City size comparison

compared to

San Diego is about 3.9 times bigger than Seattle.

Seattle is approximately 217 sq km, while San Diego is approximately 844 sq km, making San Diego 288% larger than Seattle.
Tip: This to-scale comparison of Seattle vs. San Diego uses the Mercator projection, which distorts the size of regions near the poles.
Share
Compare further: San Diego vs. Seattle
Flip Comparison · See true size
See San Diego on top of Seattle
→
Cost of Living Comparison · 7 categories - 2026 data
Seattle is 7.7% more expensive than San Diego
→