| | Fayetteville, GA | Buford, GA | United States |
| Population | 18,633 | 16,811 | 329,725,481 |
| Female Population | 52.8% | 51.2% | 50.5% |
| Male Population | 47.2% | 48.8% | 49.5% |
| Median Age | 42.9 | 36.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 16,218 | 12,543 | 309,327,143 |
| Population - 2000 | 11,148 | 10,668 | 285,036,114 |
| Population - 1990 | 5,827 | 8,771 | 251,960,433 |
| Pop. 2000 to Now | 64.4% | 47.6% | 15.6% |
| Pop. 1990 to Now | 214.5% | 79.6% | 30.8% |
| space4 | | | |
| Population Density | 1,445.9 | 958.8 | 93.4 |
| Land Area | 12.9 | 17.5 | 3,531,905.4 |
| Water Area | 0.2 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Fayetteville, GA | Buford, GA | United States |
| Age 0 to 4 | 3.8% | 6.5% | 5.9% |
| Age 5 to 9 | 5.5% | 10.4% | 6.1% |
| Age 10 to 14 | 6.2% | 7.9% | 6.6% |
| Age 15 to 17 | 4.9% | 6.7% | 3.9% |
| Age 18 to 20 | 3.6% | 5.2% | 4.0% |
| Age 21 to 24 | 5.0% | 3.2% | 5.2% |
| Age 25 to 34 | 11.4% | 7.9% | 13.8% |
| Age 35 to 44 | 12.2% | 16.5% | 12.9% |
| Age 45 to 54 | 13.9% | 13.7% | 12.6% |
| Age 55 to 59 | 7.3% | 3.2% | 6.7% |
| Age 60 to 64 | 5.9% | 5.5% | 6.3% |
| Age 65 to 74 | 11.8% | 6.1% | 9.6% |
| Age 75 to 84 | 6.3% | 4.9% | 4.5% |
| Age 85 and over | 2.3% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Fayetteville, GA | Buford, GA | United States |
| White | 40.1% | 45.0% | 59.4% |
| Black | 38.3% | 12.8% | 12.2% |
| Asian | 6.3% | 3.4% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 5.3% | 0.0% | 0.4% |
| Two or More Races | 4.0% | 3.5% | 3.2% |
| Hispanic | 6.0% | 35.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Fayetteville, GA | Buford, GA | United States |
| Married Population | 51.9% | 52.3% | 49.8% |
| Currently Married | 50.7% | 49.4% | 48.0% |
| Married but Separated | 1.2% | 2.9% | 1.8% |
| Single Population | 48.1% | 47.7% | 50.2% |
| Never Married | 28.4% | 30.7% | 33.8% |
| Divorced | 14.1% | 8.8% | 10.8% |
| Widowed | 5.6% | 8.1% | 5.6% |
| space5 | | | |
| Household Size | 2.56 | 3.33 | 2.60 |
| Households | 7,120 | 4,998 | 124,010,992 |
| Family Households | 5,107 | 3,681 | 80,755,759 |
| Married couple, w/children | 27.7% | 44.1% | 30.5% |
| Married couple, no children | 43.3% | 31.8% | 42.9% |
| Non Family Households | 2,013 | 1,317 | 43,255,233 |
| Single householder, w/children | 17.6% | 13.5% | 15.8% |
| Single householder, no children | 11.3% | 10.5% | 10.8% |