State size comparison

compared to

Iowa is about 1.7 times smaller than Wyoming.

Wyoming is approximately 251,489 sq km, while Iowa is approximately 144,701 sq km, making Iowa 57.54% the size of Wyoming. Meanwhile, the population of Wyoming is ~563,626 people (2.5 million more people live in Iowa).
Tip: This to-scale comparison of Wyoming vs. Iowa uses the Mercator projection, which distorts the size of regions near the poles.
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