Dukes County is a maritime county located in the U.S. state of Massachusetts. It is made up primarily of Martha's Vineyard and a chain of smaller islands. The county is known for its island geography, summer tourism, and a small year-round population: according to the 2010 census the permanent population was 16,535. The county seat is Edgartown, a historic port town with a distinct whaling-era architecture.

Geography and communities

Dukes County consists of several inhabited and uninhabited islands. Martha's Vineyard is the largest and contains most of the county's towns and services. The Elizabeth Islands lie to the west and are sparsely settled. Nomans Land and other small islets are largely undeveloped and provide important wildlife habitat.

  • Major towns on Martha's Vineyard: Edgartown, Oak Bluffs, Tisbury (Vineyard Haven), West Tisbury, Chilmark, and Aquinnah.
  • Gosnold administers the Elizabeth Islands and represents the county's smallest town by population.

History and identity

The islands have a layered colonial history and a long indigenous presence predating European settlement. Over time they developed maritime industries such as fishing and whaling, and later became popular as summer resorts. The county's name and administrative boundaries reflect colonial-era decisions and subsequent integration into Massachusetts governance.

Economy, culture and seasonal patterns

The local economy depends heavily on tourism, hospitality, arts, and services that support a large influx of summer residents and visitors. Many businesses operate seasonally, and cultural life is shaped by fishing traditions, galleries, festivals, and conservation efforts. Agricultural activities and local fisheries remain part of the year-round economy.

Transport, conservation and notable features

Access to Dukes County is primarily by ferry and by air via small regional airports; there are no fixed road bridges to the mainland, which helps preserve the islands' character. The county contains notable natural features such as clay cliffs, lighthouse landmarks, and protected wildlife areas. Several islands and reserves are managed for conservation and public recreation, making Dukes County an important region for both cultural heritage and coastal ecology.

For practical information about administration, services and visitor planning, consult local town webpages and regional guides via official links and resources.