Mexico is about 10 times bigger than South Dakota.

South Dakota is approximately 196,540 sq km, while Mexico is approximately 1,964,375 sq km, making Mexico 899% larger than South Dakota. Meanwhile, the population of South Dakota is ~935,094 people (131.0 million more people live in Mexico).
Tip: This to-scale comparison of South Dakota vs. Mexico uses the Mercator projection, which distorts the size of regions near the poles.
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