| | Skidaway Island, GA | Potomac, MD | United States |
| Population | 8,961 | 46,891 | 329,725,481 |
| Female Population | 52.1% | 51.7% | 50.5% |
| Male Population | 47.9% | 48.3% | 49.5% |
| Median Age | 65.4 | 46.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 8,075 | 44,785 | 309,327,143 |
| Population - 2000 | 6,914 | 44,822 | 285,036,114 |
| Population - 1990 | 4,495 | 45,634 | 251,960,433 |
| Pop. 2000 to Now | 20.5% | 4.0% | 15.6% |
| Pop. 1990 to Now | 85.3% | 2.1% | 30.8% |
| space4 | | | |
| Population Density | 543.5 | 1,865.7 | 93.4 |
| Land Area | 16.5 | 25.1 | 3,531,905.4 |
| Water Area | 1.4 | 1.5 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Skidaway Island, GA | Potomac, MD | United States |
| Age 0 to 4 | 2.1% | 4.5% | 5.9% |
| Age 5 to 9 | 2.8% | 5.9% | 6.1% |
| Age 10 to 14 | 4.5% | 8.1% | 6.6% |
| Age 15 to 17 | 1.6% | 6.2% | 3.9% |
| Age 18 to 20 | 1.2% | 3.3% | 4.0% |
| Age 21 to 24 | 1.2% | 3.1% | 5.2% |
| Age 25 to 34 | 4.7% | 5.6% | 13.8% |
| Age 35 to 44 | 5.8% | 10.9% | 12.9% |
| Age 45 to 54 | 7.2% | 15.7% | 12.6% |
| Age 55 to 59 | 9.8% | 7.8% | 6.7% |
| Age 60 to 64 | 8.2% | 7.1% | 6.3% |
| Age 65 to 74 | 27.9% | 11.8% | 9.6% |
| Age 75 to 84 | 17.7% | 7.3% | 4.5% |
| Age 85 and over | 5.3% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Skidaway Island, GA | Potomac, MD | United States |
| White | 90.0% | 59.8% | 59.4% |
| Black | 2.0% | 5.8% | 12.2% |
| Asian | 1.8% | 20.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 3.4% | 0.6% | 0.4% |
| Two or More Races | 2.0% | 2.9% | 3.2% |
| Hispanic | 0.8% | 10.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Skidaway Island, GA | Potomac, MD | United States |
| Married Population | 70.6% | 66.1% | 49.8% |
| Currently Married | 70.5% | 65.2% | 48.0% |
| Married but Separated | 0.1% | 0.8% | 1.8% |
| Single Population | 29.4% | 34.0% | 50.2% |
| Never Married | 12.9% | 23.2% | 33.8% |
| Divorced | 7.9% | 5.5% | 10.8% |
| Widowed | 8.6% | 5.3% | 5.6% |
| space5 | | | |
| Household Size | 2.06 | 2.82 | 2.60 |
| Households | 4,337 | 16,514 | 124,010,992 |
| Family Households | 2,980 | 13,115 | 80,755,759 |
| Married couple, w/children | 11.8% | 41.0% | 30.5% |
| Married couple, no children | 80.5% | 46.5% | 42.9% |
| Non Family Households | 1,357 | 3,399 | 43,255,233 |
| Single householder, w/children | 3.8% | 6.1% | 15.8% |
| Single householder, no children | 3.8% | 6.4% | 10.8% |