| | Centerville, TN | McKenzie, TN | United States |
| Population | 3,526 | 5,590 | 329,725,481 |
| Female Population | 51.7% | 50.5% | 50.5% |
| Male Population | 48.3% | 49.6% | 49.5% |
| Median Age | 49.2 | 37.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,603 | 5,261 | 309,327,143 |
| Population - 2000 | 3,793 | 5,295 | 285,036,114 |
| Population - 1990 | 3,616 | 5,168 | 251,960,433 |
| Pop. 2000 to Now | -6.1% | 0.2% | 15.6% |
| Pop. 1990 to Now | -1.5% | 2.6% | 30.8% |
| space4 | | | |
| Population Density | 327.7 | 884.5 | 93.4 |
| Land Area | 10.8 | 6.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Centerville, TN | McKenzie, TN | United States |
| Age 0 to 4 | 5.4% | 6.0% | 5.9% |
| Age 5 to 9 | 5.2% | 5.0% | 6.1% |
| Age 10 to 14 | 2.9% | 4.7% | 6.6% |
| Age 15 to 17 | 3.1% | 4.3% | 3.9% |
| Age 18 to 20 | 2.9% | 10.8% | 4.0% |
| Age 21 to 24 | 5.6% | 4.7% | 5.2% |
| Age 25 to 34 | 11.8% | 11.9% | 13.8% |
| Age 35 to 44 | 8.4% | 9.1% | 12.9% |
| Age 45 to 54 | 14.4% | 11.2% | 12.6% |
| Age 55 to 59 | 8.2% | 7.5% | 6.7% |
| Age 60 to 64 | 7.7% | 4.8% | 6.3% |
| Age 65 to 74 | 11.0% | 11.1% | 9.6% |
| Age 75 to 84 | 8.5% | 6.1% | 4.5% |
| Age 85 and over | 5.0% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Centerville, TN | McKenzie, TN | United States |
| White | 94.8% | 78.5% | 59.4% |
| Black | 1.7% | 15.4% | 12.2% |
| Asian | 0.0% | 1.9% | 5.6% |
| Native American | 0.3% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.3% | 0.2% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.4% | 0.6% | 3.2% |
| Hispanic | 2.6% | 3.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Centerville, TN | McKenzie, TN | United States |
| Married Population | 44.9% | 42.4% | 49.8% |
| Currently Married | 44.0% | 40.8% | 48.0% |
| Married but Separated | 0.9% | 1.6% | 1.8% |
| Single Population | 55.1% | 57.6% | 50.2% |
| Never Married | 28.1% | 37.4% | 33.8% |
| Divorced | 13.1% | 12.3% | 10.8% |
| Widowed | 13.8% | 7.9% | 5.6% |
| space5 | | | |
| Household Size | 2.49 | 2.53 | 2.60 |
| Households | 1,312 | 1,986 | 124,010,992 |
| Family Households | 796 | 1,256 | 80,755,759 |
| Married couple, w/children | 25.9% | 29.5% | 30.5% |
| Married couple, no children | 46.7% | 43.7% | 42.9% |
| Non Family Households | 516 | 730 | 43,255,233 |
| Single householder, w/children | 5.2% | 16.2% | 15.8% |
| Single householder, no children | 22.2% | 10.6% | 10.8% |