State size comparison
Illinois is about 11 times bigger than Connecticut.
Connecticut is approximately 12,548 sq km, while Illinois is approximately 143,961 sq km, making Illinois 1,047% larger than Connecticut. Meanwhile, the population of Connecticut is ~3.6 million people (9.3 million more people live in Illinois).
This to-scale comparison of Connecticut vs. Illinois uses the Mercator projection, which distorts the size of regions near the poles. Learn more. Note: Try dragging the outline to reposition.