Please wait.
loading...
Dukes County is a county located in the U.S. state of Massachusetts. As of the 2010 census, the population was 16,535, making it the second-least populous county in Massachusetts. Its county seat is Edgartown. The county consists of the island of Martha's Vineyard (including Chappaquiddick Island), the Elizabeth Islands (including Cuttyhunk), the island of Nomans Land, and other associated isl...