How big is Illinois?

Question: How big is Illinois?

When you ask,"How big is Illinois?" we assume that you are asking about the land area of Illinois in square miles.

Illinois is 55,518.93 square miles.

To put things in perspective, the entire United States is 3,531,844.39 square miles. This means that 1.57 percent of America is Illinois.

Research Maniacs sorted all the states by size (largest to smallest) and found Illinois to be the 24th largest state.

States by size
Find out how big other states are here.

What is the highest point in Illinois?
We found the highest point in Illinois.
Do you know what it is?

What is the lowest elevation in Illinois?
How low can you travel in Illinois?
Go here to find out!

Page Summary: On this page we answered three questions: How big (large) is Illinois in square miles? What percentage of America is Illinois? How big is Illinois compared to other states?

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