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Illinois is approximately 143,961 sq km, while Ohio is approximately 106,056 sq km, making Ohio 73.67% the size of Illinois. Meanwhile, the population of Illinois is ~12.8 million people (1.3 million fewer people live in Ohio).
Size of Ohio vs. Italy
Size of Ohio vs. China
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Size of Ohio vs. Ecuador
Size of Ohio (US) vs. Washington (US)
Size of Ohio (US) vs. Michigan (US)
Size of Ohio (US) vs. New York (US)
Size of Ohio (US) vs. Florida (US)
Size of Ohio (US) vs. California (US)
Size of Ohio (US) vs. Pennsylvania (US)
