Country size comparison

compared to

Japan is about 1.9 times bigger than South Dakota.

South Dakota is approximately 196,540 sq km, while Japan is approximately 377,915 sq km, making Japan 92% larger than South Dakota. Meanwhile, the population of South Dakota is ~814,180 people (123.4 million more people live in Japan).
Tip: This to-scale comparison of South Dakota vs. Japan uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Japan vs. South Dakota

Flip Comparison · See true size
See Japan on top of South Dakota
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Quality of Life Comparison · 2 statistics
Make 33.3% more money in South Dakota
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Cost of Living Comparison · 7 categories - 2026 data
South Dakota is 50.2% more expensive than Japan overall
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