State size comparison

compared to

Illinois is about 38 times bigger than Sydney.

Sydney (the 30 councils of metropolitan Sydney, without the Blue Mountains, Hawkesbury, Wollondilly and the Central Coast) is approximately 3,810 sq km, while Illinois is approximately 143,961 sq km, making Illinois 3,679% larger than Sydney.
Tip: This to-scale comparison of Sydney vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Illinois vs. Sydney

Flip Comparison · See true size
See Illinois on top of Sydney
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Cost of Living Comparison · 7 categories - 2026 data
Sydney is 31.0% more expensive than Illinois
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