State size comparison

compared to

Illinois is about 238 times bigger than Madrid.

Madrid is approximately 604 sq km, while Illinois is approximately 143,961 sq km, making Illinois 23,722% larger than Madrid.
Tip: This to-scale comparison of Madrid vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Illinois vs. Madrid
Flip Comparison · See true size
See Illinois on top of Madrid
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Cost of Living Comparison · 7 categories - 2026 data
Madrid is 4.6% cheaper than Illinois
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