Country size comparison
compared to
Illinois is about 1.7 times smaller than United Kingdom.
United Kingdom is approximately 243,610 sq km, while Illinois is approximately 143,961 sq km, making Illinois 59.09% the size of United Kingdom. Meanwhile, the population of United Kingdom is ~67.8 million people (55.0 million fewer people live in Illinois).
Tip:
This to-scale comparison of
United Kingdom
vs.
Illinois
uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Illinois vs. United Kingdom
Flip Comparison · See true size
See Illinois on top of United Kingdom
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Quality of Life Comparison · 3 statistics
Make 23.5% less money in United Kingdom
→
Cost of Living Comparison · 7 categories - 2026 data
United Kingdom is 7.3% more expensive than Illinois
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City Size Comparison · See true size
Compare the size of Chicago vs London
→