State size comparison
Illinois, USA
compared to
Colorado, USA
Illinois is about 1.9 times smaller than Colorado.
Colorado is approximately 268,627 sq km, while Illinois is approximately 143,961 sq km, making Illinois 53.59% the size of Colorado. Meanwhile, the population of Colorado is ~5.0 million people (7.8 million more people live in Illinois).
We have positioned the outline of Colorado near the middle of Illinois.
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This to-scale comparison of
Colorado
vs.
Illinois
uses the Mercator projection, which distorts the size of regions near the poles. Learn more.
Note: Try dragging the outline to reposition.
