South Dakota is around the same size as Missouri.

Missouri is approximately 178,414 sq km, while South Dakota is approximately 196,540 sq km, making South Dakota 10% larger than Missouri. Meanwhile, the population of Missouri is ~6.0 million people (5.2 million fewer people live in South Dakota).
This to-scale comparison of Missouri vs. South Dakota uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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