1% | 15.8% |
| Single householder, no children | 20.5% | 11.2% | 10.8% |