South Dakota is about 1.4 times bigger than Florida.

Florida is approximately 139,670 sq km, while South Dakota is approximately 196,540 sq km, making South Dakota 41% larger than Florida. Meanwhile, the population of Florida is ~18.8 million people (18.0 million fewer people live in South Dakota).
Tip: This to-scale comparison of Florida vs. South Dakota uses the Mercator projection, which distorts the size of regions near the poles.
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