Country size comparison

compared to

Sao Tome and Principe is about 149 times smaller than Illinois.

Illinois is approximately 143,961 sq km, while Sao Tome and Principe is approximately 964 sq km, making Sao Tome and Principe 0.67% the size of Illinois. Meanwhile, the population of Illinois is ~12.8 million people (12.6 million fewer people live in Sao Tome and Principe).
Tip: This to-scale comparison of Illinois vs. Sao Tome and Principe uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Sao Tome and Principe vs. Illinois

Flip Comparison · See true size
See Sao Tome and Principe on top of Illinois
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Quality of Life Comparison · 4 statistics
Make 12.9 times more money in Illinois
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Cost of Living Comparison · 6 categories - 2026 data
Illinois is 2.5 times more expensive than Sao Tome and Principe overall
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