| | Scottdale, PA | Ocean Pines, MD | United States |
| Population | 4,399 | 12,266 | 329,725,481 |
| Female Population | 48.1% | 49.8% | 50.5% |
| Male Population | 51.9% | 50.3% | 49.5% |
| Median Age | 41 | 61.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,355 | 11,025 | 309,327,143 |
| Population - 2000 | 4,772 | 10,496 | 285,036,114 |
| Population - 1990 | 5,184 | 4,251 | 251,960,433 |
| Pop. 2000 to Now | -14.9% | 17.2% | 15.6% |
| Pop. 1990 to Now | -21.7% | 189.4% | 30.8% |
| space4 | | | |
| Population Density | 3,798.8 | 1,842.3 | 93.4 |
| Land Area | 1.2 | 6.7 | 3,531,905.4 |
| Water Area | 0.0 | 2.7 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Scottdale, PA | Ocean Pines, MD | United States |
| Age 0 to 4 | 4.1% | 4.3% | 5.9% |
| Age 5 to 9 | 8.0% | 3.7% | 6.1% |
| Age 10 to 14 | 5.5% | 3.9% | 6.6% |
| Age 15 to 17 | 2.6% | 1.4% | 3.9% |
| Age 18 to 20 | 2.5% | 0.5% | 4.0% |
| Age 21 to 24 | 5.7% | 1.5% | 5.2% |
| Age 25 to 34 | 17.2% | 10.0% | 13.8% |
| Age 35 to 44 | 7.4% | 7.6% | 12.9% |
| Age 45 to 54 | 11.0% | 8.4% | 12.6% |
| Age 55 to 59 | 6.7% | 6.6% | 6.7% |
| Age 60 to 64 | 6.7% | 11.1% | 6.3% |
| Age 65 to 74 | 11.6% | 22.7% | 9.6% |
| Age 75 to 84 | 8.8% | 13.7% | 4.5% |
| Age 85 and over | 2.2% | 4.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Scottdale, PA | Ocean Pines, MD | United States |
| White | 92.3% | 89.5% | 59.4% |
| Black | 0.3% | 2.4% | 12.2% |
| Asian | 1.0% | 2.5% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 6.0% | 2.1% | 3.2% |
| Hispanic | 0.4% | 3.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Scottdale, PA | Ocean Pines, MD | United States |
| Married Population | 45.1% | 61.3% | 49.8% |
| Currently Married | 44.1% | 60.3% | 48.0% |
| Married but Separated | 1.0% | 0.9% | 1.8% |
| Single Population | 54.9% | 38.7% | 50.2% |
| Never Married | 32.6% | 16.2% | 33.8% |
| Divorced | 11.7% | 11.8% | 10.8% |
| Widowed | 10.6% | 10.8% | 5.6% |
| space5 | | | |
| Household Size | 2.25 | 2.21 | 2.60 |
| Households | 1,950 | 5,553 | 124,010,992 |
| Family Households | 1,099 | 3,792 | 80,755,759 |
| Married couple, w/children | 21.1% | 15.7% | 30.5% |
| Married couple, no children | 49.1% | 65.0% | 42.9% |
| Non Family Households | 851 | 1,761 | 43,255,233 |
| Single householder, w/children | 16.2% | 8.3% | 15.8% |
| Single householder, no children | 13.6% | 10.9% | 10.8% |