| | Mooresville, IN | Olive Branch, MS | United States |
| Population | 9,429 | 39,136 | 329,725,481 |
| Female Population | 50.9% | 52.4% | 50.5% |
| Male Population | 49.1% | 47.6% | 49.5% |
| Median Age | 44.7 | 38.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 9,376 | 33,599 | 309,327,143 |
| Population - 2000 | 9,273 | 21,054 | 285,036,114 |
| Population - 1990 | 5,541 | 3,567 | 251,960,433 |
| Pop. 2000 to Now | 6.4% | 88.3% | 15.6% |
| Pop. 1990 to Now | 78.0% | 1,011.5% | 30.8% |
| space4 | | | |
| Population Density | 1,466.6 | 1,051.9 | 93.4 |
| Land Area | 6.4 | 37.2 | 3,531,905.4 |
| Water Area | 0.1 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Mooresville, IN | Olive Branch, MS | United States |
| Age 0 to 4 | 5.3% | 5.7% | 5.9% |
| Age 5 to 9 | 4.3% | 7.0% | 6.1% |
| Age 10 to 14 | 7.3% | 7.2% | 6.6% |
| Age 15 to 17 | 4.1% | 4.4% | 3.9% |
| Age 18 to 20 | 2.8% | 3.8% | 4.0% |
| Age 21 to 24 | 6.2% | 4.3% | 5.2% |
| Age 25 to 34 | 11.2% | 12.7% | 13.8% |
| Age 35 to 44 | 9.2% | 13.9% | 12.9% |
| Age 45 to 54 | 13.2% | 14.2% | 12.6% |
| Age 55 to 59 | 10.7% | 6.7% | 6.7% |
| Age 60 to 64 | 6.3% | 5.8% | 6.3% |
| Age 65 to 74 | 9.2% | 8.2% | 9.6% |
| Age 75 to 84 | 6.0% | 4.2% | 4.5% |
| Age 85 and over | 4.2% | 1.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Mooresville, IN | Olive Branch, MS | United States |
| White | 94.6% | 56.2% | 59.4% |
| Black | 0.3% | 32.3% | 12.2% |
| Asian | 0.5% | 2.2% | 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 | 2.7% | 3.7% | 3.2% |
| Hispanic | 1.9% | 5.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Mooresville, IN | Olive Branch, MS | United States |
| Married Population | 51.0% | 53.9% | 49.8% |
| Currently Married | 49.2% | 51.9% | 48.0% |
| Married but Separated | 1.7% | 2.0% | 1.8% |
| Single Population | 49.0% | 46.1% | 50.2% |
| Never Married | 27.8% | 27.6% | 33.8% |
| Divorced | 12.3% | 12.9% | 10.8% |
| Widowed | 8.9% | 5.7% | 5.6% |
| space5 | | | |
| Household Size | 2.47 | 2.65 | 2.60 |
| Households | 3,695 | 14,751 | 124,010,992 |
| Family Households | 2,495 | 10,477 | 80,755,759 |
| Married couple, w/children | 24.5% | 30.1% | 30.5% |
| Married couple, no children | 46.3% | 44.0% | 42.9% |
| Non Family Households | 1,200 | 4,274 | 43,255,233 |
| Single householder, w/children | 16.6% | 16.6% | 15.8% |
| Single householder, no children | 12.6% | 9.3% | 10.8% |