State size comparison

compared to

Pennsylvania is about 138 times bigger than San Diego.

San Diego is approximately 844 sq km, while Pennsylvania is approximately 116,075 sq km, making Pennsylvania 13,653% larger than San Diego.
Tip: This to-scale comparison of San Diego vs. Pennsylvania uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Pennsylvania vs. San Diego

Flip Comparison · See true size
See Pennsylvania on top of San Diego
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Cost of Living Comparison · 7 categories - 2026 data
San Diego is 29.3% more expensive than Pennsylvania
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