Dukes County, Massachusetts
Dukes County | |
|---|---|
| County of Dukes County | |
County Administration Building at the Martha's Vineyard Airport | |
Location within the U.S. state of Massachusetts | |
Massachusetts's location within the U.S. | |
| Coordinates: 41°24′53″N 70°36′46″W / 41.414841°N 70.612679°W | |
| Country | United States |
| State | Massachusetts |
| Founded | 1695 |
| Named after | James, Duke of York |
| Seat | Edgartown |
| Largest town | Oak Bluffs |
| Area | |
• Total | 491 sq mi (1,270 km2) |
| • Land | 103 sq mi (270 km2) |
| • Water | 388 sq mi (1,000 km2) 79% |
| Population (2020) | |
• Total | 20,600 |
| • Density | 199.6/sq mi (77.1/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional district | 9th |
| Website | www |
Dukes County is a county in the U.S. state of Massachusetts. At the 2020 census, the population was 20,600, making it the second-least populous county in Massachusetts. Its county seat is Edgartown.
Dukes County comprises the Vineyard Haven, MA Micropolitan Statistical Area. The county consists of 32 named islands, the largest of which is Martha's Vineyard. It also includes Chappaquiddick Island (sometimes peninsula of the Vineyard), the Elizabeth Islands, including Cuttyhunk, and Nomans Land.