Country size comparison
compared to
Sierra Leone is about 2 times smaller than Illinois.
Illinois is approximately 143,961 sq km, while Sierra Leone is approximately 71,740 sq km, making Sierra Leone 49.83% the size of Illinois. Meanwhile, the population of Illinois is ~12.8 million people (4.1 million fewer people live in Sierra Leone).
Tip:
This to-scale comparison of
Illinois
vs.
Sierra Leone
uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Sierra Leone vs. Illinois
Flip Comparison · See true size
See Sierra Leone on top of Illinois
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Quality of Life Comparison · 4 statistics
Make 41.6 times more money in Illinois
→
Cost of Living Comparison · 6 categories - 2026 data
Illinois is 2.5 times more expensive than Sierra Leone overall
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Moving from Sierra Leone to Illinois · Cost, visas & climate
Compare cost of living, salary and climate.
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