City size comparison

compared to

Lisbon is about 1.2 times smaller than San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Lisbon (map shows its 24 named neighbourhoods; the area covers the whole city) is approximately 100 sq km, making Lisbon 82.69% the size of San Francisco.
Tip: This to-scale comparison of San Francisco vs. Lisbon uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Lisbon vs. San Francisco

Flip Comparison · See true size
See Lisbon on top of San Francisco
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Cost of Living Comparison · 7 categories - 2026 data
San Francisco is 97.3% more expensive than Lisbon
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