Dukes County is comprised of the island of Martha’s Vineyard and the Elizabeth Islands. According to the U.S. Census Bureau, Dukes County has a population of 14,987 and has a total area of 491 square miles, of which only 104 square miles is land. Dukes County borders Nantucket County to the east and Barnstable County to the northeast.
The Dukes County Superior Court is located in Edgartown, Massachusetts. There are district courts located in the following towns: