State size comparison

compared to

Illinois is about 1.4 times bigger than Ohio.

Ohio is approximately 106,056 sq km, while Illinois is approximately 143,961 sq km, making Illinois 36% larger than Ohio. Meanwhile, the population of Ohio is ~11.5 million people (1.3 million more people live in Illinois).
Tip: This to-scale comparison of Ohio vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Illinois vs. Ohio

Flip Comparison · See true size
See Illinois on top of Ohio
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Quality of Life Comparison · 16 statistics
Be 16.7% less likely to be unemployed in Ohio
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Cost of Living Comparison · 7 categories - 2026 data
Ohio is 10.1% cheaper than Illinois
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Moving from Illinois to Ohio · Cost, visas & climate
Compare cost of living, salary and climate.
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