City size comparison

compared to

Seattle is about 3.9 times smaller than San Diego.

San Diego is approximately 844 sq km, while Seattle is approximately 217 sq km, making Seattle 25.75% the size of San Diego.
Tip: This to-scale comparison of San Diego vs. Seattle uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Seattle vs. San Diego
Flip Comparison · See true size
See Seattle on top of San Diego
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Cost of Living Comparison · 7 categories - 2026 data
San Diego is 4.6% cheaper than Seattle
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