City size comparison

compared to

Boston is about 9 times bigger than Key West.

Key West (area of Key West island) is approximately 14 sq km, while Boston is approximately 124 sq km, making Boston 812% larger than Key West.
Tip: This to-scale comparison of Key West vs. Boston uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Boston vs. Key West

Flip Comparison · See true size
See Boston on top of Key West
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Cost of Living Comparison · 7 categories - 2026 data
Key West is 12.5% cheaper than Boston
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