Guam is about 213 times smaller than Pennsylvania.

Pennsylvania is approximately 116,075 sq km, while Guam is approximately 544 sq km, making Guam 0.47% the size of Pennsylvania. Meanwhile, the population of Pennsylvania is ~12.7 million people (12.5 million fewer people live in Guam).
This to-scale comparison of Pennsylvania vs. Guam uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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