Dukes County, Massachusetts

Dukes County sits off the southern coast of Massachusetts as a collection of islands. Martha’s Vineyard is the main attraction, and the island has long been a popular summer escape for the rich and famous.

But there’s more to Dukes County than celebrity sightings. Pristine beaches stretch along the coastline, while fishing villages dot the islands. Their weathered shingle buildings reflect generations of local history.

The Aquinnah Cliffs are a must-see natural attraction. Bike paths cross the islands, offering a great way to explore the area. Dukes County isn’t only a tourist destination, though. Year-round residents take great pride in their communities.

CategoryDetails
County NameDukes County
County SeatEdgartown
EtymologyNamed after the title of the Duke of York
Cities, Towns, and CommunitiesAquinnah, Chilmark, Edgartown, Gosnold, Oak Bluffs, Tisbury, West Tisbury
Interstates and HighwaysNo interstates; Massachusetts Route 28 and Massachusetts Route 30
FIPS Code25-007
Total Area (Land and Water)491 square miles (104 square miles land, 387 square miles water)
Adjacent Counties (and Direction)Bristol County (Northwest), Plymouth County (North), Barnstable County (Northeast), Nantucket County (East)
Time ZoneEastern Time Zone (ET)
StateMassachusetts
Coordinates41.4030° N, 70.6693° W
Major LandmarksMartha’s Vineyard, Gay Head Cliffs, Polly Hill Arboretum, Oak Bluffs Campground, Edgartown Lighthouse
PopulationApproximately 21,000

PHYSICAL MAP

Dukes County Topographic Map

Dukes County is mostly flat, with a few bluffs and gentle hills rising inland. Elevation changes are subtle, while shorelines and ponds stand out more across the landscape. You can zoom in and explore every contour with our topographic map below.

TRANSPORTATION MAP

Dukes County Road Map

Roads in Dukes County are limited to the islands, particularly Martha’s Vineyard. There are no interstates or bridges connecting the islands to the mainland. Although the road network is limited, getting around is fairly easy. Most traffic stays local, with buses providing service and many cars arriving by ferry.

SATELLITE IMAGERY

Dukes County Satellite Map

Our satellite map of Dukes County clearly shows the island’s beaches, along with large ponds and inlets cutting into the landscape, especially along the southern edge. Wooded areas cover much of the island, while open fields appear farther inland. Martha’s Vineyard Airport is also easy to spot from above.

OUTLINE MAP

Dukes County Blank Map

Dukes County is made up of several islands and does not border another state. Instead, it is surrounded by the Atlantic Ocean. Martha’s Vineyard is the largest island, while smaller areas such as Chappaquiddick and Cuttyhunk are also included. The county has an irregular shape, with numerous bays, coves, and jagged coastlines.

Massachusetts County Map

Massachusetts map showing major cities, roads, and state boundaries.

Small state, big personality. Boston’s skyline is packed with history, while the Cape delivers beach days and lobster rolls. Massachusetts brings together history, culture, and coastline across its 14 counties.

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