City size comparison

compared to

San Diego is about 1.4 times bigger than Madrid.

Madrid is approximately 604 sq km, while San Diego is approximately 844 sq km, making San Diego 40% larger than Madrid.
Tip: This to-scale comparison of Madrid vs. San Diego uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: San Diego vs. Madrid
Flip Comparison · See true size
See San Diego on top of Madrid
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Cost of Living Comparison · 7 categories - 2026 data
Madrid is 24.1% cheaper than San Diego
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