State size comparison

compared to

Illinois is about 1.4 times bigger than Kentucky.

Kentucky is approximately 102,896 sq km, while Illinois is approximately 143,961 sq km, making Illinois 40% larger than Kentucky. Meanwhile, the population of Kentucky is ~4.3 million people (8.5 million more people live in Illinois).
Tip: This to-scale comparison of Kentucky vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Illinois vs. Kentucky
Flip Comparison · See true size
See Illinois on top of Kentucky
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Cost of Living Comparison · 7 categories - 2026 data
Kentucky is 12.0% cheaper than Illinois
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