| | McKenzie, TN | Vinita, OK | United States |
| Population | 5,590 | 5,250 | 329,725,481 |
| Female Population | 50.5% | 51.5% | 50.5% |
| Male Population | 49.6% | 48.5% | 49.5% |
| Median Age | 37.5 | 43.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 5,261 | 5,743 | 309,327,143 |
| Population - 2000 | 5,295 | 6,472 | 285,036,114 |
| Population - 1990 | 5,168 | 5,804 | 251,960,433 |
| Pop. 2000 to Now | 0.2% | -18.0% | 15.6% |
| Pop. 1990 to Now | 2.6% | -8.6% | 30.8% |
| space4 | | | |
| Population Density | 884.5 | 875.2 | 93.4 |
| Land Area | 6.3 | 6.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | McKenzie, TN | Vinita, OK | United States |
| Age 0 to 4 | 6.0% | 5.2% | 5.9% |
| Age 5 to 9 | 5.0% | 5.3% | 6.1% |
| Age 10 to 14 | 4.7% | 7.6% | 6.6% |
| Age 15 to 17 | 4.3% | 4.4% | 3.9% |
| Age 18 to 20 | 10.8% | 5.3% | 4.0% |
| Age 21 to 24 | 4.7% | 4.8% | 5.2% |
| Age 25 to 34 | 11.9% | 9.2% | 13.8% |
| Age 35 to 44 | 9.1% | 10.7% | 12.9% |
| Age 45 to 54 | 11.2% | 14.4% | 12.6% |
| Age 55 to 59 | 7.5% | 6.7% | 6.7% |
| Age 60 to 64 | 4.8% | 7.4% | 6.3% |
| Age 65 to 74 | 11.1% | 8.7% | 9.6% |
| Age 75 to 84 | 6.1% | 6.4% | 4.5% |
| Age 85 and over | 2.7% | 3.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | McKenzie, TN | Vinita, OK | United States |
| White | 78.5% | 58.3% | 59.4% |
| Black | 15.4% | 5.0% | 12.2% |
| Asian | 1.9% | 1.0% | 5.6% |
| Native American | 0.0% | 21.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.2% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.6% | 9.5% | 3.2% |
| Hispanic | 3.4% | 4.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | McKenzie, TN | Vinita, OK | United States |
| Married Population | 42.4% | 35.7% | 49.8% |
| Currently Married | 40.8% | 33.0% | 48.0% |
| Married but Separated | 1.6% | 2.7% | 1.8% |
| Single Population | 57.6% | 64.3% | 50.2% |
| Never Married | 37.4% | 33.2% | 33.8% |
| Divorced | 12.3% | 20.8% | 10.8% |
| Widowed | 7.9% | 10.3% | 5.6% |
| space5 | | | |
| Household Size | 2.53 | 2.36 | 2.60 |
| Households | 1,986 | 2,084 | 124,010,992 |
| Family Households | 1,256 | 1,158 | 80,755,759 |
| Married couple, w/children | 29.5% | 20.4% | 30.5% |
| Married couple, no children | 43.7% | 38.9% | 42.9% |
| Non Family Households | 730 | 926 | 43,255,233 |
| Single householder, w/children | 16.2% | 25.7% | 15.8% |
| Single householder, no children | 10.6% | 15.0% | 10.8% |