City size comparison

 Boston (MA), United States
compared to
 San Francisco (CA), United States

Boston is around the same size as San Francisco.

San Francisco (including the city proper only) is approximately 121 sq km, while Boston is approximately 124 sq km, making Boston 2% larger than San Francisco. We have positioned the outline of San Francisco near the middle of Boston.
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This to-scale comparison of San Francisco vs. Boston uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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