| | Booneville, MS | Fairfield, AL | United States |
| Population | 8,702 | 10,108 | 329,725,481 |
| Female Population | 53.0% | 56.4% | 50.5% |
| Male Population | 47.0% | 43.6% | 49.5% |
| Median Age | 35.7 | 32.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 8,728 | 11,082 | 309,327,143 |
| Population - 2000 | 8,625 | 12,381 | 285,036,114 |
| Population - 1990 | 7,955 | 12,200 | 251,960,433 |
| Pop. 2000 to Now | -2.6% | -15.5% | 15.6% |
| Pop. 1990 to Now | 5.6% | -14.3% | 30.8% |
| space4 | | | |
| Population Density | 337.9 | 2,913.0 | 93.4 |
| Land Area | 25.8 | 3.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Booneville, MS | Fairfield, AL | United States |
| Age 0 to 4 | 7.1% | 5.9% | 5.9% |
| Age 5 to 9 | 8.4% | 6.9% | 6.1% |
| Age 10 to 14 | 3.0% | 5.6% | 6.6% |
| Age 15 to 17 | 3.4% | 3.1% | 3.9% |
| Age 18 to 20 | 10.3% | 10.1% | 4.0% |
| Age 21 to 24 | 4.3% | 4.8% | 5.2% |
| Age 25 to 34 | 11.4% | 15.6% | 13.8% |
| Age 35 to 44 | 13.8% | 9.3% | 12.9% |
| Age 45 to 54 | 9.8% | 10.0% | 12.6% |
| Age 55 to 59 | 5.7% | 4.3% | 6.7% |
| Age 60 to 64 | 5.2% | 9.2% | 6.3% |
| Age 65 to 74 | 9.3% | 11.9% | 9.6% |
| Age 75 to 84 | 5.4% | 2.1% | 4.5% |
| Age 85 and over | 3.0% | 1.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Booneville, MS | Fairfield, AL | United States |
| White | 77.4% | 5.1% | 59.4% |
| Black | 17.7% | 92.1% | 12.2% |
| Asian | 0.1% | 0.0% | 5.6% |
| Native American | 0.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.2% | 0.1% | 0.4% |
| Two or More Races | 3.8% | 1.7% | 3.2% |
| Hispanic | 0.8% | 1.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Booneville, MS | Fairfield, AL | United States |
| Married Population | 43.4% | 26.6% | 49.8% |
| Currently Married | 38.2% | 24.1% | 48.0% |
| Married but Separated | 5.2% | 2.4% | 1.8% |
| Single Population | 56.6% | 73.4% | 50.2% |
| Never Married | 32.6% | 51.4% | 33.8% |
| Divorced | 15.1% | 16.4% | 10.8% |
| Widowed | 8.8% | 5.7% | 5.6% |
| space5 | | | |
| Household Size | 2.46 | 2.37 | 2.60 |
| Households | 3,105 | 3,944 | 124,010,992 |
| Family Households | 1,749 | 2,371 | 80,755,759 |
| Married couple, w/children | 31.9% | 9.7% | 30.5% |
| Married couple, no children | 41.6% | 29.3% | 42.9% |
| Non Family Households | 1,356 | 1,573 | 43,255,233 |
| Single householder, w/children | 14.2% | 43.1% | 15.8% |
| Single householder, no children | 12.4% | 17.9% | 10.8% |