State size comparison
compared to
Illinois is about 2.6 times smaller than Montana.
Montana is approximately 376,979 sq km, while Illinois is approximately 143,961 sq km, making Illinois 38.19% the size of Montana. Meanwhile, the population of Montana is ~989,415 people (11.8 million more people live in Illinois).
This to-scale comparison of
Montana
vs.
Illinois
uses the Mercator projection, which distorts the size of regions near the poles. Learn more.
Note: Try dragging the outline to reposition.
