| | Ethridge, TN | Kenton, TN | United States |
| Population | 592 | 1,289 | 329,725,481 |
| Female Population | 48.8% | 50.2% | 50.5% |
| Male Population | 51.2% | 49.8% | 49.5% |
| Median Age | 28.6 | 41.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 462 | 1,285 | 309,327,143 |
| Population - 2000 | 536 | 1,306 | 285,036,114 |
| Population - 1990 | 565 | 1,366 | 251,960,433 |
| Pop. 2000 to Now | -9.5% | -8.9% | 15.6% |
| Pop. 1990 to Now | -14.2% | -12.9% | 30.8% |
| space4 | | | |
| Population Density | 513.4 | 659.7 | 93.4 |
| Land Area | 1.2 | 2.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Ethridge, TN | Kenton, TN | United States |
| Age 0 to 4 | 10.8% | 2.9% | 5.9% |
| Age 5 to 9 | 7.4% | 4.7% | 6.1% |
| Age 10 to 14 | 6.6% | 6.7% | 6.6% |
| Age 15 to 17 | 3.4% | 4.0% | 3.9% |
| Age 18 to 20 | 4.2% | 1.6% | 4.0% |
| Age 21 to 24 | 9.3% | 2.3% | 5.2% |
| Age 25 to 34 | 15.2% | 21.6% | 13.8% |
| Age 35 to 44 | 13.7% | 7.1% | 12.9% |
| Age 45 to 54 | 15.2% | 12.8% | 12.6% |
| Age 55 to 59 | 3.0% | 8.4% | 6.7% |
| Age 60 to 64 | 4.7% | 10.6% | 6.3% |
| Age 65 to 74 | 3.5% | 8.4% | 9.6% |
| Age 75 to 84 | 2.5% | 6.2% | 4.5% |
| Age 85 and over | 0.3% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Ethridge, TN | Kenton, TN | United States |
| White | 93.9% | 73.8% | 59.4% |
| Black | 0.0% | 14.0% | 12.2% |
| Asian | 0.0% | 0.1% | 5.6% |
| Native American | 1.9% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 4.2% | 11.6% | 3.2% |
| Hispanic | 0.0% | 0.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Ethridge, TN | Kenton, TN | United States |
| Married Population | 52.6% | 48.1% | 49.8% |
| Currently Married | 52.1% | 44.6% | 48.0% |
| Married but Separated | 0.4% | 3.5% | 1.8% |
| Single Population | 47.4% | 51.9% | 50.2% |
| Never Married | 31.9% | 30.9% | 33.8% |
| Divorced | 4.3% | 10.7% | 10.8% |
| Widowed | 11.2% | 10.3% | 5.6% |
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| Household Size | 3.65 | 2.42 | 2.60 |
| Households | 162 | 532 | 124,010,992 |
| Family Households | 120 | 334 | 80,755,759 |
| Married couple, w/children | 40.8% | 30.5% | 30.5% |
| Married couple, no children | 39.2% | 44.6% | 42.9% |
| Non Family Households | 42 | 198 | 43,255,233 |
| Single householder, w/children | 17.5% | 16.8% | 15.8% |
| Single householder, no children | 2.5% | 8.1% | 10.8% |