Niue is about 554 times smaller than Illinois.

Illinois is approximately 143,961 sq km, while Niue is approximately 260 sq km, making Niue 0.18% the size of Illinois. Meanwhile, the population of Illinois is ~12.7 million people (12.7 million fewer people live in Niue).
Tip: This to-scale comparison of Illinois vs. Niue uses the Mercator projection, which distorts the size of regions near the poles.
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