Switzerland is about 3.4 times smaller than Wisconsin.

Wisconsin is approximately 140,663 sq km, while Switzerland is approximately 41,277 sq km, making Switzerland 29.34% the size of Wisconsin. Meanwhile, the population of Wisconsin is ~6.0 million people (3.1 million more people live in Switzerland).
Tip: This to-scale comparison of Wisconsin vs. Switzerland uses the Mercator projection, which distorts the size of regions near the poles.
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