State size comparison

compared to

Illinois is around the same size as Wisconsin.

Wisconsin is approximately 140,663 sq km, while Illinois is approximately 143,961 sq km, making Illinois 2% larger than Wisconsin. Meanwhile, the population of Wisconsin is ~5.7 million people (7.1 million more people live in Illinois).
Tip: This to-scale comparison of Wisconsin vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Illinois vs. Wisconsin

Flip Comparison · See true size
See Illinois on top of Wisconsin
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Quality of Life Comparison · 15 statistics
Be 37.5% less likely to be unemployed in Wisconsin
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Cost of Living Comparison · 7 categories - 2026 data
Wisconsin is 1.7% cheaper than Illinois
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