City size comparison
compared to
San Francisco is about 4.9 times smaller than Chicago.
Chicago is approximately 590 sq km, while San Francisco (including the city proper only) is approximately 121 sq km, making San Francisco 20.51% the size of Chicago.
This to-scale comparison of
Chicago
vs.
San Francisco
uses the Mercator projection, which distorts the size of regions near the poles. Learn more.
Note: Try dragging the outline to reposition.