Country size comparison

compared to

Guam is about 265 times smaller than Illinois.

Illinois is approximately 143,961 sq km, while Guam is approximately 544 sq km, making Guam 0.38% the size of Illinois. Meanwhile, the population of Illinois is ~12.8 million people (12.7 million fewer people live in Guam).
Tip: This to-scale comparison of Illinois vs. Guam uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Guam vs. Illinois

Flip Comparison · See true size
See Guam on top of Illinois
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Quality of Life Comparison · 2 statistics
Be 11.4% less likely to be unemployed in Illinois
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Cost of Living Comparison · 7 categories - 2026 data
Illinois is 0.9% cheaper than Guam overall
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Moving from Guam to Illinois · Cost, visas & climate
Compare cost of living, salary and climate.
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