South Dakota is about 2.1 times bigger than Indiana.

Indiana is approximately 92,895 sq km, while South Dakota is approximately 196,540 sq km, making South Dakota 112% larger than Indiana. Meanwhile, the population of Indiana is ~6.5 million people (5.7 million fewer people live in South Dakota).
This to-scale comparison of Indiana vs. South Dakota uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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