Gambia is about 13 times smaller than Illinois.

Illinois is approximately 143,961 sq km, while Gambia is approximately 11,300 sq km, making Gambia 7.85% the size of Illinois. Meanwhile, the population of Illinois is ~12.8 million people (10.4 million fewer people live in Gambia).
This to-scale comparison of Illinois vs. Gambia uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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