State size comparison
compared to
Illinois is about 1.2 times smaller than Missouri.
Missouri is approximately 178,414 sq km,
while Illinois is approximately 143,961 sq km, making
Illinois 80.69% the size of Missouri.
Meanwhile, the population of Missouri is ~6.0 million people
(6.8 million more people live in Illinois).
This to-scale comparison of
Missouri
vs.
Illinois
uses the Mercator projection, which distorts the size of regions near the poles. Learn more.
Note: Try dragging the outline to reposition.