Kentucky is about 1.9 times smaller than South Dakota.

South Dakota is approximately 196,540 sq km, while Kentucky is approximately 102,896 sq km, making Kentucky 52.35% the size of South Dakota. Meanwhile, the population of South Dakota is ~814,180 people (3.5 million more people live in Kentucky).
This to-scale comparison of South Dakota vs. Kentucky uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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