City size comparison

compared to

Key West is about 9 times smaller than Boston.

Boston is approximately 124 sq km, while Key West (area of Key West island) is approximately 14 sq km, making Key West 10.97% the size of Boston.
Tip: This to-scale comparison of Boston vs. Key West uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Key West vs. Boston

Flip Comparison · See true size
See Key West on top of Boston
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Cost of Living Comparison · 7 categories - 2026 data
Boston is 31.5% more expensive than Key West
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