Country size comparison

compared to

Illinois is about 2.1 times smaller than Oman.

Oman is approximately 309,500 sq km, while Illinois is approximately 143,961 sq km, making Illinois 46.51% the size of Oman. Meanwhile, the population of Oman is ~3.8 million people (9.1 million more people live in Illinois).
Tip: This to-scale comparison of Oman vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Illinois vs. Oman

Flip Comparison · See true size
See Illinois on top of Oman
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Quality of Life Comparison · 2 statistics
Be 69.6% less likely to be unemployed in Oman
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Cost of Living Comparison · 7 categories - 2026 data
Oman is 37.2% cheaper than Illinois
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Moving from Illinois to Oman · Cost, visas & climate
Compare cost of living, salary and climate.
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