Staten Island is about 1.5 times smaller than Martha's Vineyard.

Martha's Vineyard is approximately 227 km² (87 sq mi), while Staten Island is approximately 150 km² (58 sq mi), making Staten Island 66.13% the size of Martha's Vineyard.
Tip: This to-scale comparison of Martha's Vineyard vs. Staten Island uses the Mercator projection, which distorts the size of regions near the poles.
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