| | Parkway, CA | Lemon Hill, CA | United States |
| Population | 16,091 | 14,471 | 329,725,481 |
| Female Population | 52.5% | 48.8% | 50.5% |
| Male Population | 47.5% | 51.2% | 49.5% |
| Median Age | 31.3 | 30.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 14,153 | 13,424 | 309,327,143 |
| Population - 2000 | 14,398 | 14,849 | 285,036,114 |
| Population - 1990 | 13,206 | 12,748 | 251,960,433 |
| Pop. 2000 to Now | 17.2% | -0.3% | 15.6% |
| Pop. 1990 to Now | 27.8% | 16.1% | 30.8% |
| space4 | | | |
| Population Density | 6,693.4 | 8,850.8 | 93.4 |
| Land Area | 2.4 | 1.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Parkway, CA | Lemon Hill, CA | United States |
| Age 0 to 4 | 8.1% | 7.7% | 5.9% |
| Age 5 to 9 | 8.8% | 12.2% | 6.1% |
| Age 10 to 14 | 7.8% | 8.9% | 6.6% |
| Age 15 to 17 | 5.0% | 4.3% | 3.9% |
| Age 18 to 20 | 3.8% | 5.8% | 4.0% |
| Age 21 to 24 | 5.8% | 3.9% | 5.2% |
| Age 25 to 34 | 16.2% | 14.2% | 13.8% |
| Age 35 to 44 | 10.0% | 13.0% | 12.9% |
| Age 45 to 54 | 11.3% | 10.6% | 12.6% |
| Age 55 to 59 | 6.2% | 4.5% | 6.7% |
| Age 60 to 64 | 4.7% | 4.0% | 6.3% |
| Age 65 to 74 | 6.9% | 6.9% | 9.6% |
| Age 75 to 84 | 4.1% | 2.0% | 4.5% |
| Age 85 and over | 1.3% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Parkway, CA | Lemon Hill, CA | United States |
| White | 16.1% | 15.3% | 59.4% |
| Black | 17.6% | 9.2% | 12.2% |
| Asian | 17.0% | 23.1% | 5.6% |
| Native American | 0.7% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 1.1% | 1.6% | 0.2% |
| Other | 0.3% | 0.4% | 0.4% |
| Two or More Races | 5.0% | 4.8% | 3.2% |
| Hispanic | 42.1% | 45.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Parkway, CA | Lemon Hill, CA | United States |
| Married Population | 44.0% | 45.2% | 49.8% |
| Currently Married | 40.1% | 42.2% | 48.0% |
| Married but Separated | 3.9% | 3.0% | 1.8% |
| Single Population | 56.0% | 54.8% | 50.2% |
| Never Married | 41.0% | 40.7% | 33.8% |
| Divorced | 9.2% | 9.3% | 10.8% |
| Widowed | 5.7% | 4.9% | 5.6% |
| space5 | | | |
| Household Size | 3.24 | 3.22 | 2.60 |
| Households | 4,936 | 4,488 | 124,010,992 |
| Family Households | 3,511 | 3,178 | 80,755,759 |
| Married couple, w/children | 33.4% | 32.6% | 30.5% |
| Married couple, no children | 24.6% | 23.8% | 42.9% |
| Non Family Households | 1,425 | 1,310 | 43,255,233 |
| Single householder, w/children | 25.5% | 33.6% | 15.8% |
| Single householder, no children | 16.5% | 10.1% | 10.8% |