Country size comparison
compared to
United Kingdom is about 1.7 times bigger than Illinois.
Illinois is approximately 143,961 sq km, while United Kingdom is approximately 243,610 sq km, making United Kingdom 69% larger than Illinois. Meanwhile, the population of Illinois is ~12.7 million people (56.8 million more people live in United Kingdom).
Tip:
This to-scale comparison of
Illinois
vs.
United Kingdom
uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: United Kingdom vs. Illinois
Flip Comparison · See true size
See United Kingdom on top of Illinois
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Quality of Life Comparison · 2 statistics
Make 22.7% more money in Illinois
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Cost of Living Comparison · 7 categories - 2026 data
Illinois is 2.6% cheaper than United Kingdom overall
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Moving from United Kingdom to Illinois · Cost, visas & climate
Compare cost of living, salary and climate.
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City Size Comparison · See true size
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