| | Lake Meade, PA | Elizabethtown, PA | United States |
| Population | 2,436 | 11,574 | 329,725,481 |
| Female Population | 51.3% | 53.5% | 50.5% |
| Male Population | 48.7% | 46.5% | 49.5% |
| Median Age | 47.6 | 34.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,669 | 11,528 | 309,327,143 |
| Population - 2000 | 1,832 | 11,887 | 285,036,114 |
| Population - 1990 | 1,477 | 9,952 | 251,960,433 |
| Pop. 2000 to Now | 27.4% | -3.3% | 15.6% |
| Pop. 1990 to Now | 58.0% | 15.5% | 30.8% |
| space4 | | | |
| Population Density | 1,841.3 | 4,369.2 | 93.4 |
| Land Area | 1.3 | 2.6 | 3,531,905.4 |
| Water Area | 0.4 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Lake Meade, PA | Elizabethtown, PA | United States |
| Age 0 to 4 | 1.2% | 3.1% | 5.9% |
| Age 5 to 9 | 5.4% | 6.8% | 6.1% |
| Age 10 to 14 | 9.2% | 5.1% | 6.6% |
| Age 15 to 17 | 3.1% | 2.3% | 3.9% |
| Age 18 to 20 | 0.0% | 11.7% | 4.0% |
| Age 21 to 24 | 5.2% | 7.0% | 5.2% |
| Age 25 to 34 | 9.9% | 14.1% | 13.8% |
| Age 35 to 44 | 14.6% | 13.4% | 12.9% |
| Age 45 to 54 | 11.9% | 9.0% | 12.6% |
| Age 55 to 59 | 15.3% | 6.0% | 6.7% |
| Age 60 to 64 | 7.2% | 7.7% | 6.3% |
| Age 65 to 74 | 10.2% | 6.7% | 9.6% |
| Age 75 to 84 | 6.2% | 4.8% | 4.5% |
| Age 85 and over | 0.8% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Lake Meade, PA | Elizabethtown, PA | United States |
| White | 95.2% | 91.7% | 59.4% |
| Black | 0.0% | 3.0% | 12.2% |
| Asian | 0.0% | 0.7% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.4% | 0.4% |
| Two or More Races | 2.1% | 0.7% | 3.2% |
| Hispanic | 2.3% | 3.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Lake Meade, PA | Elizabethtown, PA | United States |
| Married Population | 74.1% | 48.2% | 49.8% |
| Currently Married | 72.6% | 47.0% | 48.0% |
| Married but Separated | 1.5% | 1.2% | 1.8% |
| Single Population | 25.9% | 51.8% | 50.2% |
| Never Married | 19.7% | 37.7% | 33.8% |
| Divorced | 5.2% | 9.9% | 10.8% |
| Widowed | 1.1% | 4.1% | 5.6% |
| space5 | | | |
| Household Size | 2.81 | 2.17 | 2.60 |
| Households | 866 | 4,615 | 124,010,992 |
| Family Households | 703 | 2,882 | 80,755,759 |
| Married couple, w/children | 32.3% | 26.3% | 30.5% |
| Married couple, no children | 65.7% | 51.6% | 42.9% |
| Non Family Households | 163 | 1,733 | 43,255,233 |
| Single householder, w/children | 0.0% | 16.8% | 15.8% |
| Single householder, no children | 2.0% | 5.3% | 10.8% |