City size comparison

compared to

Detroit is about 2.4 times smaller than San Diego.

San Diego is approximately 844 sq km, while Detroit is approximately 359 sq km, making Detroit 42.57% the size of San Diego.
Tip: This to-scale comparison of San Diego vs. Detroit uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Detroit vs. San Diego
Flip Comparison · See true size
See Detroit on top of San Diego
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Cost of Living Comparison · 7 categories - 2026 data
San Diego is 37.8% more expensive than Detroit
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