State size comparison

compared to

Idaho is about 1.2 times bigger than Missouri.

Missouri is approximately 178,414 sq km, while Idaho is approximately 214,314 sq km, making Idaho 20% larger than Missouri. Meanwhile, the population of Missouri is ~6.0 million people (4.4 million fewer people live in Idaho).
Tip: This to-scale comparison of Missouri vs. Idaho uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Idaho vs. Missouri
Flip Comparison · See true size
See Idaho on top of Missouri
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Cost of Living Comparison · 7 categories - 2026 data
Missouri is 1.7% more expensive than Idaho
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