| | Edgartown, MA | Oak Bluffs, MA | United States |
| Population | 5,084 | 5,284 | 329,725,481 |
| Female Population | 52.3% | 53.2% | 50.5% |
| Male Population | 47.7% | 46.8% | 49.5% |
| Median Age | 50.2 | 40.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,078 | 4,532 | 309,327,143 |
| Population - 2000 | 3,779 | 3,713 | 285,036,114 |
| Population - 1990 | 3,062 | 2,804 | 251,960,433 |
| Pop. 2000 to Now | 16.0% | 26.5% | 15.6% |
| Pop. 1990 to Now | 43.1% | 67.5% | 30.8% |
| space4 | | | |
| Population Density | 189.7 | 723.0 | 93.4 |
| Land Area | 26.8 | 7.3 | 3,531,905.4 |
| Water Area | 96.0 | 18.6 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Edgartown, MA | Oak Bluffs, MA | United States |
| Age 0 to 4 | 2.3% | 6.5% | 5.9% |
| Age 5 to 9 | 6.9% | 4.6% | 6.1% |
| Age 10 to 14 | 4.3% | 10.1% | 6.6% |
| Age 15 to 17 | 2.9% | 4.4% | 3.9% |
| Age 18 to 20 | 4.4% | 1.2% | 4.0% |
| Age 21 to 24 | 4.6% | 2.4% | 5.2% |
| Age 25 to 34 | 13.1% | 12.6% | 13.8% |
| Age 35 to 44 | 9.1% | 13.9% | 12.9% |
| Age 45 to 54 | 9.2% | 12.1% | 12.6% |
| Age 55 to 59 | 11.2% | 9.1% | 6.7% |
| Age 60 to 64 | 13.0% | 2.7% | 6.3% |
| Age 65 to 74 | 9.5% | 13.0% | 9.6% |
| Age 75 to 84 | 4.3% | 6.2% | 4.5% |
| Age 85 and over | 5.0% | 1.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Edgartown, MA | Oak Bluffs, MA | United States |
| White | 82.0% | 83.4% | 59.4% |
| Black | 6.6% | 4.5% | 12.2% |
| Asian | 0.5% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 1.6% | 0.0% | 0.4% |
| Two or More Races | 6.6% | 11.5% | 3.2% |
| Hispanic | 2.9% | 0.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Edgartown, MA | Oak Bluffs, MA | United States |
| Married Population | 37.2% | 52.8% | 49.8% |
| Currently Married | 36.0% | 52.8% | 48.0% |
| Married but Separated | 1.2% | 0.0% | 1.8% |
| Single Population | 62.8% | 47.2% | 50.2% |
| Never Married | 33.2% | 30.0% | 33.8% |
| Divorced | 20.4% | 14.6% | 10.8% |
| Widowed | 9.2% | 2.6% | 5.6% |
| space5 | | | |
| Household Size | 3.58 | 2.94 | 2.60 |
| Households | 1,401 | 1,766 | 124,010,992 |
| Family Households | 1,012 | 1,001 | 80,755,759 |
| Married couple, w/children | 26.2% | 39.6% | 30.5% |
| Married couple, no children | 46.4% | 45.6% | 42.9% |
| Non Family Households | 389 | 765 | 43,255,233 |
| Single householder, w/children | 8.9% | 11.2% | 15.8% |
| Single householder, no children | 18.5% | 3.7% | 10.8% |