Illinois is about 16 times bigger than Puerto Rico.

Puerto Rico is approximately 9,104 sq km, while Illinois is approximately 143,961 sq km, making Illinois 1,481% larger than Puerto Rico. Meanwhile, the population of Puerto Rico is ~3.1 million people (9.7 million more people live in Illinois).
This to-scale comparison of Puerto Rico vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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