South Dakota is about 49 times smaller than China.

China is approximately 9,596,960 sq km, while South Dakota is approximately 196,540 sq km, making South Dakota 2.05% the size of China. Meanwhile, the population of China is ~1.4 billion people (1.4 billion fewer people live in South Dakota).
This to-scale comparison of China vs. South Dakota uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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