City size comparison

compared to

San Francisco is about 1.3 times smaller than Saint Louis.

Saint Louis is approximately 160 sq km, while San Francisco (including the city proper only) is approximately 121 sq km, making San Francisco 75.69% the size of Saint Louis.
Tip: This to-scale comparison of Saint Louis 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. Saint Louis

Flip Comparison · See true size
See San Francisco on top of Saint Louis
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Cost of Living Comparison · 7 categories - 2026 data
Saint Louis is 29.3% cheaper than San Francisco
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