Original: Often called just "the Vineyard," the island has a land area of 87.48 square miles (231.75 km²) and is the 57th largest island in the United States, and the third largest on the East Coast of the United States.
Simplified: With a land area of 87.48 square miles (231.75 km²), Martha's Vineyard is the 57th largest island in the United States.