Country size comparison

compared to

South Korea is about 2 times smaller than South Dakota.

South Dakota is approximately 196,540 sq km, while South Korea is approximately 99,720 sq km, making South Korea 50.74% the size of South Dakota. Meanwhile, the population of South Dakota is ~814,180 people (51.0 million more people live in South Korea).
Tip: This to-scale comparison of South Dakota vs. South Korea uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: South Korea vs. South Dakota

Flip Comparison · See true size
See South Korea on top of South Dakota
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Quality of Life Comparison · 2 statistics
Make 22.0% more money in South Dakota
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Cost of Living Comparison · 7 categories - 2026 data
South Dakota is 41.0% more expensive than South Korea overall
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