| | Parker, TX | Lucas, TX | United States |
| Population | 5,352 | 7,437 | 329,725,481 |
| Female Population | 44.8% | 49.1% | 50.5% |
| Male Population | 55.2% | 50.9% | 49.5% |
| Median Age | 41.7 | 45.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 3,747 | 5,454 | 309,327,143 |
| Population - 2000 | 1,379 | 2,890 | 285,036,114 |
| Population - 1990 | 1,235 | 2,205 | 251,960,433 |
| Pop. 2000 to Now | 294.6% | 205.2% | 15.6% |
| Pop. 1990 to Now | 340.7% | 300.0% | 30.8% |
| space4 | | | |
| Population Density | 630.9 | 516.1 | 93.4 |
| Land Area | 8.5 | 14.4 | 3,531,905.4 |
| Water Area | 0.0 | 0.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Parker, TX | Lucas, TX | United States |
| Age 0 to 4 | 3.8% | 3.3% | 5.9% |
| Age 5 to 9 | 9.3% | 5.2% | 6.1% |
| Age 10 to 14 | 6.1% | 12.2% | 6.6% |
| Age 15 to 17 | 7.8% | 6.6% | 3.9% |
| Age 18 to 20 | 3.0% | 3.2% | 4.0% |
| Age 21 to 24 | 7.1% | 2.2% | 5.2% |
| Age 25 to 34 | 3.1% | 5.5% | 13.8% |
| Age 35 to 44 | 16.5% | 9.9% | 12.9% |
| Age 45 to 54 | 15.6% | 21.9% | 12.6% |
| Age 55 to 59 | 5.1% | 11.0% | 6.7% |
| Age 60 to 64 | 5.1% | 10.5% | 6.3% |
| Age 65 to 74 | 10.1% | 6.5% | 9.6% |
| Age 75 to 84 | 5.2% | 2.0% | 4.5% |
| Age 85 and over | 2.1% | 0.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Parker, TX | Lucas, TX | United States |
| White | 63.4% | 81.1% | 59.4% |
| Black | 10.0% | 4.0% | 12.2% |
| Asian | 16.7% | 3.5% | 5.6% |
| Native American | 0.1% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.8% | 1.2% | 3.2% |
| Hispanic | 9.1% | 9.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Parker, TX | Lucas, TX | United States |
| Married Population | 61.0% | 69.6% | 49.8% |
| Currently Married | 60.8% | 69.6% | 48.0% |
| Married but Separated | 0.2% | 0.0% | 1.8% |
| Single Population | 39.0% | 30.4% | 50.2% |
| Never Married | 25.6% | 19.6% | 33.8% |
| Divorced | 3.0% | 8.7% | 10.8% |
| Widowed | 10.4% | 2.1% | 5.6% |
| space5 | | | |
| Household Size | 3.94 | 3.08 | 2.60 |
| Households | 1,359 | 2,412 | 124,010,992 |
| Family Households | 1,336 | 2,027 | 80,755,759 |
| Married couple, w/children | 59.1% | 46.2% | 30.5% |
| Married couple, no children | 35.9% | 48.0% | 42.9% |
| Non Family Households | 23 | 385 | 43,255,233 |
| Single householder, w/children | 2.2% | 2.7% | 15.8% |
| Single householder, no children | 2.8% | 3.1% | 10.8% |