State size comparison
Illinois is around the same size as Florida.
Florida is approximately 139,670 sq km, while Illinois is approximately 143,961 sq km, making Illinois 3% larger than Florida. Meanwhile, the population of Florida is ~18.8 million people (6.0 million fewer people live in Illinois).
This to-scale comparison of Florida vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles. Learn more. Note: Try dragging the outline to reposition.