Hawaii is about 12 times smaller than South Dakota.

South Dakota is approximately 196,540 sq km, while Hawaii is approximately 16,635 sq km, making Hawaii 8.46% the size of South Dakota. Meanwhile, the population of South Dakota is ~935,094 people (497,726 more people live in Hawaii).
Tip: This to-scale comparison of South Dakota vs. Hawaii uses the Mercator projection, which distorts the size of regions near the poles.
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