| | Pelham, TN | Flintville, TN | United States |
| Population | 363 | 469 | 329,725,481 |
| Female Population | 59.2% | 40.7% | 50.5% |
| Male Population | 40.8% | 59.3% | 49.5% |
| Median Age | 38.3 | 55.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 374 | 378 | 309,327,143 |
| Population - 2000 | 445 | 577 | 285,036,114 |
| Population - 1990 | 430 | 457 | 251,960,433 |
| Pop. 2000 to Now | -8.1% | 28.1% | 15.6% |
| Pop. 1990 to Now | -4.9% | 61.7% | 30.8% |
| space4 | | | |
| Population Density | 21.8 | 88.1 | 93.4 |
| Land Area | 16.6 | 5.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Pelham, TN | Flintville, TN | United States |
| Age 0 to 4 | 6.6% | 0.0% | 5.9% |
| Age 5 to 9 | 2.8% | 0.0% | 6.1% |
| Age 10 to 14 | 4.1% | 7.9% | 6.6% |
| Age 15 to 17 | 12.9% | 0.0% | 3.9% |
| Age 18 to 20 | 10.7% | 3.8% | 4.0% |
| Age 21 to 24 | 1.4% | 11.3% | 5.2% |
| Age 25 to 34 | 5.0% | 3.6% | 13.8% |
| Age 35 to 44 | 22.6% | 10.2% | 12.9% |
| Age 45 to 54 | 11.8% | 0.9% | 12.6% |
| Age 55 to 59 | 4.7% | 27.9% | 6.7% |
| Age 60 to 64 | 4.1% | 0.0% | 6.3% |
| Age 65 to 74 | 10.7% | 22.0% | 9.6% |
| Age 75 to 84 | 2.5% | 12.4% | 4.5% |
| Age 85 and over | 0.0% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Pelham, TN | Flintville, TN | United States |
| White | 98.1% | 97.4% | 59.4% |
| Black | 0.8% | 0.0% | 12.2% |
| Asian | 0.0% | 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 | 1.1% | 2.6% | 3.2% |
| Hispanic | 0.0% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Pelham, TN | Flintville, TN | United States |
| Married Population | 48.7% | 28.2% | 49.8% |
| Currently Married | 46.5% | 28.2% | 48.0% |
| Married but Separated | 2.2% | 0.0% | 1.8% |
| Single Population | 51.3% | 71.8% | 50.2% |
| Never Married | 32.5% | 31.5% | 33.8% |
| Divorced | 9.6% | 10.2% | 10.8% |
| Widowed | 9.2% | 30.1% | 5.6% |
| space5 | | | |
| Household Size | 2.71 | 2.06 | 2.60 |
| Households | 134 | 228 | 124,010,992 |
| Family Households | 84 | 171 | 80,755,759 |
| Married couple, w/children | 84.5% | 0.0% | 30.5% |
| Married couple, no children | 10.7% | 37.4% | 42.9% |
| Non Family Households | 50 | 57 | 43,255,233 |
| Single householder, w/children | 4.8% | 7.6% | 15.8% |
| Single householder, no children | 0.0% | 55.0% | 10.8% |