| | Oliver Springs, TN | Sweetwater, TN | United States |
| Population | 3,727 | 6,228 | 329,725,481 |
| Female Population | 46.7% | 55.9% | 50.5% |
| Male Population | 53.3% | 44.1% | 49.5% |
| Median Age | 45 | 43.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,399 | 5,810 | 309,327,143 |
| Population - 2000 | 3,303 | 5,586 | 285,036,114 |
| Population - 1990 | 3,433 | 5,066 | 251,960,433 |
| Pop. 2000 to Now | 4.1% | 6.6% | 15.6% |
| Pop. 1990 to Now | 0.2% | 17.6% | 30.8% |
| space4 | | | |
| Population Density | 645.4 | 704.8 | 93.4 |
| Land Area | 5.8 | 8.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Oliver Springs, TN | Sweetwater, TN | United States |
| Age 0 to 4 | 2.4% | 4.9% | 5.9% |
| Age 5 to 9 | 6.8% | 5.7% | 6.1% |
| Age 10 to 14 | 6.6% | 6.6% | 6.6% |
| Age 15 to 17 | 5.3% | 5.4% | 3.9% |
| Age 18 to 20 | 2.8% | 3.5% | 4.0% |
| Age 21 to 24 | 4.7% | 2.7% | 5.2% |
| Age 25 to 34 | 12.2% | 11.9% | 13.8% |
| Age 35 to 44 | 9.2% | 12.3% | 12.9% |
| Age 45 to 54 | 7.3% | 11.1% | 12.6% |
| Age 55 to 59 | 6.8% | 8.2% | 6.7% |
| Age 60 to 64 | 12.9% | 5.6% | 6.3% |
| Age 65 to 74 | 11.9% | 14.7% | 9.6% |
| Age 75 to 84 | 10.2% | 4.7% | 4.5% |
| Age 85 and over | 0.9% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Oliver Springs, TN | Sweetwater, TN | United States |
| White | 95.2% | 83.4% | 59.4% |
| Black | 0.0% | 6.2% | 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 | 2.9% | 0.0% | 0.4% |
| Two or More Races | 1.4% | 5.3% | 3.2% |
| Hispanic | 0.5% | 5.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Oliver Springs, TN | Sweetwater, TN | United States |
| Married Population | 40.5% | 46.0% | 49.8% |
| Currently Married | 40.0% | 42.9% | 48.0% |
| Married but Separated | 0.6% | 3.1% | 1.8% |
| Single Population | 59.5% | 54.0% | 50.2% |
| Never Married | 29.3% | 28.6% | 33.8% |
| Divorced | 23.3% | 15.0% | 10.8% |
| Widowed | 6.8% | 10.4% | 5.6% |
| space5 | | | |
| Household Size | 2.50 | 2.37 | 2.60 |
| Households | 1,489 | 2,551 | 124,010,992 |
| Family Households | 845 | 1,666 | 80,755,759 |
| Married couple, w/children | 24.7% | 32.6% | 30.5% |
| Married couple, no children | 45.3% | 30.3% | 42.9% |
| Non Family Households | 644 | 885 | 43,255,233 |
| Single householder, w/children | 24.7% | 27.9% | 15.8% |
| Single householder, no children | 5.2% | 9.2% | 10.8% |