Country size comparison
compared to
Illinois is about 1.4 times bigger than South Korea.
South Korea is approximately 99,720 sq km, while Illinois is approximately 143,961 sq km, making Illinois 44% larger than South Korea. Meanwhile, the population of South Korea is ~51.8 million people (39.0 million fewer people live in Illinois).
Tip:
This to-scale comparison of
South Korea
vs.
Illinois
uses the Mercator projection, which distorts the size of regions near the poles.
Try dragging the outline to reposition.
Compare further: Illinois vs. South Korea
Flip Comparison · See true size
See Illinois on top of South Korea
→
Quality of Life Comparison · 3 statistics
Be 45.0% less likely to be unemployed in South Korea
→
Cost of Living Comparison · 7 categories - 2026 data
South Korea is 26.9% cheaper than Illinois
→
Moving from Illinois to South Korea · Cost, visas & climate
Compare cost of living, salary and climate.
→
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.