Puerto Rico is about 17 times bigger than Guam.

Guam is approximately 544 sq km, while Puerto Rico is approximately 9,104 sq km, making Puerto Rico 1,574% larger than Guam. Meanwhile, the population of Guam is ~169,086 people (2.9 million more people live in Puerto Rico).
This to-scale comparison of Guam vs. Puerto Rico uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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