City size comparison

compared to

Portland is about 2.9 times bigger than San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Portland is approximately 346 sq km, making Portland 186% larger than San Francisco.
Tip: This to-scale comparison of San Francisco vs. Portland uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Portland vs. San Francisco

Flip Comparison · See true size
See Portland on top of San Francisco
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Cost of Living Comparison · 7 categories - 2026 data
San Francisco is 40.2% more expensive than Portland
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