City size comparison

compared to

San Francisco is about 1.3 times smaller than Washington.

Washington is approximately 158 sq km, while San Francisco (including the city proper only) is approximately 121 sq km, making San Francisco 76.43% the size of Washington.
Tip: This to-scale comparison of Washington 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. Washington

Flip Comparison · See true size
See San Francisco on top of Washington
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Cost of Living Comparison · 7 categories - 2026 data
Washington is 9.5% cheaper than San Francisco
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