Key West is about 1.7 times smaller than Williamsburg.

Williamsburg (map shows its 52 named neighbourhoods; the area covers the whole city) is approximately 23 sq km, while Key West (area of Key West island) is approximately 14 sq km, making Key West 58.75% the size of Williamsburg.
Tip: This to-scale comparison of Williamsburg vs. Key West uses the Mercator projection, which distorts the size of regions near the poles.
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