State size comparison

compared to

Illinois is about 1.2 times smaller than North Dakota.

North Dakota is approximately 178,647 sq km, while Illinois is approximately 143,961 sq km, making Illinois 80.58% the size of North Dakota. Meanwhile, the population of North Dakota is ~672,591 people (12.2 million more people live in Illinois).
Tip: This to-scale comparison of North Dakota vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles.
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