Country size comparison

compared to

Japan is about 1.8 times bigger than Idaho.

Idaho is approximately 214,314 sq km, while Japan is approximately 377,915 sq km, making Japan 76% larger than Idaho. Meanwhile, the population of Idaho is ~1.6 million people (122.6 million more people live in Japan).
Tip: This to-scale comparison of Idaho vs. Japan uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Japan vs. Idaho

Flip Comparison · See true size
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Cost of Living Comparison · 7 categories - 2026 data
Idaho is 72.5% more expensive than Japan overall
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Compare cost of living, salary and climate.
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