Country size comparison

compared to

Illinois is about 2 times bigger than Ireland.

Ireland is approximately 70,273 sq km, while Illinois is approximately 143,961 sq km, making Illinois 105% larger than Ireland. Meanwhile, the population of Ireland is ~5.5 million people (7.2 million more people live in Illinois).
Tip: This to-scale comparison of Ireland vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Illinois vs. Ireland

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Cost of Living Comparison · 7 categories - 2026 data
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