Country size comparison
Illinois is about 3.6 times smaller than Thailand.
Thailand is approximately 513,120 sq km, while Illinois is approximately 143,961 sq km, making Illinois 28.06% the size of Thailand. Meanwhile, the population of Thailand is ~69.6 million people (56.8 million fewer people live in Illinois).
This to-scale comparison of Thailand vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles. Learn more. Note: Try dragging the outline to reposition.