Thailand is about 2.6 times bigger than South Dakota.

South Dakota is approximately 196,540 sq km, while Thailand is approximately 513,120 sq km, making Thailand 161% larger than South Dakota. Meanwhile, the population of South Dakota is ~814,180 people (68.8 million more people live in Thailand).
This to-scale comparison of South Dakota vs. Thailand uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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