New Mexico is about 2.2 times bigger than Illinois.

Illinois is approximately 143,961 sq km, while New Mexico is approximately 314,310 sq km, making New Mexico 118% larger than Illinois. Meanwhile, the population of Illinois is ~12.8 million people (10.8 million fewer people live in New Mexico).
Tip: This to-scale comparison of Illinois vs. New Mexico uses the Mercator projection, which distorts the size of regions near the poles.
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