West Palm Beach is around the same size as San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while West Palm Beach (map shows its 34 named neighbourhoods; the area covers the whole city) is approximately 140 sq km, making West Palm Beach 15% larger than San Francisco.
Tip: This to-scale comparison of San Francisco vs. West Palm Beach uses the Mercator projection, which distorts the size of regions near the poles.
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