Martha’s Vineyard is an island just south of Cape Cod, off the coast of Massachusetts in the northeastern United States.

Quick Scoop: Where Is Martha’s Vineyard?

  • It’s located in the Atlantic Ocean, a few miles off the southern coast of Massachusetts.
  • The island sits across Vineyard Sound from Cape Cod, roughly 3–6 miles (about 4–10 km) offshore depending on the crossing point.
  • Administratively, it’s part of Dukes County, Massachusetts.
  • Nearby points on the map: Cape Cod to the north, Nantucket Island to the east, and the open Atlantic to the south and west.

Simple mental map

If you picture the northeast USA:

  1. Find Boston on the Massachusetts coast.
  2. Move down the coast to the hook-shaped peninsula of Cape Cod.
  3. Just south of that “hook,” offshore, sits Martha’s Vineyard.

Tiny location table (HTML)

Attribute Details
Country United States
State Massachusetts
Nearest mainland area Cape Cod, southeastern Massachusetts
Body of water Atlantic Ocean, across Vineyard Sound
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Think of it as a quiet, resort-style island a short ferry ride south of Cape Cod, rather than a place on the mainland.

TL;DR: Martha’s Vineyard is an island off the southern coast of Massachusetts, just below Cape Cod, in the Atlantic Ocean.

Information gathered from public forums or data available on the internet and portrayed here.