Dukes County | |
|---|---|
| County of Dukes County | |
 County Administration Building at the Martha's Vineyard Airport | |
 Seal | |
 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 for | 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,[1] making it the second-least populous county in Massachusetts. Its county seat is Edgartown.[2]
Dukes County comprises the Vineyard Haven, MA Micropolitan Statistical Area. The county consists of 32 named islands,[3] 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.
- ^ "Dukes County, Massachusetts". United States Census Bureau. Retrieved September 16, 2022.
- ^ "Find a County". National Association of Counties. Archived from the original on July 4, 2012. Retrieved June 7, 2011.
- ^ Cheek, Alexander (January 6, 2023). "Martha's Vineyard Map". Retrieved January 6, 2023.