State size comparison
Illinois is around the same size as Alabama.
Alabama is approximately 131,426 sq km, while Illinois is approximately 143,961 sq km, making Illinois 10% larger than Alabama. Meanwhile, the population of Alabama is ~4.8 million people (8.1 million more people live in Illinois).
This to-scale comparison of Alabama vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles. Learn more. Note: Try dragging the outline to reposition.