California is about 4 times bigger than South Korea.

South Korea is approximately 99,720 sq km, while California is approximately 403,882 sq km, making California 305% larger than South Korea. Meanwhile, the population of South Korea is ~51.8 million people (14.6 million fewer people live in California).
This to-scale comparison of South Korea vs. California uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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