The County of Dukes County is a county located in the state of Massachusetts. Based on the 2010 census, the population was 16,535, 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 the island of Martha's Vineyard,
Chappaquiddick Island, the Elizabeth Islands (including Cuttyhunk) and other associated islets.
Formerly a part of Dukes County, New York until 1691, the land at one time was literally the possession of the Duke of York
County QuickFacts: CensusBureau Quick Facts
The county consists of the island of Martha's Vineyard, and the Elizabeth Islands (including Cuttyhunk). It was originally established as Dukes County, New York on November 1, 1683, and was transferred to Massachusetts and divided so that Nantucket Island became Nantucket County, Massachusetts on October 7, 1691. The statute created a county "by the name of Dukes County," as opposed to the standard form "the county of Dukes" which is the reason for the redundancy in the name.
The 1695 incorporation statute created a county "by the name of Dukes County," as opposed to the standard form "the county of Dukes" which is the reason for the redundancy in the formal name, "County of Dukes County"
As reported by the Census Bureau, the county has a total area of 491 square miles (1,272 km2), of which, 104
square miles (269 km2) of it is land and 387 square miles (1,003 km2) of it is water. The total area is 79% water.
Bordering counties are as follows: