City size comparison

compared to

San Diego is about 1.4 times bigger than Chicago.

Chicago is approximately 590 sq km, while San Diego is approximately 844 sq km, making San Diego 43% larger than Chicago.
Tip: This to-scale comparison of Chicago 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. Chicago
Flip Comparison · See true size
See San Diego on top of Chicago
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Cost of Living Comparison · 7 categories - 2026 data
Chicago is 2.0% cheaper than San Diego
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