State size comparison

compared to

Illinois is about 1.3 times bigger than Louisiana.

Louisiana is approximately 112,825 sq km, while Illinois is approximately 143,961 sq km, making Illinois 28% larger than Louisiana. Meanwhile, the population of Louisiana is ~4.5 million people (8.3 million more people live in Illinois).
Tip: This to-scale comparison of Louisiana vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Illinois vs. Louisiana
Flip Comparison · See true size
See Illinois on top of Louisiana
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Cost of Living Comparison · 7 categories - 2026 data
Louisiana is 11.4% cheaper than Illinois
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