| | Blountsville, AL | Elkton, TN | United States |
| Population | 1,887 | 487 | 329,725,481 |
| Female Population | 50.0% | 61.8% | 50.5% |
| Male Population | 50.0% | 38.2% | 49.5% |
| Median Age | 31.3 | 48.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,687 | 539 | 309,327,143 |
| Population - 2000 | 1,768 | 510 | 285,036,114 |
| Population - 1990 | 1,527 | 448 | 251,960,433 |
| Pop. 2000 to Now | -6.3% | 2.4% | 15.6% |
| Pop. 1990 to Now | 8.5% | 16.5% | 30.8% |
| space4 | | | |
| Population Density | 348.1 | 261.3 | 93.4 |
| Land Area | 5.4 | 1.9 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Blountsville, AL | Elkton, TN | United States |
| Age 0 to 4 | 11.4% | 8.8% | 5.9% |
| Age 5 to 9 | 7.1% | 1.4% | 6.1% |
| Age 10 to 14 | 6.2% | 5.5% | 6.6% |
| Age 15 to 17 | 1.9% | 1.2% | 3.9% |
| Age 18 to 20 | 1.6% | 8.4% | 4.0% |
| Age 21 to 24 | 7.3% | 10.9% | 5.2% |
| Age 25 to 34 | 18.4% | 3.3% | 13.8% |
| Age 35 to 44 | 9.5% | 3.5% | 12.9% |
| Age 45 to 54 | 10.9% | 25.7% | 12.6% |
| Age 55 to 59 | 5.6% | 9.4% | 6.7% |
| Age 60 to 64 | 5.6% | 9.7% | 6.3% |
| Age 65 to 74 | 7.2% | 6.2% | 9.6% |
| Age 75 to 84 | 6.8% | 6.0% | 4.5% |
| Age 85 and over | 0.6% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Blountsville, AL | Elkton, TN | United States |
| White | 68.8% | 71.3% | 59.4% |
| Black | 4.6% | 26.7% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 2.8% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.7% | 0.0% | 0.4% |
| Two or More Races | 7.4% | 2.1% | 3.2% |
| Hispanic | 15.7% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Blountsville, AL | Elkton, TN | United States |
| Married Population | 42.2% | 40.2% | 49.8% |
| Currently Married | 39.9% | 36.6% | 48.0% |
| Married but Separated | 2.3% | 3.7% | 1.8% |
| Single Population | 57.8% | 59.8% | 50.2% |
| Never Married | 31.5% | 30.2% | 33.8% |
| Divorced | 17.2% | 24.9% | 10.8% |
| Widowed | 9.1% | 4.6% | 5.6% |
| space5 | | | |
| Household Size | 2.91 | 3.01 | 2.60 |
| Households | 648 | 162 | 124,010,992 |
| Family Households | 441 | 115 | 80,755,759 |
| Married couple, w/children | 22.0% | 9.6% | 30.5% |
| Married couple, no children | 30.6% | 53.9% | 42.9% |
| Non Family Households | 207 | 47 | 43,255,233 |
| Single householder, w/children | 27.2% | 12.2% | 15.8% |
| Single householder, no children | 20.2% | 24.3% | 10.8% |