| | Parsons, TN | Collierville, TN | United States |
| Population | 2,462 | 50,669 | 329,725,481 |
| Female Population | 50.5% | 51.5% | 50.5% |
| Male Population | 49.5% | 48.5% | 49.5% |
| Median Age | 42 | 40.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,353 | 45,662 | 309,327,143 |
| Population - 2000 | 2,452 | 31,872 | 285,036,114 |
| Population - 1990 | 2,033 | 14,427 | 251,960,433 |
| Pop. 2000 to Now | -7.3% | 61.4% | 15.6% |
| Pop. 1990 to Now | 11.8% | 256.6% | 30.8% |
| space4 | | | |
| Population Density | 609.1 | 1,399.6 | 93.4 |
| Land Area | 4.0 | 36.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Parsons, TN | Collierville, TN | United States |
| Age 0 to 4 | 3.4% | 6.1% | 5.9% |
| Age 5 to 9 | 7.2% | 6.5% | 6.1% |
| Age 10 to 14 | 6.8% | 8.8% | 6.6% |
| Age 15 to 17 | 6.1% | 5.1% | 3.9% |
| Age 18 to 20 | 1.0% | 2.8% | 4.0% |
| Age 21 to 24 | 4.8% | 3.2% | 5.2% |
| Age 25 to 34 | 11.0% | 10.2% | 13.8% |
| Age 35 to 44 | 13.3% | 12.4% | 12.9% |
| Age 45 to 54 | 6.5% | 15.8% | 12.6% |
| Age 55 to 59 | 7.8% | 6.6% | 6.7% |
| Age 60 to 64 | 7.5% | 8.0% | 6.3% |
| Age 65 to 74 | 10.8% | 9.3% | 9.6% |
| Age 75 to 84 | 10.0% | 3.1% | 4.5% |
| Age 85 and over | 3.9% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Parsons, TN | Collierville, TN | United States |
| White | 92.7% | 72.3% | 59.4% |
| Black | 5.2% | 10.1% | 12.2% |
| Asian | 0.2% | 11.2% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 1.2% | 2.5% | 3.2% |
| Hispanic | 0.7% | 3.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Parsons, TN | Collierville, TN | United States |
| Married Population | 43.3% | 66.1% | 49.8% |
| Currently Married | 39.4% | 65.2% | 48.0% |
| Married but Separated | 3.9% | 0.9% | 1.8% |
| Single Population | 56.7% | 33.9% | 50.2% |
| Never Married | 27.5% | 21.9% | 33.8% |
| Divorced | 12.0% | 7.8% | 10.8% |
| Widowed | 17.2% | 4.2% | 5.6% |
| space5 | | | |
| Household Size | 2.41 | 2.86 | 2.60 |
| Households | 976 | 17,699 | 124,010,992 |
| Family Households | 510 | 14,219 | 80,755,759 |
| Married couple, w/children | 28.0% | 42.5% | 30.5% |
| Married couple, no children | 42.2% | 45.5% | 42.9% |
| Non Family Households | 466 | 3,480 | 43,255,233 |
| Single householder, w/children | 22.7% | 7.4% | 15.8% |
| Single householder, no children | 7.1% | 4.6% | 10.8% |