State size comparison
compared to
Wyoming is about 1.8 times bigger than Illinois.
Illinois is approximately 143,961 sq km, while Wyoming is approximately 251,489 sq km, making Wyoming 75% larger than Illinois. Meanwhile, the population of Illinois is ~12.8 million people (12.3 million fewer people live in Wyoming).
Compare further: Wyoming vs. Illinois
Flip Comparison · See true size
See Wyoming on top of Illinois
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Quality of Life Comparison · 13 statistics
Be 33.3% more likely to be unemployed in Illinois
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Cost of Living Comparison · 7 categories - 2026 data
Illinois is 2.7% more expensive than Wyoming
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City Size Comparison · See true size
Compare the size of Los Angeles vs Chicago
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