| | Apison, TN | Byhalia, MS | United States |
| Population | 4,146 | 1,636 | 329,725,481 |
| Female Population | 54.5% | 56.5% | 50.5% |
| Male Population | 45.5% | 43.5% | 49.5% |
| Median Age | 47 | 43 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,598 | 1,305 | 309,327,143 |
| Population - 2000 | 2,098 | 706 | 285,036,114 |
| Population - 1990 | 1,678 | 955 | 251,960,433 |
| Pop. 2000 to Now | 50.0% | 71.8% | 15.6% |
| Pop. 1990 to Now | 87.5% | 27.0% | 30.8% |
| space4 | | | |
| Population Density | 290.3 | 228.1 | 93.4 |
| Land Area | 14.3 | 7.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Apison, TN | Byhalia, MS | United States |
| Age 0 to 4 | 5.2% | 4.5% | 5.9% |
| Age 5 to 9 | 5.0% | 6.6% | 6.1% |
| Age 10 to 14 | 6.2% | 8.4% | 6.6% |
| Age 15 to 17 | 3.7% | 6.4% | 3.9% |
| Age 18 to 20 | 2.1% | 1.9% | 4.0% |
| Age 21 to 24 | 3.9% | 6.8% | 5.2% |
| Age 25 to 34 | 5.3% | 6.8% | 13.8% |
| Age 35 to 44 | 15.3% | 11.4% | 12.9% |
| Age 45 to 54 | 21.2% | 11.8% | 12.6% |
| Age 55 to 59 | 8.2% | 2.4% | 6.7% |
| Age 60 to 64 | 7.5% | 11.0% | 6.3% |
| Age 65 to 74 | 10.4% | 16.7% | 9.6% |
| Age 75 to 84 | 4.8% | 5.1% | 4.5% |
| Age 85 and over | 1.4% | 0.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Apison, TN | Byhalia, MS | United States |
| White | 92.8% | 32.7% | 59.4% |
| Black | 0.7% | 50.7% | 12.2% |
| Asian | 1.1% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.4% | 0.6% | 3.2% |
| Hispanic | 3.0% | 16.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Apison, TN | Byhalia, MS | United States |
| Married Population | 73.2% | 38.5% | 49.8% |
| Currently Married | 73.2% | 34.9% | 48.0% |
| Married but Separated | 0.0% | 3.6% | 1.8% |
| Single Population | 26.8% | 61.5% | 50.2% |
| Never Married | 16.4% | 38.4% | 33.8% |
| Divorced | 5.7% | 7.6% | 10.8% |
| Widowed | 4.7% | 15.6% | 5.6% |
| space5 | | | |
| Household Size | 2.67 | 2.28 | 2.60 |
| Households | 1,554 | 681 | 124,010,992 |
| Family Households | 1,357 | 511 | 80,755,759 |
| Married couple, w/children | 30.3% | 26.6% | 30.5% |
| Married couple, no children | 60.4% | 21.7% | 42.9% |
| Non Family Households | 197 | 170 | 43,255,233 |
| Single householder, w/children | 3.4% | 22.3% | 15.8% |
| Single householder, no children | 6.0% | 29.4% | 10.8% |