| | Charleston, TN | Owosso, MI | United States |
| Population | 611 | 14,708 | 329,725,481 |
| Female Population | 53.0% | 52.5% | 50.5% |
| Male Population | 47.0% | 47.5% | 49.5% |
| Median Age | 49.8 | 37.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 652 | 15,162 | 309,327,143 |
| Population - 2000 | 630 | 15,713 | 285,036,114 |
| Population - 1990 | 653 | 16,322 | 251,960,433 |
| Pop. 2000 to Now | 12.1% | -8.8% | 15.6% |
| Pop. 1990 to Now | 8.1% | -12.2% | 30.8% |
| space4 | | | |
| Population Density | 588.6 | 2,802.6 | 93.4 |
| Land Area | 1.0 | 5.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Charleston, TN | Owosso, MI | United States |
| Age 0 to 4 | 2.1% | 5.0% | 5.9% |
| Age 5 to 9 | 6.9% | 7.6% | 6.1% |
| Age 10 to 14 | 6.5% | 6.5% | 6.6% |
| Age 15 to 17 | 3.1% | 3.7% | 3.9% |
| Age 18 to 20 | 2.1% | 5.2% | 4.0% |
| Age 21 to 24 | 3.6% | 5.2% | 5.2% |
| Age 25 to 34 | 8.3% | 14.0% | 13.8% |
| Age 35 to 44 | 9.3% | 13.0% | 12.9% |
| Age 45 to 54 | 14.9% | 12.1% | 12.6% |
| Age 55 to 59 | 10.3% | 5.9% | 6.7% |
| Age 60 to 64 | 14.6% | 6.4% | 6.3% |
| Age 65 to 74 | 9.7% | 9.1% | 9.6% |
| Age 75 to 84 | 4.7% | 3.4% | 4.5% |
| Age 85 and over | 3.8% | 2.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Charleston, TN | Owosso, MI | United States |
| White | 73.8% | 93.0% | 59.4% |
| Black | 11.8% | 1.2% | 12.2% |
| Asian | 0.0% | 0.1% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 9.2% | 2.2% | 3.2% |
| Hispanic | 5.2% | 3.1% | 18.4% |
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| Marriage & Family | | | |
| | Charleston, TN | Owosso, MI | United States |
| Married Population | 61.2% | 40.9% | 49.8% |
| Currently Married | 61.2% | 39.9% | 48.0% |
| Married but Separated | 0.0% | 1.0% | 1.8% |
| Single Population | 38.8% | 59.1% | 50.2% |
| Never Married | 17.1% | 36.1% | 33.8% |
| Divorced | 9.3% | 16.0% | 10.8% |
| Widowed | 12.4% | 7.0% | 5.6% |
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| Household Size | 2.38 | 2.33 | 2.60 |
| Households | 257 | 6,221 | 124,010,992 |
| Family Households | 156 | 3,507 | 80,755,759 |
| Married couple, w/children | 27.6% | 25.9% | 30.5% |
| Married couple, no children | 51.9% | 37.2% | 42.9% |
| Non Family Households | 101 | 2,714 | 43,255,233 |
| Single householder, w/children | 9.0% | 24.5% | 15.8% |
| Single householder, no children | 11.5% | 12.4% | 10.8% |