City size comparison

compared to

San Francisco is about 959 times smaller than Pennsylvania.

Pennsylvania is approximately 116,075 sq km, while San Francisco (including the city proper only) is approximately 121 sq km, making San Francisco 0.1% the size of Pennsylvania.
Tip: This to-scale comparison of Pennsylvania vs. San Francisco uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: San Francisco vs. Pennsylvania

Flip Comparison · See true size
See San Francisco on top of Pennsylvania
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Cost of Living Comparison · 7 categories - 2026 data
Pennsylvania is 29.6% cheaper than San Francisco
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