State size comparison
compared to
Illinois is about 171 times bigger than San Diego.
San Diego is approximately 844 sq km, while Illinois is approximately 143,961 sq km, making Illinois 16,957% larger than San Diego.
This to-scale comparison of
San Diego
vs.
Illinois
uses the Mercator projection, which distorts the size of regions near the poles. Learn more.
Note: Try dragging the outline to reposition.