| | Ducktown, TN | Bristol, TN | United States |
| Population | 532 | 27,154 | 329,725,481 |
| Female Population | 64.7% | 53.2% | 50.5% |
| Male Population | 35.3% | 46.8% | 49.5% |
| Median Age | 57.9 | 40.3 | 38.4 |
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| Population - 2010 | 471 | 26,754 | 309,327,143 |
| Population - 2000 | 427 | 24,821 | 285,036,114 |
| Population - 1990 | 421 | 23,421 | 251,960,433 |
| Pop. 2000 to Now | 9.4% | 9.4% | 15.6% |
| Pop. 1990 to Now | 10.9% | 15.9% | 30.8% |
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| Population Density | 201.4 | 831.3 | 93.4 |
| Land Area | 2.6 | 32.7 | 3,531,905.4 |
| Water Area | 0.0 | 0.2 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Ducktown, TN | Bristol, TN | United States |
| Age 0 to 4 | 3.9% | 5.7% | 5.9% |
| Age 5 to 9 | 0.9% | 4.9% | 6.1% |
| Age 10 to 14 | 1.1% | 6.8% | 6.6% |
| Age 15 to 17 | 1.3% | 4.3% | 3.9% |
| Age 18 to 20 | 1.1% | 3.8% | 4.0% |
| Age 21 to 24 | 4.9% | 4.8% | 5.2% |
| Age 25 to 34 | 3.6% | 14.1% | 13.8% |
| Age 35 to 44 | 1.5% | 11.2% | 12.9% |
| Age 45 to 54 | 12.4% | 12.2% | 12.6% |
| Age 55 to 59 | 25.6% | 7.2% | 6.7% |
| Age 60 to 64 | 15.2% | 7.2% | 6.3% |
| Age 65 to 74 | 9.8% | 10.1% | 9.6% |
| Age 75 to 84 | 8.8% | 5.5% | 4.5% |
| Age 85 and over | 9.8% | 2.3% | 1.9% |
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| Race | | | |
| | Ducktown, TN | Bristol, TN | United States |
| White | 95.7% | 90.1% | 59.4% |
| Black | 1.7% | 2.6% | 12.2% |
| Asian | 0.0% | 0.5% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.5% | 3.9% | 3.2% |
| Hispanic | 1.1% | 2.9% | 18.4% |
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| Marriage & Family | | | |
| | Ducktown, TN | Bristol, TN | United States |
| Married Population | 37.6% | 48.0% | 49.8% |
| Currently Married | 35.2% | 45.3% | 48.0% |
| Married but Separated | 2.4% | 2.7% | 1.8% |
| Single Population | 62.4% | 52.0% | 50.2% |
| Never Married | 30.6% | 27.2% | 33.8% |
| Divorced | 13.0% | 16.3% | 10.8% |
| Widowed | 18.8% | 8.5% | 5.6% |
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| Household Size | 1.68 | 2.26 | 2.60 |
| Households | 266 | 11,750 | 124,010,992 |
| Family Households | 102 | 6,799 | 80,755,759 |
| Married couple, w/children | 16.7% | 29.1% | 30.5% |
| Married couple, no children | 65.7% | 40.1% | 42.9% |
| Non Family Households | 164 | 4,951 | 43,255,233 |
| Single householder, w/children | 4.9% | 20.2% | 15.8% |
| Single householder, no children | 12.7% | 10.7% | 10.8% |