| | Seven Valleys, PA | West Lawn, PA | United States |
| Population | 547 | 1,592 | 329,725,481 |
| Female Population | 49.9% | 43.0% | 50.5% |
| Male Population | 50.1% | 57.0% | 49.5% |
| Median Age | 33.3 | 34.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 515 | 1,391 | 309,327,143 |
| Population - 2000 | 492 | 1,597 | 285,036,114 |
| Population - 1990 | 483 | 1,606 | 251,960,433 |
| Pop. 2000 to Now | 3.1% | 12.6% | 15.6% |
| Pop. 1990 to Now | 5.0% | 12.0% | 30.8% |
| space4 | | | |
| Population Density | 502.3 | 7,509.4 | 93.4 |
| Land Area | 1.1 | 0.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Seven Valleys, PA | West Lawn, PA | United States |
| Age 0 to 4 | 4.0% | 8.8% | 5.9% |
| Age 5 to 9 | 13.2% | 5.3% | 6.1% |
| Age 10 to 14 | 6.4% | 5.3% | 6.6% |
| Age 15 to 17 | 3.3% | 0.7% | 3.9% |
| Age 18 to 20 | 0.4% | 1.4% | 4.0% |
| Age 21 to 24 | 2.2% | 6.2% | 5.2% |
| Age 25 to 34 | 28.5% | 27.5% | 13.8% |
| Age 35 to 44 | 4.4% | 8.1% | 12.9% |
| Age 45 to 54 | 15.2% | 20.4% | 12.6% |
| Age 55 to 59 | 6.8% | 4.7% | 6.7% |
| Age 60 to 64 | 5.3% | 3.1% | 6.3% |
| Age 65 to 74 | 7.7% | 4.5% | 9.6% |
| Age 75 to 84 | 2.2% | 2.6% | 4.5% |
| Age 85 and over | 0.5% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Seven Valleys, PA | West Lawn, PA | United States |
| White | 99.3% | 54.6% | 59.4% |
| Black | 0.0% | 15.5% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.7% | 6.3% | 3.2% |
| Hispanic | 0.0% | 23.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Seven Valleys, PA | West Lawn, PA | United States |
| Married Population | 56.7% | 44.0% | 49.8% |
| Currently Married | 51.0% | 43.1% | 48.0% |
| Married but Separated | 5.7% | 0.9% | 1.8% |
| Single Population | 43.3% | 56.0% | 50.2% |
| Never Married | 20.8% | 33.2% | 33.8% |
| Divorced | 15.3% | 19.2% | 10.8% |
| Widowed | 7.2% | 3.7% | 5.6% |
| space5 | | | |
| Household Size | 2.19 | 2.64 | 2.60 |
| Households | 250 | 603 | 124,010,992 |
| Family Households | 136 | 356 | 80,755,759 |
| Married couple, w/children | 43.4% | 32.6% | 30.5% |
| Married couple, no children | 39.7% | 38.5% | 42.9% |
| Non Family Households | 114 | 247 | 43,255,233 |
| Single householder, w/children | 11.0% | 13.5% | 15.8% |
| Single householder, no children | 5.9% | 15.4% | 10.8% |